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J. Birnbach Loose GIA Certified 3.25 Carat D SI1 Round Brilliant Cut Diamond
By J. Birnbach
Located in New York, NY
This beautifully fashioned stone from the J. Birnbach vault is a 3.25 carat round brilliant cut
Category

21st Century and Contemporary Unknown Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond - Lozenge 4.51ct GIA J SI2 Solitaire
Located in Greensboro, NC
Carat: 4.51ct Cut: Lozenge Color: J Clarity: SI2 Certified by: GIA Report Number: 2225721834
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond - Round Brilliant .90ct GIA J VS2 Solitaire
Located in Greensboro, NC
Carat: .90ct Cut: Round Brilliant Color: J Clarity: VS2 Certified by: GIA Report Number
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

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 - Princess .47ct EGL USA J SI3 Solitaire
Located in Greensboro, NC
Carat: .47ct Cut: Princess Color: J Clarity: SI3 Size: (mm) 4.52 x 3.95 x 3.09 Certified by: EGL
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

0.54 Carat Loose J/ VS2 Princess Cut Diamond GIA Certified
Located in Sherman Oaks, CA
0.54 Carat Loose J/ VS2 Princess Cut Diamond GIA Certified Diamond General Info GIA Report Number
Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

0.54 Carat Loose J/ VS2 Princess Cut Diamond GIA Certified
0.54 Carat Loose J/ VS2 Princess Cut Diamond GIA Certified
Free Shipping
W 0.18 in D 0.13 in L 0.18 in
Loose Diamond - Round Brilliant Cut .37ct GIA J SI2 Solitaire
Located in Greensboro, NC
Carat: .37ct Cut: Round Brilliant Color: J Clarity: SI2 Certified by: GIA Report Number
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond - Round Brilliant Cut .46ct GIA J VVSI Solitaire
Located in Greensboro, NC
Weight: .46ct Cut: Round Brilliant Color: J Clarity: VVS1 Size (mm): 4.88 - 4.94 x 3.06 Certified
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose 1.83ct Pear Cut GIA Cert Natural Diamond SI1/J i15047
Located in Toledo, OH
Sparkling loose diamond. SI1 clarity with J color. GIA number 6237154289. 10.7mm by 6.6mm by 4.2mm
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Loose Diamond, Princess Cut 1.06 Carat GIA J SI2 Solitaire
Located in Greensboro, NC
Weight: 1.06ct Cut: Princess Color: J Clarity: SI2 Dimensions (mm): 5.58 x 5.38 x 4.07 GIA
Category

21st Century and Contemporary Unknown Loose Gemstones

Materials

Diamond

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

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

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

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

1.07 Carat Loose J / I1 Square Modified Brilliant Diamond GIA Certified
Located in Sherman Oaks, CA
Diamond General Info Diamond Cut: Princess Cut Measurements: 6.29 x 6.16 - 4.16 Diamond
Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

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

1.00 Carat Loose Diamond, Radiant Cut GIA Graded I1 J Solitaire
Located in Greensboro, NC
Shape/Cut: Radiant Clarity: I1 Color: J Dimensions (mm): 5.86 x 5.01 x 3.66 Weight: 1.00ct
Category

21st Century and Contemporary Unknown Loose Gemstones

Materials

Diamond

.55 Carat Loose Diamond, Round Brilliant Cut GIA Graded SI1 J Solitaire
Located in Greensboro, NC
Shape/Cut: Round Brilliant Clarity: SI1 Color: J Dimensions (mm): 5.21 - 5.29 x 3.24 Weight
Category

21st Century and Contemporary Unknown Loose Gemstones

Materials

Diamond

Set of 2 Loose Diamonds - Shield Cut .35ctw I-J VS2 Matched Pair
Located in Greensboro, NC
Total Carats: .35ctw Cut: Shield Color: I - J Clarity: VS2 Sizes (mm): 4.41 x 2.83 x 2.05 4.44
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

TJD IGI Certified 1.04Carat Round Brilliant Cut Loose Diamond J Color IF Clarity
By TJD
Located in New York, NY
Weight: 1.04ct Cut: Emerald Cut Color: J Clarity: IF
Category

21st Century and Contemporary Modern Loose Gemstones

Materials

Diamond

TJD GIA Certified 1.01 Carat Emerald Cut Loose Diamond, J Color IF ClarityTJD GI
By TJD
Located in New York, NY
Weight: 1.01ct Cut: Emerald Cut Color: J Clarity: IF
Category

21st Century and Contemporary Modern Loose Gemstones

Materials

Diamond, Emerald

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

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

IGI Certified 0.92 Carat Round Brilliant Cut Loose Diamond
IGI Certified 0.92 Carat Round Brilliant Cut Loose Diamond
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W 0.24 in D 0.16 in L 0.24 in
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

Certified 3, 01 Carat Diamond J VS1
Located in Monte Carlo, MC
Gorgeous 3,01 carat J VS1 diamond. The stone is very nicely cut and rather well spread ( it looks
Category

21st Century and Contemporary Contemporary Loose Gemstones

Materials

Diamond

Certified 3, 01 Carat Diamond J VS1
Certified 3, 01 Carat Diamond J VS1
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W 0.38 in L 0.38 in
Alexander Beverly Hills GIA 6.03ct Radiant Diamond J SI1
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose radiant cut diamond, GIA certified. Sold as loose diamond but can easily be made
Category

2010s Contemporary Loose Gemstones

Materials

Diamond, White Diamond

Alexander GIA Certified 9.15 Carat J VVS2 Emerald Cut Diamond
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose emerald cut diamond, GIA certified. Sold as loose diamond but can easily be made
Category

2010s Modern Loose Gemstones

Materials

Diamond, White Diamond

Luxurious 0.51 Carat Hexagonal Cut J VS2 Natural Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC57271 Stone Shape: Hexagonal Cut Diamond Weight: 0.51 CT Clarity: VS2
Category

21st Century and Contemporary Modern Loose Gemstones

Materials

Diamond

Luxurious 0.51 Carat Hexagonal Cut J VS2 Natural Diamond
Luxurious 0.51 Carat Hexagonal Cut J VS2 Natural Diamond
Free Shipping
W 0.02 in D 0.01 in L 0.03 in
Alexander GIA Certified 5.16 Carat J VS2 Pear Cut Diamond
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Stunning loose emerald cut diamonds, GIA certified. Sold as loose diamond but can easily be made
Category

2010s Modern Loose Gemstones

Materials

Diamond

Sparkling 1 pc Natural Diamond 1.11 ct Round J VS Certified
Located in Delhi, DL
Sparkling natural cut round brilliant diamond in a 1.11 carat J VS very good cut. This diamond
Category

2010s Indian Loose Gemstones

Materials

Diamond

GIA Certified 0.97 Carat Buddha Cut Brilliant J SI2 Natural Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC54742 Stone Shape: BUDDHA MODIFIED BRILLIANT Diamond Weight: 0.97ct
Category

21st Century and Contemporary Loose Gemstones

Materials

White Diamond, Blue Diamond, Diamond

1 pc Natural Diamond - 0.71 ct - Cushion - J - VS1- GIA Certificate
Located in רמת גן, IL
Natural cushion modified brilliant diamond in a 0.71 carat J VS1 with excellent cut and extremely
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 1.70 Ct, Cushion, J, VS2, GIA Certificate
Located in רמת גן, IL
Natural diamond in a 1.70 carat J VS2 Ideal cut Cushion with GIA Certificate and laser inscription
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.75 Ct, Cushion, J, SI1, GIA Certificate
Located in רמת גן, IL
A natural diamond in 0.75 carat J SI1 Cushion Shaped with maximum shine and sparkles, sealed in a
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1 pc Natural Diamond with 1.63 ct J VS1 - GIA Certificate
Located in רמת גן, IL
1 pcs Diamond - 1.63 ct - Round - J - VS1 GIA 1 Sparkling natural cut round brilliant diamond in a
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1 pc Natural Diamond 0.75 ct Cushion J SI1 GIA Certificate
Located in רמת גן, IL
1 Sparkling natural cushion modified cut diamond in a 0.75 carat J SI1 with excellent cut. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Natural Cushion Cut Diamond in a 1.70 Carat J VS2, GIA Certificate
Located in רמת גן, IL
Natural diamond in a 1.70 carat J VS2 Ideal cut Cushion with GIA Certificate and laser inscription
Category

2010s Israeli Loose Gemstones

Materials

Diamond

LFG Certified 2.12 J/VVS2 Antique Old Mine Cushion Brilliant Cut Diamond
Located in Paris, FR
This Antique Old Mine Cushion Brilliant cut Diamond weights 2.12 carats with a J color (Beautiful
Category

Vintage 1910s Unknown Belle Époque Loose Gemstones

Materials

Diamond

Stunning 1 pc Natural Diamond with 0.52 ct Heart J VS1 GIA Certificate
Located in רמת גן, IL
1Sparkling natural Heart Brilliant cut diamond in a 0.52 carat J VS1 Excellent cut. This diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1 pc Natural Diamond 0.50 ct Square J IF 'Flawless' GIA Certificate
Located in רמת גן, IL
1 Sparkling natural Square Modified cut diamond in a 0.5 carat J IF Excellent cut. This diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Radiant 1.20ct Ideal Cut Diamond - GIA Certified
Located in רמת גן, IL
Radiant 1.20ct Ideal Cut Diamond - GIA Certified Presenting a splendid 1.20-carat square-cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

GIA Certified 1.71 Carat Round Brilliant Natural Diamond (Engagement Rings)
Located in London, GB
GIA Certified 1.71 Carat Round Brilliant Natural Diamond Loose Stone (Customization Option) Color
Category

2010s Loose Gemstones

Materials

Diamond

GIA Certified 1.01 Carat Round Brilliant Natural Diamond (Engagement Rings)
Located in London, GB
GIA Certified 1.01 Carat Round Brilliant Natural Diamond Loose Stone (Customization Option) Color
Category

2010s Loose Gemstones

Materials

Diamond

GIA Certified 1.78 Carat Round Brilliant Natural Diamond (Engagement Rings)
Located in London, GB
GIA Certified 1.78 Carat Round Brilliant Diamond Loose Stone (Customization Option) Color: J
Category

2010s Loose Gemstones

Materials

Diamond

Captivating 0.90 carat Square Cut Brilliant Diamond
Located in רמת גן, IL
Natural cut Square diamond in a .90 carat J VVS1 cut. This diamond comes with GIA Certificate and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Exceptional 2.00ct Ideal Cut Diamond Pair - GIA Certified
Located in רמת גן, IL
Exceptional 2.00ct Ideal Cut Diamond Pair - GIA Certified Introducing a remarkable pair of square
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Classic 1.50ct Ideal Cut Emerald-Cut Diamond - GIA Certified
Located in רמת גן, IL
Classic 1.50ct Ideal Cut Emerald-Cut Diamond - GIA Certified Unveil the sophisticated charm of
Category

2010s Israeli Loose Gemstones

Materials

Diamond

IGI certified 4.15 carats of triple XXX of natural diamond
Located in Massafra, IT
, excellent symmetry , fluorescence none. Diamond is in round brilliant cut of 4.15 carats, J color and VS1
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

GIA Certified 3.58 Carat Old Cut Natural Diamonds (Customization Option)
Located in London, GB
European brilliant cut diamond GIA Certified, 1.79 Carat, J, VS1 II. Old European brilliant cut diamond
Category

2010s Loose Gemstones

Materials

Diamond

HRDAntwerp certified 1.00 carat Cushion Shape Natural Diamond
By S E A General Trading LLC
Located in Dubai, UAE
We are natural diamond production company located in Dubai. Weight: 1.00ct Shape: Cushion Color
Category

21st Century and Contemporary Emirian Modern Loose Gemstones

Materials

Diamond, 18k Gold

HRDAntwerp certified 1.00 carat Cushion Shape Natural Diamond
HRDAntwerp certified 1.00 carat Cushion Shape Natural Diamond
Free Shipping
W 0.22 in D 0.15 in L 0.23 in
Dazzling 1 Pc Natural Diamond 1.01 Carat Cushion D VVS2 GIA Certificate
Located in רמת גן, IL
One shimmering and sparkling modified Brilliant Cushion cut diamond in a 1.01 carat D VVS2 with
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1pc Natural Diamond w/ 1.00 ct Cushion F VVS2 GIA Certificate
Located in רמת גן, IL
One sparkling cushion modified brilliant cut natural diamond in a 1-carat F VVS2 with excellent
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1pc Natural Diamond w/ 0.55 ct Round D IF IGI Certificate
Located in רמת גן, IL
One Sparkling and shiny round brilliant cut natural diamond in a 0.55 carat D IF with excellent cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1 Pc Natural Diamond with 0.50 Carat Round, D IF IGI Certificate
Located in רמת גן, IL
One shiny and sparkling round brilliant cut natural diamond in a 0.5 carat D IF with excellent cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 4.01 ct - Heart - D (colourless) - VS2- GIA Certificate
Located in רמת גן, IL
Ideal cut and Beautiful rare cutted heart Diamond in a 4.01 carat t with the Highest color D with
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 8.04 ct - Square Emerald / Asscher - F - VVS1- GIA Cert
Located in רמת גן, IL
Ideal cut and Beautiful Asher or square emerald Diamond in a 8.04 carat t with a-rare size and Cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Marina J. Art Deco Inspired Pearl & Black Onyx Sautoir with Graduated Tassels
By Marina J.
Located in Los Angeles, CA
Gorgeous Marina J. hand woven Sautoir. This piece features perfectly round Pearls which display a
Category

21st Century and Contemporary American Artisan Beaded Necklaces

Materials

Onyx, Pearl, Gold, 14k Gold, Yellow Gold

Marina J. Art Deco Inspired Pearl & Black Onyx Sautoir with Graduated Tassels
By Marina J.
Located in Los Angeles, CA
Gorgeous Marina J. hand woven Sautoir. This piece features perfectly round Pearls which display a
Category

Vintage 1920s American Art Deco Beaded Necklaces

Materials

Onyx, Pearl, Gold, 14k Gold, White Gold

1930 Nordic Cufflinks J.Tostrup White Guilloche Enamel 925 Silver /8.5gr
Located in SE
Norwegian cuff-links by J. Tostrup, Art Deco Style and Period. Gilt Silver and enamel. Both sides
Category

Vintage 1930s Norwegian Art Deco Cufflinks

Materials

Silver, Enamel

Victorian Vintage Turquoise and Diamond Navette Ring
Located in Santa Barbara, CA
perfect color and surrounded by 40 twinkling rose cut diamonds. The shape is loosely translated from the
Category

Antique Late 19th Century Victorian Cocktail Rings

Materials

Diamond, Turquoise, 18k Gold, Rose Gold, Silver

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Loose J Diamond For Sale on 1stDibs

Surely you’ll find the exact loose j diamond you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Each design created in this style — which was crafted with great care and often made from Gold, Silver and Sterling Silver — can elevate any look. You can easily find a 40 antique edition and 75 modern creations to choose from as well. If you’re looking for a loose j diamond from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 20th Century while another version may have been produced as recently as the 21st Century. For this particular accessory, there are many different carat weights to choose from, but .5 Carat and 1 Carat versions are of considerable interest. Creating a loose j diamond has been a part of the legacy of many jewelers, but those produced by Tamir, Antinori Fine Jewels and Gemma By WPD are consistently popular. See these pages for a round cut iteration of this accessory, while there are also oval cut cut and cushion cut cut versions available here, too. When shopping for a loose j diamond, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a Loose J Diamond?

The price for a loose j diamond starts at $400 and tops out at $1,800,000 with these more-jewelry-watches, on average, selling for $3,600.
Questions About Loose J Diamond
  • 1stDibs ExpertDecember 12, 2023
    Whether Cartier will set a loose diamond depends on the circumstances. If you purchased a piece of Cartier diamond jewelry and the stone has come loose, contact customer service for assistance with repairs. Cartier will usually not place a loose diamond that you purchased elsewhere in one of their settings. Find a wide range of Cartier diamond jewelry on 1stDibs.