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GIA Certified Round Brilliant Cut Loose Diamond 1.02ct
GIA Certified Round Brilliant Cut Loose Diamond 1.02ct

GIA Certified Round Brilliant Cut Loose Diamond 1.02ct

Located in Laguna Beach, CA

Loose round brilliant diamond. Weighs 1.02 carats, L color, VS2 clarity. The diamond measures

Category

Late 20th Century Loose Gemstones

Materials

Diamond

Loose Round Brilliant Cut Diamond 1.26 ct
Loose Round Brilliant Cut Diamond 1.26 ct

Loose Round Brilliant Cut Diamond 1.26 ct

Located in Laguna Beach, CA

Loose round brilliant diamond, 1.26 carats. No grading lab certificate. H to I color, i1 -i2

Category

Mid-20th Century Loose Gemstones

Materials

Diamond

Alexander Beverly Hills GIA 6.19ct E VVS2 Round Diamond
Alexander Beverly Hills GIA 6.19ct E VVS2 Round Diamond

Alexander Beverly Hills GIA 6.19ct E VVS2 Round Diamond

$352,000Sale Price|20% Off

H 0.29 in W 0.47 in L 0.47 in

Alexander Beverly Hills GIA 6.19ct E VVS2 Round Diamond

By Alexander Beverly Hills

Located in BEVERLY HILLS, CA

Stunning loose round brilliant diamond, GIA certified. Sold as loose diamond but can easily be made

Category

21st Century and Contemporary Contemporary Loose Gemstones

Materials

Diamond, White Diamond

Alexander Beverly Hills GIA 3.01ct L VVS2 Round Diamond
Alexander Beverly Hills GIA 3.01ct L VVS2 Round Diamond

Alexander Beverly Hills GIA 3.01ct L VVS2 Round Diamond

$30,500Sale Price|20% Off

H 0.22 in W 0.38 in L 0.38 in

Alexander Beverly Hills GIA 3.01ct L VVS2 Round Diamond

By Alexander Beverly Hills

Located in BEVERLY HILLS, CA

Stunning loose round brilliant diamond, GIA certified. Sold as loose diamond but can easily be made

Category

21st Century and Contemporary Contemporary Loose Gemstones

Materials

Diamond

GIA Certified Round Brilliant Loose Diamond 1.08ct
GIA Certified Round Brilliant Loose Diamond 1.08ct

GIA Certified Round Brilliant Loose Diamond 1.08ct

Located in Laguna Beach, CA

GIA graded 1.08 carat round brilliant cut diamond. Graded F color, i1 clarity, very good symmetry

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Round Brilliant Cut Diamond 0.96 ct
Loose Round Brilliant Cut Diamond 0.96 ct

Loose Round Brilliant Cut Diamond 0.96 ct

Located in Laguna Beach, CA

Loose .96 carat round brilliant cut diamond. No grading lab certificate. J- K color, i1 clarity. 10

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Round Brilliant Cut Loose Diamond 0.94 ct
Round Brilliant Cut Loose Diamond 0.94 ct

Round Brilliant Cut Loose Diamond 0.94 ct

Located in Laguna Beach, CA

Loose .94 carat round brilliant cut No grading certificate. Grading is done by a GIA graduate

Category

Early 20th Century Loose Gemstones

Materials

Diamond

GIA Certified Round Brilliant Cut Loose Diamond 0.81ct
GIA Certified Round Brilliant Cut Loose Diamond 0.81ct

GIA Certified Round Brilliant Cut Loose Diamond 0.81ct

Located in Laguna Beach, CA

Loose .81 carat round brilliant cut diamond. GIA graded J color, Vs2 clarity, good cut. Very

Category

Late 20th Century Loose Gemstones

Materials

Diamond

GIA Certified Round Brilliant Cut Loose Diamond 0.42ct
GIA Certified Round Brilliant Cut Loose Diamond 0.42ct

GIA Certified Round Brilliant Cut Loose Diamond 0.42ct

Located in Laguna Beach, CA

Loose round brilliant cut diamond, .42 carats. GIA grade G color, VS1 clarity, good cut. Measures

Category

Late 20th Century Loose Gemstones

Materials

Diamond

GIA Certified Round Brilliant Cut Loose Diamond 0.86ct
GIA Certified Round Brilliant Cut Loose Diamond 0.86ct

GIA Certified Round Brilliant Cut Loose Diamond 0.86ct

Located in Laguna Beach, CA

0.86 carat round brilliant cut diamond. GIA certified, G color, Si1 clarity, Cut good, no

Category

Late 20th Century Loose Gemstones

Materials

Diamond

GIA Certified Round Brilliant Cut Loose Diamond 0.70ct
GIA Certified Round Brilliant Cut Loose Diamond 0.70ct

GIA Certified Round Brilliant Cut Loose Diamond 0.70ct

Located in Laguna Beach, CA

.70 carat round brilliant cut diamond. GIA graded J color and Si clarity, good cut. GIA grading

Category

Late 20th Century Loose Gemstones

Materials

Diamond

GIA Certified Round Brilliant Cut Loose Diamond 0.96ct
GIA Certified Round Brilliant Cut Loose Diamond 0.96ct

GIA Certified Round Brilliant Cut Loose Diamond 0.96ct

Located in Laguna Beach, CA

GIA Certified .96ct RBC G Color/VS1 Clarity, VG Cut Diamond. 0.96 carat round brilliant cut diamond

Category

Late 20th Century Loose Gemstones

Materials

Diamond

GIA Certified Round Brilliant Cut Loose Diamond 0.73ct
GIA Certified Round Brilliant Cut Loose Diamond 0.73ct

GIA Certified Round Brilliant Cut Loose Diamond 0.73ct

Located in Laguna Beach, CA

0.73 carat round brilliant cut diamond. GIA grading report number 2201653724. The color grade is I

Category

Late 20th Century Loose Gemstones

Materials

Diamond

GIA Certified Round Brilliant Cut Loose Diamond 1.00ct
GIA Certified Round Brilliant Cut Loose Diamond 1.00ct

GIA Certified Round Brilliant Cut Loose Diamond 1.00ct

Located in Laguna Beach, CA

1.00 carat round brilliant cut diamond. GIA graded E color, i3 clarity. The GIA report number is

Category

Late 20th Century Loose Gemstones

Materials

Diamond

GIA Certified Round Brilliant Cut Loose Diamond 1.78ct
GIA Certified Round Brilliant Cut Loose Diamond 1.78ct

GIA Certified Round Brilliant Cut Loose Diamond 1.78ct

Located in Laguna Beach, CA

GIA graded 1.78 carat round brilliant cut diamond. M color, slightly yellow. The clarity is i1 with

Category

Late 20th Century Loose Gemstones

Materials

Diamond

GIA Certified Round Brilliant Cut Loose Diamond 1.19ct
GIA Certified Round Brilliant Cut Loose Diamond 1.19ct

GIA Certified Round Brilliant Cut Loose Diamond 1.19ct

Located in Laguna Beach, CA

Round brilliant cut, 1.19 carat. GIA graded J color, Vs1 clarity, good symmetry. 57% table size is

Category

Late 20th Century Loose Gemstones

Materials

Diamond

Bespoke Loose Blue Round Brilliant Cut Diamonds 1.00ct
Bespoke Loose Blue Round Brilliant Cut Diamonds 1.00ct

Bespoke Loose Blue Round Brilliant Cut Diamonds 1.00ct

Located in SYDNEY, NSW

A Set of Assorted Treated Deep Blue Round Brilliant Cut Diamonds, approximately 0.02ct each, 50 in

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond, White Gold

IGI Certified 0.92 Carat Round Brilliant Cut Loose Diamond
IGI Certified 0.92 Carat Round Brilliant Cut Loose Diamond

IGI Certified 0.92 Carat Round Brilliant Cut Loose Diamond

Located in New York, NY

0.92 Round Brilliant Cut Natural Loose Diamond IGI certified J / SI2 Polish: Very Good

Category

2010s American Loose Gemstones

Materials

Diamond

EGL USA Certified Round Brilliant Cut Loose Diamond 0.69ct
EGL USA Certified Round Brilliant Cut Loose Diamond 0.69ct

EGL USA Certified Round Brilliant Cut Loose Diamond 0.69ct

Located in Laguna Beach, CA

This loose natural round brilliant diamond has a carat weight of 0.69. I2 clarity, and an H color

Category

Late 20th Century Loose Gemstones

Materials

Diamond

Loose Diamond - Round Brilliant 1.60ct GIA F SI1 Solitaire
Loose Diamond - Round Brilliant 1.60ct GIA F SI1 Solitaire

Loose Diamond - Round Brilliant 1.60ct GIA F SI1 Solitaire

Located in Greensboro, NC

Stone Information Natural Diamond Carat(s): 1.60ct Cut: Round Brilliant Color: F Clarity: SI1 Size

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

GIA Certified Round Brilliant Cut Loose Diamond 1.01 ct
GIA Certified Round Brilliant Cut Loose Diamond 1.01 ct

GIA Certified Round Brilliant Cut Loose Diamond 1.01 ct

Located in Laguna Beach, CA

Loose 1.01 carat round brilliant cut diamond. GIA graded G color, Si2 clarity, Very Good cut grade

Category

Mid-20th Century Loose Gemstones

Materials

Diamond

Loose Diamond - Round Brilliant 1.22ctw GIA D I1 Solitaire
Loose Diamond - Round Brilliant 1.22ctw GIA D I1 Solitaire

Loose Diamond - Round Brilliant 1.22ctw GIA D I1 Solitaire

Located in Greensboro, NC

Stone Information Natural Diamond Carat(s): 1.22ct Cut: Round Brilliant Color: D Clarity: I1 Size

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond - Round Brilliant .59ct GIA G I1 Solitaire
Loose Diamond - Round Brilliant .59ct GIA G I1 Solitaire

Loose Diamond - Round Brilliant .59ct GIA G I1 Solitaire

Located in Greensboro, NC

Carat(s): .59ct Cut: Round Brilliant Color: G Clarity: I1 Certified by: GIA Report Number

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond - Round Brilliant .88ct GIA G VS2 Solitaire
Loose Diamond - Round Brilliant .88ct GIA G VS2 Solitaire

Loose Diamond - Round Brilliant .88ct GIA G VS2 Solitaire

Located in Greensboro, NC

Stone Information Natural Diamond Carat(s): 0.88ct Cut: Round Brilliant Color: G Clarity: VS2 Size

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond - Round Brilliant .59ct GIA I VS2 Solitaire
Loose Diamond - Round Brilliant .59ct GIA I VS2 Solitaire

Loose Diamond - Round Brilliant .59ct GIA I VS2 Solitaire

Located in Greensboro, NC

Stone Information Natural Diamond Carat(s): 0.59ct Cut: Round Brilliant Color: I Clarity: VS2 Size

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

GIA Certified 0.93 Carat Round Brilliant Cut Loose Diamond
GIA Certified 0.93 Carat Round Brilliant Cut Loose Diamond

GIA Certified 0.93 Carat Round Brilliant Cut Loose Diamond

Located in Laguna Beach, CA

0.93ct RBC GIA i color/VVS1 Clarity, VG cut Diamond 0.93 carat round brilliant cut diamond. GIA

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

GIA Certified 0.58CT F SI2 Round Brilliant Loose Diamond
GIA Certified 0.58CT F SI2 Round Brilliant Loose Diamond

GIA Certified 0.58CT F SI2 Round Brilliant Loose Diamond

Located in New York, NY

ITEM DESCRIPTIO ID #: 56573 Stone Shape: Round Brilliant Diamond Weight: 0.58CT Clarity: SI2 Color

Category

Antique 15th Century and Earlier Loose Gemstones

Materials

White Diamond

Loose Diamond - Round Brilliant 3.43ct GIA L SI2 Solitaire
Loose Diamond - Round Brilliant 3.43ct GIA L SI2 Solitaire

Loose Diamond - Round Brilliant 3.43ct GIA L SI2 Solitaire

Located in Greensboro, NC

Carat(s): 3.43ct Cut: Round Brilliant Color: L Clarity: SI2 Certified by: GIA Report Number

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond - Round Brilliant 1.15ct GIA E VS2 Solitaire
Loose Diamond - Round Brilliant 1.15ct GIA E VS2 Solitaire

Loose Diamond - Round Brilliant 1.15ct GIA E VS2 Solitaire

Located in Greensboro, NC

Carat(s): 1.15ct Cut: Round Brilliant Color: E Clarity: VS2 Certified by: GIA Report Number

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond - Round Brilliant 1.01ct GIA F VS1 Solitaire
Loose Diamond - Round Brilliant 1.01ct GIA F VS1 Solitaire

Loose Diamond - Round Brilliant 1.01ct GIA F VS1 Solitaire

Located in Greensboro, NC

Carat(s): 1.01ct Cut: Round Brilliant Color: F Clarity: VS1 Certified by: GIA Report Number

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond - Round Brilliant 1.01ct GIA E VS1 Solitaire
Loose Diamond - Round Brilliant 1.01ct GIA E VS1 Solitaire

Loose Diamond - Round Brilliant 1.01ct GIA E VS1 Solitaire

Located in Greensboro, NC

Stone Information Natural Diamond Carat(s): 1.01ct Cut: Round Brilliant Color: E Clarity: VS1

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond - Round Brilliant 1.19ct GIA G SI1 Solitaire
Loose Diamond - Round Brilliant 1.19ct GIA G SI1 Solitaire

Loose Diamond - Round Brilliant 1.19ct GIA G SI1 Solitaire

Located in Greensboro, NC

Carat(s): 1.19ct Cut: Round Brilliant Color: G Clarity: SI1 Certified by: GIA Report Number

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond - Round Brilliant 1.25ct GIA D SI1 Solitaire
Loose Diamond - Round Brilliant 1.25ct GIA D SI1 Solitaire

Loose Diamond - Round Brilliant 1.25ct GIA D SI1 Solitaire

Located in Greensboro, NC

Carat(s): 1.25ct Cut: Round Brilliant Color: D Clarity: SI1 Certified by: GIA Report Number

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond - Round Brilliant .51ct GIA G VS2 Solitaire
Loose Diamond - Round Brilliant .51ct GIA G VS2 Solitaire

Loose Diamond - Round Brilliant .51ct GIA G VS2 Solitaire

Located in Greensboro, NC

Carat(s): 1.80ctw Cut: Oval Color: Purple Natural Diamonds Carat(s): 1.12ctw Cut: Round Brilliant Color

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond - Round Brilliant .47ct GIA J SI1 Solitaire
Loose Diamond - Round Brilliant .47ct GIA J SI1 Solitaire

Loose Diamond - Round Brilliant .47ct GIA J SI1 Solitaire

Located in Greensboro, NC

Carat: .47ct Cut: Round Brilliant Color: J Clarity: SI1 Certified by: GIA Report Number

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond - Round Brilliant .39ct GIA F SI1 Solitaire
Loose Diamond - Round Brilliant .39ct GIA F SI1 Solitaire

Loose Diamond - Round Brilliant .39ct GIA F SI1 Solitaire

Located in Greensboro, NC

Carat: .39ct Cut: Round Brilliant Color: F Clarity: SI1 Certified by: GIA Report Number

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond - Round Brilliant .40ct GIA H VS1 Solitaire
Loose Diamond - Round Brilliant .40ct GIA H VS1 Solitaire

Loose Diamond - Round Brilliant .40ct GIA H VS1 Solitaire

Located in Greensboro, NC

Carat: .40ct Cut: Round Brilliant Color: H Clarity: VS1 Certified by: GIA Report Number

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

GIA Certified 0.91CT D SI1 Round Brilliant Loose Natural Diamond
GIA Certified 0.91CT D SI1 Round Brilliant Loose Natural Diamond

GIA Certified 0.91CT D SI1 Round Brilliant Loose Natural Diamond

$4,624Sale Price|20% Off

W 0.24 in D 0.16 in L 0.24 in

GIA Certified 0.91CT D SI1 Round Brilliant Loose Natural Diamond

Located in New York, NY

ITEM DESCRIPTION ID #: 56575 Stone Shape: Round Brilliant Diamond Weight: 0.91CT Clarity: SI1

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond, White Diamond, Blue Diamond

GIA Certified 0.76CT Q-R I3 Round Brilliant Loose Diamond
GIA Certified 0.76CT Q-R I3 Round Brilliant Loose Diamond

GIA Certified 0.76CT Q-R I3 Round Brilliant Loose Diamond

Located in New York, NY

ITEM DESCRIPTIO ID #: 56576 Stone Shape: Round Brilliant Diamond Weight: 0.76CT Clarity: I3 Color

Category

Antique 15th Century and Earlier Loose Gemstones

Materials

Brown Diamond

GIA Certified 0.58CT S-T I2 Round Brilliant Loose Diamond
GIA Certified 0.58CT S-T I2 Round Brilliant Loose Diamond

GIA Certified 0.58CT S-T I2 Round Brilliant Loose Diamond

Located in New York, NY

ITEM DESCRIPTIO ID #: 56566 Stone Shape: Round Brilliant Diamond Weight: 0.58CT Clarity: I2 Color

Category

Antique 15th Century and Earlier Loose Gemstones

Materials

White Diamond

Loose Diamond - Round Brilliant Cut .54ct GIA H SI2 Solitaire
Loose Diamond - Round Brilliant Cut .54ct GIA H SI2 Solitaire

Loose Diamond - Round Brilliant Cut .54ct GIA H SI2 Solitaire

Located in Greensboro, NC

Weight: .54ct Cut: Round Brilliant Color: H Clarity: SI2 Dimensions (mm): 5.16 - 5.23 x 3.25 GIA

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond - Round Brilliant Cut .65ct GIA D SI2 Solitaire
Loose Diamond - Round Brilliant Cut .65ct GIA D SI2 Solitaire

Loose Diamond - Round Brilliant Cut .65ct GIA D SI2 Solitaire

Located in Greensboro, NC

Carat(s): .65ct Cut: Round Brilliant Color: D Clarity: SI2 Certified by: GIA Report Number

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond - Round Brilliant Cut .45ct GIA G VS1 Solitaire
Loose Diamond - Round Brilliant Cut .45ct GIA G VS1 Solitaire

Loose Diamond - Round Brilliant Cut .45ct GIA G VS1 Solitaire

Located in Greensboro, NC

Carat: .45ct Cut: Round Brilliant Color: G Clarity: VS1 Certified by: GIA Report Number

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

GIA Certified Round Brilliant Cut Loose Diamond 1.11ct, E color, I2
GIA Certified Round Brilliant Cut Loose Diamond 1.11ct, E color, I2

GIA Certified Round Brilliant Cut Loose Diamond 1.11ct, E color, I2

Located in Laguna Beach, CA

Attractive round brilliant cut loose diamond, 1.11 carats, E color, I2 clarity. Measures 6.70

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

10.02 Carat GIA Certified D color, IF, Round Brilliant Cut Loose Diamond
10.02 Carat GIA Certified D color, IF, Round Brilliant Cut Loose Diamond

10.02 Carat GIA Certified D color, IF, Round Brilliant Cut Loose Diamond

$2,380,000Sale Price|20% Off

W 0.56 in D 0.34 in L 0.56 in

10.02 Carat GIA Certified D color, IF, Round Brilliant Cut Loose Diamond

Located in Wan Chai District, HK

This exceptional 10.02-carat round brilliant diamond represents the pinnacle of gemological

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond, White Diamond

GIA Certified 6.82 Carat, G Color, VS1 Clarity, Round Brilliant Loose Diamond
GIA Certified 6.82 Carat, G Color, VS1 Clarity, Round Brilliant Loose Diamond

GIA Certified 6.82 Carat, G Color, VS1 Clarity, Round Brilliant Loose Diamond

Located in Miami, FL

GIA Certified 6.82 Carat, G Color, VS1 Clarity, Round Brilliant Cut Loose Natural Diamond

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond, White Diamond

GIA Certified 4 Carat, D Color, VS2 Clarity, Round Brilliant Cut Loose Diamond
GIA Certified 4 Carat, D Color, VS2 Clarity, Round Brilliant Cut Loose Diamond

GIA Certified 4 Carat, D Color, VS2 Clarity, Round Brilliant Cut Loose Diamond

Located in Miami, FL

GIA Certified 4.00 Carat, D Color, VS2 Clarity, Round Brilliant Cut Loose Natural Diamond

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond, White Diamond

Loose Diamond, Round Brilliant Cut 1.30 Carat GIA S-T VS2 Solitaire
Loose Diamond, Round Brilliant Cut 1.30 Carat GIA S-T VS2 Solitaire

Loose Diamond, Round Brilliant Cut 1.30 Carat GIA S-T VS2 Solitaire

Located in Greensboro, NC

Weight: 1.30ct Cut: Round Brilliant Color: S - T Light Brown Clarity: VS2 Dimensions (mm

Category

21st Century and Contemporary Unknown Loose Gemstones

Materials

Diamond

Loose Diamond, Round Brilliant Cut 1.26 Carat GIA W-X VVS2 Solitaire
Loose Diamond, Round Brilliant Cut 1.26 Carat GIA W-X VVS2 Solitaire

Loose Diamond, Round Brilliant Cut 1.26 Carat GIA W-X VVS2 Solitaire

Located in Greensboro, NC

Weight: 1.26ct Cut: Round Brilliant Color: W - X Clarity: VVS2 Dimensions (mm): 6.76 - 7.01 x

Category

21st Century and Contemporary Unknown Loose Gemstones

Materials

Diamond

  • 1

Recent Sales

1.04 Carat 'Loose' Round Brilliant "Leo" Diamond
1.04 Carat 'Loose' Round Brilliant "Leo" Diamond

1.04 Carat 'Loose' Round Brilliant "Leo" Diamond

By The Leo Diamond

Located in Dallas, TX

1 Loose Round Brilliant Diamond 1.04 CT, SI-2, I; with Lab Report "Leo" Report #6526900105

Category

Late 20th Century Loose Gemstones

Materials

Diamond

Loose Diamond, 0.70ct, GIA Certified, Round Brilliant Cut
Loose Diamond, 0.70ct, GIA Certified, Round Brilliant Cut

Loose Diamond, 0.70ct, GIA Certified, Round Brilliant Cut

Located in Vienna, VA

Loose Diamond, 0.70ct, GIA Certified, Round Brilliant Cut Loose Round Brilliant Cut Diamond GIA

Category

Antique 15th Century and Earlier Loose Gemstones

Materials

Diamond

Loose Diamond, 1.62ct, GIA Certified, Round Brilliant Cut
Loose Diamond, 1.62ct, GIA Certified, Round Brilliant Cut

Loose Diamond, 1.62ct, GIA Certified, Round Brilliant Cut

Located in Vienna, VA

Loose Diamond, 1.62ct, GIA Certified, Round Brilliant Cut Loose Round Brilliant Cut Diamond GIA

Category

Antique 15th Century and Earlier Loose Gemstones

Materials

Diamond

Loose Diamond, 0.96ct, GIA Certified, Round Brilliant Cut
Loose Diamond, 0.96ct, GIA Certified, Round Brilliant Cut

Loose Diamond, 0.96ct, GIA Certified, Round Brilliant Cut

Located in Vienna, VA

Loose Diamond, 0.96ct, GIA Certified, Round Brilliant Cut Loose Round Brilliant Cut Diamond GIA

Category

Antique 15th Century and Earlier Loose Gemstones

Materials

Diamond

Loose Colored Diamond, 1.05ct, GIA Certified, Round Brilliant Cut
Loose Colored Diamond, 1.05ct, GIA Certified, Round Brilliant Cut

Loose Colored Diamond, 1.05ct, GIA Certified, Round Brilliant Cut

Located in Vienna, VA

Loose Colored Diamond, 1.05ct, GIA Certified, Round Brilliant Cut Loose Brilliant Cut Diamond GIA

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond, 0.80 CT, GIA Certified, Round Brilliant Cut
Loose Diamond, 0.80 CT, GIA Certified, Round Brilliant Cut

Loose Diamond, 0.80 CT, GIA Certified, Round Brilliant Cut

Located in Vienna, VA

Loose Diamond, 0.80 CT, GIA Certified, Round Brilliant Cut Loose Round Brilliant Cut Diamond GIA

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond 1.83 Carats Round Brilliant Cut HRD Certified Natural
Loose Diamond 1.83 Carats Round Brilliant Cut HRD Certified Natural

Loose Diamond 1.83 Carats Round Brilliant Cut HRD Certified Natural

Located in Valencia, Comunidad Valenciana

Natural Diamond Brilliant Cut Weight 1.83 Carats Color I / Clarity SI1. Measures 7.63-7.81 mm x

Category

21st Century and Contemporary Spanish Modern Loose Gemstones

Materials

Diamond

1.22 Carat Loose H / I1 Round Brilliant Cut Diamond GIA Certified
1.22 Carat Loose H / I1 Round Brilliant Cut Diamond GIA Certified

1.22 Carat Loose H / I1 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

1.22 Carat Loose H / I1 Round Brilliant Cut Diamond GIA Certified Diamond General Info Diamond Cut

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

0.72 Carat Loose J / VVS2 Round Brilliant Cut Diamond GIA Certified
0.72 Carat Loose J / VVS2 Round Brilliant Cut Diamond GIA Certified

0.72 Carat Loose J / VVS2 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

0.72 Carat Loose J / VVS2 Round Brilliant Cut Diamond GIA Certified Diamond General Info Diamond

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.71 Carat Loose K / VS2 Round Brilliant Cut Diamond GIA Certified
1.71 Carat Loose K / VS2 Round Brilliant Cut Diamond GIA Certified

1.71 Carat Loose K / VS2 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

1.71 Carat Loose K / VS2 Round Brilliant Cut Diamond GIA Certified Diamond General Info GIA Report

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

0.86 Carat Loose D / VS1 Round Brilliant Cut Diamond GIA Certified
0.86 Carat Loose D / VS1 Round Brilliant Cut Diamond GIA Certified

0.86 Carat Loose D / VS1 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

0.86 Carat Loose D / VS1 Round Brilliant Cut Diamond GIA Certified Diamond General Info Diamond

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.37 Carat Loose K / VS2 Round Brilliant Cut Diamond GIA Certified
1.37 Carat Loose K / VS2 Round Brilliant Cut Diamond GIA Certified

1.37 Carat Loose K / VS2 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

1.37 Carat Loose K / VS2 Round Brilliant Cut Diamond GIA Certified Diamond General Info Diamond

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.53 Carat Loose M/VS2 Round Brilliant Cut Diamond GIA Certified
1.53 Carat Loose M/VS2 Round Brilliant Cut Diamond GIA Certified

1.53 Carat Loose M/VS2 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

1.53 Carat Loose M/ VS2 Round Brilliant Cut Diamond GIA Certified Diamond General Info Diamond Cut

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.54 Carat Loose L/VS2 Round Brilliant Cut Diamond GIA Certified
1.54 Carat Loose L/VS2 Round Brilliant Cut Diamond GIA Certified

1.54 Carat Loose L/VS2 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

1.54 Carat Loose L / VS2 Round Brilliant Cut Diamond GIA Certified Diamond General Info Diamond

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

0.70 Carat Loose E / VS2 Round Brilliant Cut Diamond GIA Certified
0.70 Carat Loose E / VS2 Round Brilliant Cut Diamond GIA Certified

0.70 Carat Loose E / VS2 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

0.70 Carat Loose E / VS2 Round Brilliant Cut Diamond GIA Certified Diamond General Info GIA Report

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

0.51 Carat Loose F/ VS1 Round Brilliant Cut Diamond GIA Certified
0.51 Carat Loose F/ VS1 Round Brilliant Cut Diamond GIA Certified

0.51 Carat Loose F/ VS1 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

0.51 Carat Loose F/ VS1 Round Brilliant Cut Diamond GIA Certified Diamond General Info GIA Report

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

0.48 Carat Loose J/ VS2 Round Brilliant Cut Diamond GIA Certified
0.48 Carat Loose J/ VS2 Round Brilliant Cut Diamond GIA Certified

0.48 Carat Loose J/ VS2 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

0.48 Carat Loose J/ VS2 Round Brilliant Cut Diamond GIA Certified Diamond General Info Diamond

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

0.44 Carat Loose G/SI1 Round Brilliant Cut Diamond GIA Certified
0.44 Carat Loose G/SI1 Round Brilliant Cut Diamond GIA Certified

0.44 Carat Loose G/SI1 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

0.44 Carat Loose G/ SI1 Round Brilliant Cut Diamond GIA Certified Diamond General Info Diamond

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.00 Carat Loose J/ VS1 Round Brilliant Cut Diamond GIA Certified
1.00 Carat Loose J/ VS1 Round Brilliant Cut Diamond GIA Certified

1.00 Carat Loose J/ VS1 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

1.00 Carat Loose J/ VS1 Round Brilliant Cut Diamond GIA Certified Diamond General Info GIA Report

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

0.71 Carat Loose F / VS2 Round Brilliant Cut Diamond GIA Certified
0.71 Carat Loose F / VS2 Round Brilliant Cut Diamond GIA Certified

0.71 Carat Loose F / VS2 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

0.71 Carat Loose F / VS2 Round Brilliant Cut Diamond GIA Certified Diamond General Info GIA Report

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.14 Carat Loose H/ SI1 Round Brilliant Cut Diamond Gia Certified
1.14 Carat Loose H/ SI1 Round Brilliant Cut Diamond Gia Certified

1.14 Carat Loose H/ SI1 Round Brilliant Cut Diamond Gia Certified

Located in Sherman Oaks, CA

1.14 Carat Loose H/ SI1 Round Brilliant Cut Diamond GIA Certified Diamond General Info GIA Report

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

0.61 Carat Loose H/ Si1 Round Brilliant Cut Diamond Gia Certified
0.61 Carat Loose H/ Si1 Round Brilliant Cut Diamond Gia Certified

0.61 Carat Loose H/ Si1 Round Brilliant Cut Diamond Gia Certified

Located in Sherman Oaks, CA

0.61 Carat Loose H/ SI1 Round Brilliant Cut Diamond GIA Certified Diamond General Info GIA Report

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

0.59 Carat Loose F/ SI1 Round Brilliant Cut Diamond GIA Certified
0.59 Carat Loose F/ SI1 Round Brilliant Cut Diamond GIA Certified

0.59 Carat Loose F/ SI1 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

0.59 Carat Loose F/ SI1 Round Brilliant Cut Diamond GIA Certified Diamond General Info GIA Report

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

0.77 Carat Loose F/ SI2 Round Brilliant Cut Diamond GIA Certified
0.77 Carat Loose F/ SI2 Round Brilliant Cut Diamond GIA Certified

0.77 Carat Loose F/ SI2 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

0.77 Carat Loose F/ SI2 Round Brilliant Cut Diamond GIA Certified Diamond General Info GIA Report

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

0.94 Carat Loose I/ VS2 Round Brilliant Cut Diamond GIA Certified
0.94 Carat Loose I/ VS2 Round Brilliant Cut Diamond GIA Certified

0.94 Carat Loose I/ VS2 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

0.94 Carat Loose I/ VS2 Round Brilliant Cut Diamond GIA Certified Diamond General Info GIA Report

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.28 Carat Loose J / SI2 Round Brilliant Cut Diamond GIA Certified
1.28 Carat Loose J / SI2 Round Brilliant Cut Diamond GIA Certified

1.28 Carat Loose J / SI2 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

1.28 Carat Loose J / SI2 Round Brilliant Cut Diamond GIA Certified Diamond General Info GIA Report

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

2.00 Carat Loose G / VS1 Round Brilliant Cut Diamond GIA Certified
2.00 Carat Loose G / VS1 Round Brilliant Cut Diamond GIA Certified

2.00 Carat Loose G / VS1 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

Diamond General Info Diamond Cut: Round Brilliant Measurements:8.07 x 7.92 - 5.05 mm Diamond

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.39 Carat Loose H / VS1 Round Brilliant Cut Diamond GIA Certified
1.39 Carat Loose H / VS1 Round Brilliant Cut Diamond GIA Certified

1.39 Carat Loose H / VS1 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

Diamond General Info Diamond Cut: Round Brilliant Measurements: 7.17 x 7.04 - 4.34 mm Diamond

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.00 Carat Loose K / VS2 Round Brilliant Cut Diamond GIA Certified
1.00 Carat Loose K / VS2 Round Brilliant Cut Diamond GIA Certified

1.00 Carat Loose K / VS2 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

Diamond General Info Diamond Cut: Round brilliant Measurements:6.25 x 6.32 - 3.98 mm Diamond

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

2.01 Carat Loose K / VS1 Round Brilliant Cut Diamond GIA Certified
2.01 Carat Loose K / VS1 Round Brilliant Cut Diamond GIA Certified

2.01 Carat Loose K / VS1 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

Diamond General Info Diamond Cut: Round Brilliant Measurements: 7.91 x 7.84 - 5.15 mm Diamond

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

0.58 Carat Loose J/ VS2 Round Brilliant Cut Diamond GIA Certified
0.58 Carat Loose J/ VS2 Round Brilliant Cut Diamond GIA Certified

0.58 Carat Loose J/ VS2 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

Diamond General Info Diamond Cut: Round Brilliant Measurements: 5.44 x 5.33 - 3.23 mm Diamond

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

3.02 Carat Loose L / VS2 Round Brilliant Cut Diamond GIA Certified
3.02 Carat Loose L / VS2 Round Brilliant Cut Diamond GIA Certified

3.02 Carat Loose L / VS2 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

Diamond General Info GIA Report Number: 2185397389 Diamond Cut: Round Brilliant Measurements: 8.98

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.52 Carat Loose H / VS2 Round Brilliant Cut Diamond Gia Certified
1.52 Carat Loose H / VS2 Round Brilliant Cut Diamond Gia Certified

1.52 Carat Loose H / VS2 Round Brilliant Cut Diamond Gia Certified

Located in Sherman Oaks, CA

Diamond General Info Diamond Cut: Round brilliant Measurements:7.10 x 7.22 - 4.70 mm Diamond

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.02 Carat Loose H / VS1 Round Brilliant Cut Diamond GIA Certified
1.02 Carat Loose H / VS1 Round Brilliant Cut Diamond GIA Certified

1.02 Carat Loose H / VS1 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

Diamond General Info Diamond Cut: Round brilliant Measurements:6.33 x 6.40 - 4.04 mm Diamond

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.58 Carat Loose D / VS1 Round Brilliant Cut Diamond GIA Certified
1.58 Carat Loose D / VS1 Round Brilliant Cut Diamond GIA Certified

1.58 Carat Loose D / VS1 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

Diamond General Info GIA Report Number: 5181451253 Diamond Cut: Round Brilliant Measurements:7.44

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.31 Carat Loose F / VS2 Round Brilliant Cut Diamond GiIA Certified
1.31 Carat Loose F / VS2 Round Brilliant Cut Diamond GiIA Certified

1.31 Carat Loose F / VS2 Round Brilliant Cut Diamond GiIA Certified

Located in Sherman Oaks, CA

Diamond General Info GIA Report Number: 1182391696 Diamond Cut: Round Brilliant Measurements: 7.12

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

0.75 Carat Loose D / VS2 Round Brilliant Cut Diamond GIA Certified
0.75 Carat Loose D / VS2 Round Brilliant Cut Diamond GIA Certified

0.75 Carat Loose D / VS2 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

Diamond General Info GIA Report Number: 2185305538 Diamond Cut: Round Brilliant Measurements: 5.71

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.16 Carat Loose K / VS1 Round Brilliant Cut Diamond GIA Certified
1.16 Carat Loose K / VS1 Round Brilliant Cut Diamond GIA Certified

1.16 Carat Loose K / VS1 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

Diamond General Info Diamond Cut: Round Brilliant Measurements: 6.67 x 6.63 - 4.17 mm Diamond

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

0.65 Carat Loose G / VS2 Round Brilliant Cut Diamond GIA Certified
0.65 Carat Loose G / VS2 Round Brilliant Cut Diamond GIA Certified

0.65 Carat Loose G / VS2 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

Diamond General Info GIA Report Number: 5182299001 Diamond Cut: Round Brilliant Measurements: 5.51

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.03 Carat Loose F / SI1 Round Brilliant Cut Diamond GIA Certified
1.03 Carat Loose F / SI1 Round Brilliant Cut Diamond GIA Certified

1.03 Carat Loose F / SI1 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

Diamond General Info GIA Report Number: 5181350673 Diamond Cut: Round Brilliant Measurements: 6.49

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.03 Carat Loose G / SI1 Round Brilliant Cut Diamond GIA Certified
1.03 Carat Loose G / SI1 Round Brilliant Cut Diamond GIA Certified

1.03 Carat Loose G / SI1 Round Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

Diamond General Info Diamond Cut: Round Measurements: 6.35 x 6.27 - 4.08 mm Diamond Grading

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.26 Carat Loose L / VVS2 Circular Brilliant Cut Diamond GIA Certified
1.26 Carat Loose L / VVS2 Circular Brilliant Cut Diamond GIA Certified

1.26 Carat Loose L / VVS2 Circular Brilliant Cut Diamond GIA Certified

Located in Sherman Oaks, CA

Diamond General Info GIA Report Number: 2185398628 Diamond Cut: Circular Brilliant Measurements

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

AIG Certified 0.74ct Natural Round Brilliant Diamond - Clarity Enhanced
AIG Certified 0.74ct Natural Round Brilliant Diamond - Clarity Enhanced

AIG Certified 0.74ct Natural Round Brilliant Diamond - Clarity Enhanced

By House of R&D

Located in Ramat Gan, Tel Aviv District

No Reserve Price! Shape: Round Brilliant Carat: 0.74ct Clarity: SI2* * This diamond has

Category

2010s Loose Gemstones

Materials

Diamond, Brown Diamond

AIG Certified 0.70ct Natural Round Brilliant Diamond - Clarity Enhanced
AIG Certified 0.70ct Natural Round Brilliant Diamond - Clarity Enhanced

AIG Certified 0.70ct Natural Round Brilliant Diamond - Clarity Enhanced

By House of R&D

Located in Ramat Gan, Tel Aviv District

No Reserve Price! Shape: Round Brilliant Carat: 0.70ct Clarity: SI1* * This diamond has

Category

2010s Loose Gemstones

Materials

Diamond, Brown Diamond

AIG Certified 0.60ct Natural Round Brilliant Diamond - Clarity Enhanced
AIG Certified 0.60ct Natural Round Brilliant Diamond - Clarity Enhanced

AIG Certified 0.60ct Natural Round Brilliant Diamond - Clarity Enhanced

By House of R&D

Located in Ramat Gan, Tel Aviv District

No Reserve Price! Shape: Round Brilliant Carat: 0.60ct Clarity: SI1* * This diamond has

Category

2010s Loose Gemstones

Materials

Diamond, Brown Diamond

AIG Certified 0.46ct Natural Round Brilliant Diamond - Clarity Enhanced
AIG Certified 0.46ct Natural Round Brilliant Diamond - Clarity Enhanced

AIG Certified 0.46ct Natural Round Brilliant Diamond - Clarity Enhanced

By House of R&D

Located in Ramat Gan, Tel Aviv District

No Reserve Price! Shape: Round Brilliant Carat: 0.46ct Clarity: VS2* * This diamond has

Category

2010s Loose Gemstones

Materials

Diamond, Brown Diamond

AIG Certified 0.69ct Natural Round Brilliant Diamond - Clarity Enhanced
AIG Certified 0.69ct Natural Round Brilliant Diamond - Clarity Enhanced

AIG Certified 0.69ct Natural Round Brilliant Diamond - Clarity Enhanced

By House of R&D

Located in Ramat Gan, Tel Aviv District

No Reserve Price! Shape: Round Brilliant Carat: 0.69ct Clarity: SI1* * This diamond has

Category

2010s Loose Gemstones

Materials

Diamond, Yellow Diamond

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Loose Round Brilliant Diamond For Sale on 1stDibs

Surely you’ll find the exact loose round brilliant diamond you’re seeking on 1stDibs — we’ve got a vast assortment for sale. You can easily find a 21 antique edition and 38 modern creations to choose from as well. You’re likely to find the perfect loose round brilliant diamond among the distinctive items we have available, which includes versions made as long ago as the 18th Century as well as those produced as recently as the 21st Century. Creating a loose round brilliant diamond has been a part of the legacy of many jewelers, but those produced by TJD, J. Birnbach and Tamir are consistently popular. Today, if you’re looking for a round cut version of this piece and are unable to find the perfect match, our selection also includes alternatives. Most of our loose round brilliant diamond for sale are for women, but there are 51 pieces available to browse for men.

How Much is a Loose Round Brilliant Diamond?

On average, a loose round brilliant diamond at 1stDibs sells for $3,500, while they’re typically $720 on the low end and $575,000 for the highest priced versions of this item.

The Legacy of Diamond in Jewelry Design

Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And diamonds and diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.

From “A Diamond Is Forever” to “Diamonds Are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim diamonds for themselves, but just about everyone wants this kind of sparkle in their lives!

There are several factors that set diamonds apart from other stones, and these points are important to our gem education.

Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath the earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.

In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamond's value decreases if there are many blemishes or inclusions), color (the less color the higher the grade), cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better).

When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And on 1stDibs, a range of buying guides can be found for those in the market for antique engagement ringsvintage engagement rings or Art Deco engagement rings

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.  

Finding the Right Loose-gemstones for You

Are you shopping for diamonds and other loose gemstones to create your own custom jewelry? 

Why might you purchase a diamond or gemstone “loose” — that is, on its own, not mounted in a piece of jewelry? Perhaps you’re a connoisseur looking to acquire a unique investment. The scarcity of high-quality colored diamonds, for instance, especially pink diamonds, means that their value increases over time; the same is true of rare Kashmir sapphires and Burmese rubies. Far rarer than diamonds, Paraiba tourmaline, discovered only in the 1980s, is treasured as much for its extraordinary color as its scarcity, both of which contribute to its high value.

A more common scenario would be that you’re hoping to create a very special piece of custom jewelry, such as an engagement ring or a milestone-birthday present, and want to personally select the most beautiful, unusual, or ultra-rare stone you can find and afford. Doing so adds to the romance and substance of the gift and can be a part of the story told as the jewel is passed from generation to generation.

If this sounds like you, read on for tips on becoming one of the world’s savviest gem hunters.

Educate yourself: When buying any piece of gem-set fine jewelry, you should familiarize yourself with the factors that determine a stone’s price. This will enable you to streamline your search for the perfect gem and have intelligent, productive conversations with sellers.

There is a wealth of information online, such as our diamond-buying guide and this overview of colored gemstones for engagement rings. The buying guides of the Gemological Institute of America (GIA), searchable by stone type, are also a widely trusted source for consumers venturing into the world of diamonds and gems for the first time.

Vet your vendor: If you peruse 1stDibs with any regularity, you know there is no shortage of vendors who deal in top-quality loose gemstones. (Read about our vetted sellers.) Finding a trustworthy, established dealer may be as easy as getting a recommendation from friends or family. And, although it may sound obvious, it pays to Google your candidates — and consult customer reviews — before making contact.

Harakh Mehta, designer and founder of the Mumbai, India–based fine-jewelry brand Harakh, has an innate understanding of proper client relations, especially when the customer is in unfamiliar territory. “Start chatting with the dealer, get to know them better," he says. "It’s very important to establish a comfort level. We never push a sale, as we want it to be a carefully considered purchase. So, if the client is not in a rush, we do it over a few virtual meetings or phone calls.”

Request documentation: The best dealers go to great lengths to furnish clients with documents verifying the quality rating, natural origin and provenance of a stone — showing, for example, that loose emerald hails from the famous Muzo mine in Colombia — and disclosing any treatments applied to enhance its appearance. (And who doesn't love emerald jewelry? The most valuable emeralds are the ones that have a deep bluish-green to true green color and no visible inclusions.)

If no grading report is available for a stone you are interested in, the dealer should be able to provide an authenticity document, such as an appraisal or info sheet, that has been signed by an in-house gemologist or professional appraiser. Google those names, too, for extra peace of mind.

Ask for videos and visuals: When transacting with a gem dealer online, you should always request real-time videos and photographs, since professional photos of a stone, usually on a white background, have likely been retouched for optimal presentation.

Read more about how to buy loose gemstones and find your dream gems today on 1stDibs.