Skip to main content

Modified Diamond

to
174
322
173
179
59
139
533
90
81
24
19
14
44
484
1
3
1
1
1
3
347
190
5
180
61
54
41
34
to
90
21
10
9
8
128
55
24
5
2
1
1
539
3
423
28
GIA Certified 0.96 Carat Square Brilliant D Color VS2 Clarity Natural Diamond
GIA Certified 0.96 Carat Square Brilliant D Color VS2 Clarity Natural Diamond

GIA Certified 0.96 Carat Square Brilliant D Color VS2 Clarity Natural Diamond

Located in New York, NY

ITEM DESCRIPTION ID #: NY56227 Stone Shape: SQUARE MODIFIED BRILLIANT Diamond Weight: 0.96ct Clarity: VS1 Color: D Cut: Excellent Measurements: 5.04 x 5.03 x 3.70 mm Depth %: 73.6% ...

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond, White Diamond

GIA Certified 0.90 Carat Oval Brilliant D Color Vs2 Clarity Natural Diamond
GIA Certified 0.90 Carat Oval Brilliant D Color Vs2 Clarity Natural Diamond

GIA Certified 0.90 Carat Oval Brilliant D Color Vs2 Clarity Natural Diamond

Located in New York, NY

ITEM DESCRIPTION ID #: NYC56500 Stone Shape: OVAL MODIFIED BRILLIANT Diamond Weight: 0.90ct Clarity: VS2 Color: D Cut: Excellent Measurements: 6.99 x 5.13 x 3.58 mm Depth %: 69.9% ...

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond, White Diamond

GIA Certified 2.01 Carat J SI1 Natural Cushion Diamond Solitaire Engagement Ring
GIA Certified 2.01 Carat J SI1 Natural Cushion Diamond Solitaire Engagement Ring

GIA Certified 2.01 Carat J SI1 Natural Cushion Diamond Solitaire Engagement Ring

Located in Baltimore, MD

GIA Certified 2.01 Carat J SI1 Natural Cushion Diamond Solitaire Yellow Gold Engagement Ring GIA report number: 6233904918 Diamond: 2.01 carat J SI1 cushion modified brilliant natura...

Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, 14k Gold, Yellow Gold

Dazzling 1pc Natural Diamond w/ 1.00 ct Cushion F VVS2 GIA Certificate
Dazzling 1pc Natural Diamond w/ 1.00 ct Cushion F VVS2 GIA Certificate

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 polish and very good symmetry.

Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sophisticated 6.24ct Diamond Pave Ring in 18K Yellow Gold - GIA Certified
Sophisticated 6.24ct Diamond Pave Ring in 18K Yellow Gold - GIA Certified

Sophisticated 6.24ct Diamond Pave Ring in 18K Yellow Gold - GIA Certified

Located in רמת גן, IL

This GIA-certified ring centers on a 5.93ct square modified natural diamond, graded N color and VVS2 clarity, radiating bold brilliance from its four-prong setting.

Category

2010s Singaporean Bridal Rings

Materials

Diamond, 18k Gold, Yellow Gold

Scott Gauthier Oval Cut Aquamarine Ring with Pavé Diamonds 14 Karat White Gold
Scott Gauthier Oval Cut Aquamarine Ring with Pavé Diamonds 14 Karat White Gold

Scott Gauthier Oval Cut Aquamarine Ring with Pavé Diamonds 14 Karat White Gold

By Scott Gauthier

Located in Scottsdale, AZ

Metal Type: 14 Karat White Gold Gemstones: Aquamarine (Oval Modified Brilliant) / Diamond (Round Brilliant Cut) Ring Size: 5 Band Width: 5mm Item Weight: 12 grams Estate Condition: V...

Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, Gold, 14k Gold, White Gold

Dazzling 1 Pc Natural Diamond 1.01 Carat Cushion D VVS2 GIA Certificate
Dazzling 1 Pc Natural Diamond 1.01 Carat Cushion D VVS2 GIA Certificate

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 excellent polish and very good symmetry.

Category

2010s Israeli Loose Gemstones

Materials

Diamond

Vintage Diamond Sapphire Platinum  18 KT Cluster Earrings
Vintage Diamond Sapphire Platinum  18 KT Cluster Earrings

Vintage Diamond Sapphire Platinum 18 KT Cluster Earrings

Located in Napoli, IT

Art Deco Diamond Sapphire latter modified into earclips, top are of solid Platinum, ear back clips are 18 KT white gold Approx. 8.40 Ct of midnight Blue natural untreated Sapphires –...

Category

Vintage 1920s European Art Deco Clip-on Earrings

Materials

Diamond, Sapphire, 18k Gold, Platinum

GIA Certified 0.42 Carat Light Pink Brown SI2 Clarity Diamond
GIA Certified 0.42 Carat Light Pink Brown SI2 Clarity Diamond

GIA Certified 0.42 Carat Light Pink Brown SI2 Clarity Diamond

Located in บางรัก, TH

Our oval shaped diamond is a modified round cut that features an elongated, oval form with smooth, rounded edges.

Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA 1.20 Carat Fancy Brownish Orangy Yellow Oval Cut VS2 Natural Loose Diamond
GIA 1.20 Carat Fancy Brownish Orangy Yellow Oval Cut VS2 Natural Loose Diamond

GIA 1.20 Carat Fancy Brownish Orangy Yellow Oval Cut VS2 Natural Loose Diamond

Located in Miami, FL

GIA-certified 1.20 carat natural fancy color diamond graded Fancy Brownish Orangy Yellow with VS2 clarity, oval modified brilliant cut measuring 8.43 x 6.21 x 3.31mm, offered as a lo...

Category

21st Century and Contemporary Contemporary Loose Gemstones

Materials

Brown Diamond

Tacori GIA Princess 1.32 Diamond Platinum Split Shank Engagement Ring
Tacori GIA Princess 1.32 Diamond Platinum Split Shank Engagement Ring

Tacori GIA Princess 1.32 Diamond Platinum Split Shank Engagement Ring

By Tacori

Located in Miami, FL

Showcasing a GIA lab-reported square modified brilliant, prong-set diamond weighing 1.00 carats, graded E color and VS1 clarity.

Category

21st Century and Contemporary Modern Engagement Rings

Materials

Diamond, Platinum

GIA 1.41 Carat Brown Yellow Cushion Diamond Gold Platinum Engagement Ring
GIA 1.41 Carat Brown Yellow Cushion Diamond Gold Platinum Engagement Ring

GIA 1.41 Carat Brown Yellow Cushion Diamond Gold Platinum Engagement Ring

Located in Stamford, CT

Handmade three-stone Platinum setting with an 18k yellow gold crown. Circa 1950. 1 modified square fancy brownish yellow diamond, approx. total weight 1.41cts, SI1, GIA certificate ...

Category

Mid-20th Century Engagement Rings

Materials

Diamond, Yellow Diamond, Brown Diamond, Gold, 18k Gold, Yellow Gold, Pla...

Antique Diamond and Mother of Pearl Stud Set
Antique Diamond and Mother of Pearl Stud Set

Antique Diamond and Mother of Pearl Stud Set

Located in Riverdale, NY

High quality diamonds are antique modified square cuts on the borders and each button is centered by an old mine cut diamond.

Category

Early 20th Century French Edwardian Cufflinks

Materials

Diamond, 18k Gold, Platinum

Sparkling 1 pc Natural Diamond with 0.90 ct D IF, IGI Certificate
Sparkling 1 pc Natural Diamond with 0.90 ct D IF, IGI Certificate

Sparkling 1 pc Natural Diamond with 0.90 ct D IF, IGI Certificate

Located in רמת גן, IL

1 pcs Diamond - 0.90 ct - Cushion - D (colourless) - IF (flawless) IGI Natural cushion-modified brilliant diamond in a 0.90 carat D IF with Beautiful cut and shine.

Category

2010s Israeli Loose Gemstones

Materials

Diamond

Tiffany & Co. Legacy Cushion Diamond 1.33 Tcw Halo Engagement Ring Platinum
Tiffany & Co. Legacy Cushion Diamond 1.33 Tcw Halo Engagement Ring Platinum

Tiffany & Co. Legacy Cushion Diamond 1.33 Tcw Halo Engagement Ring Platinum

By Tiffany & Co.

Located in San Diego, CA

Tiffany & Co. LEGACY Cushion Diamond Engagement Ring Style: Halo Ref. number: 24971589/J10100317 Metal: Platinum PT950 Size: 6 TCW: 1.33 tcw Main Diamond: Cushion Modified Bri...

Category

2010s Engagement Rings

Materials

Diamond, Platinum

Sapphire Étoile - Natural Pink Sapphire No Heat set with Diamonds in 3 StoneRing
Sapphire Étoile - Natural Pink Sapphire No Heat set with Diamonds in 3 StoneRing

Sapphire Étoile - Natural Pink Sapphire No Heat set with Diamonds in 3 StoneRing

Located in Hong Kong, HK

Framing this ethereal sapphire are two modified D‑shaped diamonds (0.27 cts). Their crisp white brilliance adds a subtle celestial sparkle, enhancing the sapphire’s dreamy hue withou...

Category

2010s Hong Kong Art Deco Engagement Rings

Materials

Diamond, Pink Sapphire, 18k Gold

1 pc Natural Diamond - 0.71 ct - Cushion - J - VS1- GIA Certificate
1 pc Natural Diamond - 0.71 ct - Cushion - J - VS1- GIA Certificate

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 shine.

Category

2010s Israeli Loose Gemstones

Materials

Diamond

Earrings with 26.05 ct Old European Cut Diamonds, Gerhard Lährm, Salzburg c.1985
Earrings with 26.05 ct Old European Cut Diamonds, Gerhard Lährm, Salzburg c.1985

Earrings with 26.05 ct Old European Cut Diamonds, Gerhard Lährm, Salzburg c.1985

Located in Berlin, DE

Material: One Old European cut diamond, 12.61 ct, 15.10–15.43 x 8.89 mm, L, vs2 One Old European cut diamond, 11.59 ct, measured 15.48–15.73 x 8.12 mm, L, vs1 Two modified old Europ...

Category

Vintage 1980s Austrian Belle Époque Dangle Earrings

Materials

Diamond, 18k Gold, White Gold

GIA 5.84 Carats Colombian Emerald & Diamond 3-Stone Platinum Ring
GIA 5.84 Carats Colombian Emerald & Diamond 3-Stone Platinum Ring

GIA 5.84 Carats Colombian Emerald & Diamond 3-Stone Platinum Ring

By Dover Jewelry

Located in Miami, FL

Dimensions: 14.32mm x 9.61mm x 4.57mm Weight: Approx. 4.91 carats Side Stones: Two Modified Shield Step-Cut Diamonds Combined Weight: 1.85 carats (0.93ct and 0.92ct) Grading: D Color...

Category

21st Century and Contemporary American Art Deco Three-Stone Rings

Materials

Diamond, Emerald, Platinum

GIA Certified 4 Carat D Color Diamond Yellow Gold Bezel Set Ring
GIA Certified 4 Carat D Color Diamond Yellow Gold Bezel Set Ring

GIA Certified 4 Carat D Color Diamond Yellow Gold Bezel Set Ring

By Antinori Fine Jewels

Located in Chicago, IL

An elegant and distinctive diamond ring featuring a GIA certified 4.01 carat cut-cornered rectangular modified brilliant cut diamond, graded D color and VS2 clarity.

Category

2010s American Art Deco Solitaire Rings

Materials

Diamond, Yellow Gold

GIA 14k Rose Gold Natural 4.06 Carat Horse Diamond Halo Pendant Necklace
GIA 14k Rose Gold Natural 4.06 Carat Horse Diamond Halo Pendant Necklace

GIA 14k Rose Gold Natural 4.06 Carat Horse Diamond Halo Pendant Necklace

By Raymond Lee Jewelers

Located in Boca Raton, FL

Material: 14 Karat Rose Gold Diamond Details: GIA Certified 4.06 Carat Modified Brilliant Horse Shaped Diamond.

Category

21st Century and Contemporary American Modern Pendant Necklaces

Materials

Brown Diamond, Diamond, Pink Diamond, 14k Gold, Rose Gold, Gold

29.30 Carat Oval Cut Aquamarine Pendant with Diamonds in 14 Karat White Gold
29.30 Carat Oval Cut Aquamarine Pendant with Diamonds in 14 Karat White Gold

29.30 Carat Oval Cut Aquamarine Pendant with Diamonds in 14 Karat White Gold

Located in Scottsdale, AZ

Metal Type: 14 Karat White Gold Gemstones: Aquamarine (Oval Modified Brilliant) / Diamond (Round Brilliant & Baguette) Item Weight: 12.9 grams Pendant Dimensions: 38.6mm x 25mm E...

Category

21st Century and Contemporary Contemporary Necklace Enhancers

Materials

Aquamarine, Diamond, Gold, 14k Gold, White Gold

GIA Certified 3 Carat VVS2 Fancy Vivid Yellow Diamond Engagement Ring
GIA Certified 3 Carat VVS2 Fancy Vivid Yellow Diamond Engagement Ring

GIA Certified 3 Carat VVS2 Fancy Vivid Yellow Diamond Engagement Ring

Located in Chicago, IL

This exquisite engagement ring features a stunning 3.01-carat cushion modified brilliant diamond, GIA certified, showcasing an exceptional Fancy Vivid Yellow color with even distribu...

Category

2010s American Contemporary Engagement Rings

Materials

Yellow Diamond, Diamond, Yellow Gold, White Gold, 18k Gold

Vintage 14K White Gold Sapphire Diamond Cluster Ring 1.30 Carats
Vintage 14K White Gold Sapphire Diamond Cluster Ring 1.30 Carats

Vintage 14K White Gold Sapphire Diamond Cluster Ring 1.30 Carats

Located in Miami, FL

Metal: 14K White Gold Signature: Signed “JL” Center Stone: Sapphire, approx. 0.88 carats (cushion / modified square cut) Diamonds: 36 round brilliant-cut diamonds, approx. 1.30 carat...

Category

Late 20th Century American Contemporary Cluster Rings

Materials

Diamond, Sapphire, 14k Gold, White Gold

20.5 Carats Champagne Topaz with Diamond Paradizia Ring
20.5 Carats Champagne Topaz with Diamond Paradizia Ring

20.5 Carats Champagne Topaz with Diamond Paradizia Ring

By Paradizia

Located in Laguna Beach, CA

Description Outstanding and magnificent large Champagne Topaz framed in a Victorian inspired pave diamond design. Item #R166 Materials and Weight Topaz, 20.5 carats, 20.5x13x9.8, mo...

Category

21st Century and Contemporary American Artisan Cocktail Rings

Materials

Diamond, Topaz, 14k Gold, Gold Plate, Yellow Gold

J. Birnbach GIA 2.29 Carat Fancy Yellow Cushion Cut Diamond Solitaire
J. Birnbach GIA 2.29 Carat Fancy Yellow Cushion Cut Diamond Solitaire

J. Birnbach GIA 2.29 Carat Fancy Yellow Cushion Cut Diamond Solitaire

By J. Birnbach

Located in New York, NY

Bright, bold, and beautifully refined, this elegant 14K yellow gold pavé ring is centered by a captivating fancy color diamond that radiates warmth and individuality. At its heart is...

Category

21st Century and Contemporary American Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

GIA Certified 3.01 Carat E/VS1 Diamond Platinum Three Stone Engagement Ring
GIA Certified 3.01 Carat E/VS1 Diamond Platinum Three Stone Engagement Ring

GIA Certified 3.01 Carat E/VS1 Diamond Platinum Three Stone Engagement Ring

Located in Miami, FL

GIA certified 3.01 carat natural cushion modified brilliant diamond three stone engagement ring in platinum 950.

Category

21st Century and Contemporary Modern Three-Stone Rings

Materials

Diamond, Platinum

18 kt. White Gold Enhanced Pink Diamond Heart 2.78 ct. Ring, GIA Certificate
18 kt. White Gold Enhanced Pink Diamond Heart 2.78 ct. Ring, GIA Certificate

18 kt. White Gold Enhanced Pink Diamond Heart 2.78 ct. Ring, GIA Certificate

Located in Antwerp, BE

White Gold Enhanced Pinkish Heart 2.78 ct. Diamond Ring Heart modified brilliant, Fancy pink enhanced diamond , 2.78 ct.

Category

21st Century and Contemporary Belgian Artisan Cluster Rings

Materials

Diamond, Pink Diamond, White Gold, 18k Gold

Contemporary 2.06 CTW Oval Diamond 18K Gold Solitaire Engagement Ring GIA
Contemporary 2.06 CTW Oval Diamond 18K Gold Solitaire Engagement Ring GIA

Contemporary 2.06 CTW Oval Diamond 18K Gold Solitaire Engagement Ring GIA

Located in Philadelphia, PA

Centering a modified oval step-cut diamond weighing 2.06 carats J color with VS2 clarity - set with talon prongs Completed by rounded shank With high polish finish Accented by groove...

Category

21st Century and Contemporary Contemporary Solitaire Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

2.00 Carat Round Colombian Emerald Ring with Diamond Halo 18 Karat Yellow Gold
2.00 Carat Round Colombian Emerald Ring with Diamond Halo 18 Karat Yellow Gold

2.00 Carat Round Colombian Emerald Ring with Diamond Halo 18 Karat Yellow Gold

Located in Scottsdale, AZ

Metal Type: 18 Karat Yellow Gold Gemstones: Emerald (Round Modified Brilliant) / Diamond (Round Brilliant Cut) Ring Size: 7 Band Width: 1.8mm Item Weight: 4.7 grams Estate Condition:...

Category

21st Century and Contemporary Colombian Contemporary Cocktail Rings

Materials

Diamond, Emerald, Gold, 18k Gold, Yellow Gold

GIA Certified 1.20 Carat Yellow Diamond Unique Engagement Cocktail Ring Gift
GIA Certified 1.20 Carat Yellow Diamond Unique Engagement Cocktail Ring Gift

GIA Certified 1.20 Carat Yellow Diamond Unique Engagement Cocktail Ring Gift

Located in Hong Kong, HK

Product Specifications: Center Stone: 1.20ct Cushion Cut Modified Brilliant Diamond with GIA Certificate (Another GIA diamond will be replaced if it is sold out) Center Diamond measu...

Category

2010s Modern Engagement Rings

Materials

White Diamond, Yellow Diamond, 14k Gold, White Gold

0.92 Carat Oval Brilliant Gia Certified D Color VS2 Clarity Diamond
0.92 Carat Oval Brilliant Gia Certified D Color VS2 Clarity Diamond

0.92 Carat Oval Brilliant Gia Certified D Color VS2 Clarity Diamond

Located in New York, NY

ITEM DESCRIPTION ID #: NYC56500 Stone Shape: OVAL MODIFIED BRILLIANT Diamond Weight: 0.90ct Clarity: VS2 Color: D Cut: Excellent Measurements: 6.99 x 5.13 x 3.58 mm Depth %: 69.9% ...

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Vintage C. Krypell Sterling Silver 18K Gold Citrine Diamond Ring Sz 6.5 Designer
Vintage C. Krypell Sterling Silver 18K Gold Citrine Diamond Ring Sz 6.5 Designer

Vintage C. Krypell Sterling Silver 18K Gold Citrine Diamond Ring Sz 6.5 Designer

By Charles Krypell

Located in Addison, TX

Krypell Metal: Sterling Silver & 18K Yellow Gold Ring Size: 6.5 Weight: 10.9 grams Center Stone: Natural Citrine Cut: Checkerboard Cushion / Modified Cushion Cut Accent Stones: Diamo...

Category

20th Century Engagement Rings

Materials

Citrine, Diamond, Gold, 18k Gold, Yellow Gold, Sterling Silver

Natural Zambian Emerald Diamond Necklace 14k White Gold SI/H Estate Jewelry
Natural Zambian Emerald Diamond Necklace 14k White Gold SI/H Estate Jewelry

Natural Zambian Emerald Diamond Necklace 14k White Gold SI/H Estate Jewelry

By Spectrum Jewels

Located in Deira, Dubai

Product Specifications: Diamond Clarity: SI/H Metal: 14k Solid White Gold Certification: HRD Certified Natural Gemstones Item Code :- SEN-51249 (14k) Gross Wt. :- 47.76 gm 14k White...

Category

21st Century and Contemporary American Modern Drop Necklaces

Materials

Diamond, Emerald, Gold, 14k Gold, White Gold

Platinum Solitaire Diamond Engagement Ring Natural Radiant 2.50ct F/VS2 GIA Sz 7
Platinum Solitaire Diamond Engagement Ring Natural Radiant 2.50ct F/VS2 GIA Sz 7

Platinum Solitaire Diamond Engagement Ring Natural Radiant 2.50ct F/VS2 GIA Sz 7

Located in Carmel By The Sea, CA

The ring contains one cut-cornered rectangular modified brilliant cut center diamond secured in a four-wire prong setting with pavé-encrusted support bars forming a concealed hidden ...

Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA Certified Fancy Green-Blue Diamond – 0.12 Carat Natural Oval Brilliant
GIA Certified Fancy Green-Blue Diamond – 0.12 Carat Natural Oval Brilliant

GIA Certified Fancy Green-Blue Diamond – 0.12 Carat Natural Oval Brilliant

Located in Portland, OR

Rare and timeless beauty with this GIA Certified Fancy Green-Blue natural diamond. At 0.12 carats, this exquisite oval modified brilliant diamond is small in size but carries an ext...

Category

2010s South African Loose Gemstones

Materials

Blue Diamond

GIA Certified 1.20 Carat Cushion Cut Light Yellow Diamond Unique Engagement Ring
GIA Certified 1.20 Carat Cushion Cut Light Yellow Diamond Unique Engagement Ring

GIA Certified 1.20 Carat Cushion Cut Light Yellow Diamond Unique Engagement Ring

Located in Hong Kong, HK

Product Specifications: Center Stone: 1.20ct Cushion Cut Modified Brilliant Diamond with GIA Certificate (Another GIA diamond will be replaced if it is sold out) Center Diamond measu...

Category

2010s Modern Engagement Rings

Materials

White Diamond, Yellow Diamond, 14k Gold

GIA Certified 2.4 Carat No Heat Pink Sapphire & Briolette Diamond Platinum Ring
GIA Certified 2.4 Carat No Heat Pink Sapphire & Briolette Diamond Platinum Ring

GIA Certified 2.4 Carat No Heat Pink Sapphire & Briolette Diamond Platinum Ring

By Gad & Co.

Located in Miami, FL

It is paired with 2 briolette cut modified brilliant white diamond side stones set north and south of the center stone, and numerous near colorless round brilliant diamonds.

Category

21st Century and Contemporary Malagasy Contemporary Engagement Rings

Materials

Diamond, White Diamond, Pink Sapphire, Platinum

GIA 14K White Gold Natural 1.01 Carat Cushion Cut Diamond Halo Engagement Ring
GIA 14K White Gold Natural 1.01 Carat Cushion Cut Diamond Halo Engagement Ring

GIA 14K White Gold Natural 1.01 Carat Cushion Cut Diamond Halo Engagement Ring

Located in Boca Raton, FL

GIA 14K White Gold Natural Cushion Cut Diamond Halo Engagement Ring Style: Cushion Cut Diamond Halo Engagement Ring Material: 14k White Gold  Main Diamond Details: The Main Diamond ...

Category

21st Century and Contemporary Modern Engagement Rings

Materials

Diamond, 14k Gold, White Gold, Gold

EXTREMELY RARE! GIA Certified 2.02 Carat  Lozenge Kite Step cut Antique Diamond
EXTREMELY RARE! GIA Certified 2.02 Carat  Lozenge Kite Step cut Antique Diamond

EXTREMELY RARE! GIA Certified 2.02 Carat Lozenge Kite Step cut Antique Diamond

Located in New York, NY

ITEM DESCRIPTION ID #: NYC57128 Stone Shape: MODIFIED LOZENGE STEP CUT Diamond Weight: 2.02 CT Clarity: I1 Color: G Cut: Excellent Measurements: 17.14 X 7.35 X 2.86 mm Depth %: 38....

Category

21st Century and Contemporary North American Art Deco Loose Gemstones

Materials

White Diamond, Diamond

1.30 Carat GIA Certified Square Brilliant Cut Diamond Platinum Engagement Ring
1.30 Carat GIA Certified Square Brilliant Cut Diamond Platinum Engagement Ring

1.30 Carat GIA Certified Square Brilliant Cut Diamond Platinum Engagement Ring

Located in New York, NY

This amazing platinum engagement ring centers a unique GIA certified modified square brilliant cut diamond that weighs 1.30ct. graded J color with VS2 clarity.

Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Natural GIA Certified 1.21ct  F VS1 14K Gold Cushion Diamond Engagement Ring
Natural GIA Certified 1.21ct  F VS1 14K Gold Cushion Diamond Engagement Ring

Natural GIA Certified 1.21ct F VS1 14K Gold Cushion Diamond Engagement Ring

Located in Carmel By The Sea, CA

GIA Certified 1.21ct Cushion Diamond Engagement Ring F VS1 14K White Gold 2.33CTW Size 6 🡆 Description: This is a natural diamond engagement ring, crafted in solid 14-karat white g...

Category

2010s Art Deco Wedding Rings

Materials

Diamond, 14k Gold, White Gold

Peter Suchy GIA Certified 1.95 Carat Diamond Platinum Engagement Ring
Peter Suchy GIA Certified 1.95 Carat Diamond Platinum Engagement Ring

Peter Suchy GIA Certified 1.95 Carat Diamond Platinum Engagement Ring

By Peter Suchy

Located in Stamford, CT

Made in the Peter Suchy Workshop 1 square modified brilliant diamond F VS2, approx. 1.95cts GIA Certificate 2201145958 50 round brilliant cut diamonds F VS, approx. .38ct Size 6....

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA Certified 0.41 Carat Fancy Light Pinkish Purple VS2 Clarity Diamond
GIA Certified 0.41 Carat Fancy Light Pinkish Purple VS2 Clarity Diamond

GIA Certified 0.41 Carat Fancy Light Pinkish Purple VS2 Clarity Diamond

Located in บางรัก, TH

The shape can be further enhanced with different cuts, such as the classic or modified pear. Our 0.41 carat diamond is a small yet stunning diamond, ideal for those seeking a subtle...

Category

2010s Asian Loose Gemstones

Materials

Diamond

.76 Carat Radiant Cut Diamond Sapphire Platinum Three-Stone Engagement Ring
.76 Carat Radiant Cut Diamond Sapphire Platinum Three-Stone Engagement Ring

.76 Carat Radiant Cut Diamond Sapphire Platinum Three-Stone Engagement Ring

Located in Stamford, CT

A timeless and distinctive choice, it is perfect for those who appreciate classic design with a touch of color. 1 cut cornered rectangular modified brilliant I- VS2 diamond Approxim...

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

GIA Certified 3.01 Carat E/VS1 Diamond Platinum Three Stone Engagement Ring
GIA Certified 3.01 Carat E/VS1 Diamond Platinum Three Stone Engagement Ring

GIA Certified 3.01 Carat E/VS1 Diamond Platinum Three Stone Engagement Ring

Located in Miami, FL

GIA certified 3.01 carat natural cushion modified brilliant diamond three stone engagement ring in platinum 950.

Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

Diamond, Platinum

J. Birnbach GIA 2.10 Carat J SI2 Cushion Cut Diamond Vine Motif Solitaire Ring
J. Birnbach GIA 2.10 Carat J SI2 Cushion Cut Diamond Vine Motif Solitaire Ring

J. Birnbach GIA 2.10 Carat J SI2 Cushion Cut Diamond Vine Motif Solitaire Ring

By J. Birnbach

Located in New York, NY

Key Details - 2.10 carat cushion modified brilliant diamond, GIA J SI2 - Two round brilliant accent diamonds, 0.04 total carat weight - Vine motif setting - Crafted in 14K white gol...

Category

21st Century and Contemporary American Contemporary Solitaire Rings

Materials

Diamond, 14k Gold

Fancy Cut Diamond Halo Necklace Estate 14k White Gold 16" Chain Fine Jewelry
Fancy Cut Diamond Halo Necklace Estate 14k White Gold 16" Chain Fine Jewelry

Fancy Cut Diamond Halo Necklace Estate 14k White Gold 16" Chain Fine Jewelry

Located in Torrance, CA

The chic necklace is set with a modified heart shaped diamond to the center, accented with a halo of diamonds.

Category

Mid-20th Century Unknown Modern Pendant Necklaces

Materials

Diamond, White Diamond, Gold, 14k Gold, White Gold

12.76 Carat Blue Sapphire 13.86ct SI/H Diamond 18k White Gold Choker Necklace
12.76 Carat Blue Sapphire 13.86ct SI/H Diamond 18k White Gold Choker Necklace

12.76 Carat Blue Sapphire 13.86ct SI/H Diamond 18k White Gold Choker Necklace

By Spectrum Jewels

Located in Deira, Dubai

Choker Length :- 13 inches long Making: 100% Handmade Treatment: Natural Distinctive Features: ✓ 12.76 Carats Blue Sapphire - Premium natural gemstones ✓ 13.86 Carats SI/H Diamonds ...

Category

21st Century and Contemporary Indian Modern Choker Necklaces

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

GIA Certified 1.26 Orange Sapphire Diamond Platinum Engagement Ring
GIA Certified 1.26 Orange Sapphire Diamond Platinum Engagement Ring

GIA Certified 1.26 Orange Sapphire Diamond Platinum Engagement Ring

Located in Stamford, CT

Orange sapphire and diamond engagement ring. GIA certified natural simple heat only sapphire in its original 1930’s Art Deco platinum setting with six baguette accent diamonds.

Category

Early 20th Century Engagement Rings

Materials

Diamond, Sapphire, Platinum

Gubelin Certified 2.11 Carat Burma No Heat Sapphire Diamond Platinum Ring
Gubelin Certified 2.11 Carat Burma No Heat Sapphire Diamond Platinum Ring

Gubelin Certified 2.11 Carat Burma No Heat Sapphire Diamond Platinum Ring

Located in Kowloon, Hong Kong

Surrounding the sapphire, a meticulously arranged selection of brilliant and modified brilliant-cut diamonds maximizes brilliance and contrast, amplifying the sapphire’s depth and lu...

Category

2010s Engagement Rings

Materials

Diamond, Sapphire, Platinum

0.92 Carat Cushion Brilliant Gia Certified G Color I2 Clarity Diamond
0.92 Carat Cushion Brilliant Gia Certified G Color I2 Clarity Diamond

0.92 Carat Cushion Brilliant Gia Certified G Color I2 Clarity Diamond

Located in New York, NY

ITEM DESCRIPTION ID #: NYC55795 Stone Shape: CUSHION MODIFIED BRILLIANT Diamond Weight: 0.92ct Clarity: I2 Color: G Cut: Excellent Measurements: 6.25 x 5.42 x 3.39 mm Depth %: 62.6% ...

Category

Antique 15th Century and Earlier Loose Gemstones

Materials

White Diamond

Stunning 18k Yellow Gold Necklace 1.05 Ct Natural Diamonds, GIA Certificate
Stunning 18k Yellow Gold Necklace 1.05 Ct Natural Diamonds, GIA Certificate

Stunning 18k Yellow Gold Necklace 1.05 Ct Natural Diamonds, GIA Certificate

Located in רמת גן, IL

A beautiful classic halo ring with a dazzling 1.05 carat Cushion Modified natural diamond in F VS1 quality and ideal cut what's means extremely bright and sparkles Natural Diamond.

Category

2010s Israeli Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

GIA Certified 1.91-Carat Fancy Yellow Diamond Ring in Platinum
GIA Certified 1.91-Carat Fancy Yellow Diamond Ring in Platinum

GIA Certified 1.91-Carat Fancy Yellow Diamond Ring in Platinum

By Jan Feld

Located in New York, NY

1.91ct Cut Cornered Modified Brilliant Fancy Yellow Diamond Ring, GIA Certificate # 5111396659 featuring 0.40ct Total Weight of Half Moon Diamonds and 0.96ct Total Weight of Round B...

Category

2010s American Art Deco Engagement Rings

Materials

Yellow Diamond, 18k Gold, Platinum

Tiffany & Co. Legacy 0.66 Carat Cushion Diamond and Platinum Engagement Ring
Tiffany & Co. Legacy 0.66 Carat Cushion Diamond and Platinum Engagement Ring

Tiffany & Co. Legacy 0.66 Carat Cushion Diamond and Platinum Engagement Ring

By Tiffany & Co.

Located in San Diego, CA

Tiffany & Co Legacy Engagement Ring Style: Cushion Diamond surrounded by bead set diamonds Serial Number: 31025605/O1150332 Metal: Platinum Size: 5.5 Total Carat Weight: 0.66TCW Ma...

Category

2010s American Engagement Rings

Materials

Diamond, Platinum

8.02-carat GIA Certified Diamond Ring 18k White Gold Modern Jewelry
8.02-carat GIA Certified Diamond Ring 18k White Gold Modern Jewelry

8.02-carat GIA Certified Diamond Ring 18k White Gold Modern Jewelry

Located in Beverly Hills, CA

A modern 18k white gold diamond ring with GIA certified cut-cornered rectangular modified brilliant cut diamond.

Category

21st Century and Contemporary Unknown Cocktail Rings

Materials

Diamond, White Gold, 18k Gold

  • 1
Get Updated with New Arrivals
Save "Modified Diamond", and we’ll notify you when there are new listings in this category.

Modified Diamond For Sale on 1stDibs

Surely you’ll find the exact modified diamond you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Frequently made of Gold, 18k Gold and Platinum, this item was constructed with great care. In our selection of items, you can find a vintage example as well as a contemporary version. Finding the perfect modified diamond may mean sifting through those created during different time periods — you can find an early version that dates to the 20th Century and a newer variation that were made as recently as the 21st Century. For this particular piece, .5 Carat and 1 Carat are consistently popular carat weights. A modified diamond from Khai Khai Jewelry, Antinori Fine Jewels and J. Birnbach — each of whom created a beautiful version of this treasured accessory — is worth considering. See these pages for a cushion cut iteration of this accessory, while there are also trillion cut cut and round cut cut versions available here, too. If you’re browsing our inventory for a modified diamond, you’ll find that many are available today for women, but there are still pieces to choose from for unisex and men.

How Much is a Modified Diamond?

On average, a modified diamond at 1stDibs sells for $13,890, while they’re typically $1,325 on the low end and $415,000 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 rings, vintage engagement rings or Art Deco engagement rings. 

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