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Sophisticated 1.33ct Cushion Cut Pave Diamond Ring in 18K Pink Gold
Located in רמת גן, IL
, showcasing a mesmerizing 1-carat cushion modified brilliant diamond. This captivating centerpiece, boasting
Category

2010s Israeli Cocktail Rings

Materials

Diamond, 18k Gold, Rose Gold

GIA Certified 1.26 Orange Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
original 1930’s Art Deco platinum setting with six baguette accent diamonds. Vintage rectangular modified
Category

Early 20th Century Engagement Rings

Materials

Diamond, Sapphire, Platinum

1.16 Carat Heart Brilliant Gia Certified I Color Vs2 Clarity Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC56905 Stone Shape: HEART MODIFIED BRILLIANT Diamond Weight: 1.16ct
Category

Antique 15th Century and Earlier Loose Gemstones

Materials

White Diamond

Tiffany Co. Legacy 0.66 Carat Cushion Diamond and Platinum Engagement Ring
By Tiffany Co.
Located in San Diego, CA
: Cushion Modified Brilliant Diamond Color & Clarity: H / VVS1 Accent Diamonds: Round Brilliant Cut
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

Exquisite 1.47ct Cushion Cut Diamond Ring set in 18K White Gold
Located in רמת גן, IL
modified brilliant diamond as its centerpiece. Graced with the coveted D color (colorless) and VS1 clarity
Category

2010s Israeli Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

Green emerald and diamond heart shaped drop earrings 18k white gold
Located in London, GB
modified asscher diamond with butterfly settings set in 18k white gold. Unforgettable jewellery piece for
Category

21st Century and Contemporary Art Deco Drop Earrings

Materials

Diamond, Emerald, 18k Gold, White Gold

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
Category

2010s Israeli Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

1.28 Carat Rectangular Brilliant GIA Certified Fancy Yellow VS2 Clarity Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC55743 Stone Shape: CUT-CORENRED RECTANGULAR MODIFIED BRILLIANT Diamond
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

GIA Unheated Greenish-Blue Sapphire Diamond Ring in 18K Two-Tone Gold
Located in Miami, FL
adorned with a row of square modified brilliant diamonds on either side. This combination of precision-cut
Category

Early 2000s Engagement Rings

Materials

Diamond, Blue Sapphire, Gold

Gia Certified 1.55 Carat Fancy Dark Yellowish Brown Vs2 Rectangular Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC53944 Stone Shape: CUT CORNERED RECTANGULAR MODIFIED BRILLIANT Diamond
Category

Antique 15th Century and Earlier Loose Gemstones

Materials

Brown Diamond

Gubelin GIA Certified 2.38 Carat Burma No Heat Sapphire Diamond Platinum Ring
Located in Kowloon, HK
brilliant and modified brilliant-cut diamonds maximizes brilliance and contrast, amplifying the sapphire’s
Category

2010s Engagement Rings

Materials

Diamond, Sapphire, Platinum

14K White Gold Diamond Bridal Ring Set EGL Certified 1.15tdw
Located in Laguna Beach, CA
Diamond ring set in 14k white gold Stamped 14k and weighs 5.4 grams The center diamond is a
Category

Mid-20th Century Bridal Rings

Materials

Diamond, 14k Gold, White Gold

1.01 Carat Rectangular Cut Diamond Rose Gold Pendant Necklace
By Issac Nussbaum
Located in New York, NY
rectangular modified brilliant cut diamond, weighing 1.01 carats. I color SI2 clarity. The incredible
Category

2010s American Modern Pendant Necklaces

Materials

Diamond, Rose Gold

Fancy Yellow GIA and White Diamond Gold Two-Stone Stud Drop Earrings
Located in Beverly Hills, CA
are made of 18 karat (tested) rose gold and feature two rectangular modified brilliant cut fancy
Category

Early 2000s Unknown Drop Earrings

Materials

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

GIA Certified Natural Fancy Yellow White Diamond Three Stone Engagement Ring
Located in New York, NY
GIA certified 1.01 Carat Yellow Diamond and 1 Ct White Diamond Three Stone Engagement Ring in 18
Category

2010s Engagement Rings

Materials

White Diamond, Yellow Diamond, Gold, 18k Gold

GIA Certified 0.51 Carat Solitaire Square Cut Diamond Ring in Platinum
Located in London, GB
Modified Brilliant Diamond of E colour and SI1 clarity. The Scintillating diamond in this masterpiece is
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Platinum

Roberto Coin Cento 18K White Gold Diamond Stud Earrings 1.00cttw #20996
By Roberto Coin Cento
Located in Washington Depot, CT
on 100 facets that form a symmetrical floral pattern. The Cento diamond is a modified brilliant cut
Category

20th Century Contemporary Stud Earrings

Materials

Diamond, Gold, 18k Gold, White Gold

IGI certified 0.42 Carat Colombian Emerald Diamond Ring in 18K White Gold
Located in KOWLOON, HK
modified brilliant emerald and diamond ring is more than just a piece of jewelry; it's a statement of
Category

2010s Hong Kong Modern Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

IGI certified 1.96 Carat Colombian Emerald Diamond Ring in 18K White Gold
Located in KOWLOON, HK
modified brilliant emerald and diamond ring is more than just a piece of jewelry; it's a statement of
Category

2010s Hong Kong Modern Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

1.00cttw Square Diamond Double Band Engagement Ring 14k Rose White Gold
Located in New York, NY
This enchanting engagement ring is adorned with a sparkling GSI certified square modified brilliant
Category

2010s Modern Engagement Rings

Materials

Diamond, 14k Gold, White Gold

Tiffany Co Lucida Platinum Diamond Engagement Ring 0.46 tc E VVS1
By Tiffany Co.
Located in San Diego, CA
: 5.5 - sizable Total Carat Weight: 0.46 cts Diamond Shape: Cut Corner Square Modified Brilliant
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

GIA Certified Natural Pink Purple Cushion cut Diamond in 18k White Gold
Located in Webster, NY
gold. Center Diamond Carat Weight: .53CT Center Diamond Cut: Cushion Modified Brilliant cut Center
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 0.60 Carat Solitaire Square Brilliant Diamond Ring in Platinum
Located in London, GB
This immaculate ring features a Square Modified Brilliant Diamond at its centre, held in a claw
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Platinum

J. Birnbach GIA 4.30 Carat Fancy Light Yellow Cushion Cut Diamond Solitaire Ring
By J. Birnbach
Located in New York, NY
carat cushion modified brilliant diamond, Fancy Color Light Yellow VS2, GIA certified - Becure button
Category

21st Century and Contemporary American Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

GIA Certified 5 Carat Fancy Intense Yellow Diamond Platinum and Yellow Gold Ring
Located in Chicago, IL
diamond of exceptional beauty, certified by GIA. The cut-cornered rectangular modified brilliant diamond
Category

2010s American Contemporary Engagement Rings

Materials

Yellow Diamond, Yellow Gold, Platinum

Fancy Yellow Cushion Cut 1.96 Carat Diamond Ring in 14 Karat White Gold GIA
Located in San Diego, CA
: 1.96 TCW Diamond Shape: Cushion ( Cushion Modified Brilliant ) 1.20 CTS Diamond Color & Clarity
Category

2010s Engagement Rings

Materials

Diamond, Yellow Diamond, 14k Gold, White Gold

GIA Certified 3.01 Carat E/VS1 Cushion Cut Diamond Mens Solitaire Bezel Ring
Located in Miami, FL
exceptional 3.01 carat cushion modified brilliant diamond features coveted E color placing it in the colorless
Category

21st Century and Contemporary Contemporary Solitaire Rings

Materials

Diamond, White Gold, 18k Gold, Gold

Peter Suchy GIA Certified 1.53 Carat Diamond Platinum Halo Engagement Ring
By Peter Suchy
Located in Stamford, CT
rectangular modified brilliant cut diamond F-G VS2, approx. 1.53ct GIA certificate # 2205927529 40 round
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA Certified White Gold Cushion Cut Diamond Ring 1.66ct I/VS1
Located in Mayfair, London, London
modified brilliant cut diamond weighing 1.66ct, I colour and VS1 clarity. The 3mm white gold band tapers up
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 18k Gold, White Gold

3.22 Ct EGL Certified Cushion 14K Diamond Stud Earrings with Halo
By Sebastian Bernard
Located in Los Angeles, CA
This beautiful pair of Diamond Earrings is made in 14K Gold with a pair of Cushion Modified
Category

2010s American Contemporary Stud Earrings

Materials

Diamond, 14k Gold

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

Steven Tyler the Designer "Gilded Gods" Tourmaline, Ruby Diamond 18K Necklace
Located in Scottsdale, AZ
tourmaline with a mesmerizing depth of color. The modified rectangular cut of the tourmaline adds a
Category

21st Century and Contemporary Unknown Contemporary Pendant Necklaces

Materials

Diamond, Ruby, Tourmaline, Gold, 18k Gold, Yellow Gold

Mughal Magnificenct Traditional Rose Cut Diamond Navratan 18 Kt YG Bridal Set
Located in New York, NY
are surrounding the center diamond. The modified triangular and oval shaped diamonds, and rose-cut
Category

2010s Drop Necklaces

Materials

Diamond, 18k Gold

Tiffany Co. Grace Princess Diamond Engagement Ring 0.76 Tcw E VVS1 Platinum
By Tiffany Co.
Located in San Diego, CA
: Square Modified Brilliant ( Princess Cut ) Diamond 0.61 cts Color & Clarity: E, VVS1 Inscription: Crown
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

1.30 Carat GIA-Certified Cushion Natural Diamond V, VS1 18K Yellow Gold Ring
Located in New York, NY
A captivating 18K yellow gold ring, adorned with a GIA-certified 1.30 carat cushion modified
Category

21st Century and Contemporary Modern Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold

2.01 ct GIA Fancy Yellowish Orange Cushion Diamond Halo Engagement Ring
By J. Birnbach
Located in New York, NY
This ring features a 2.01 carat cut-cornered rectangular modified brilliant diamond, of VS2 clarity
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Platinum

Romantic 1 Carat Cushion Diamond Ring with Dazzling Side Stones in 18K Pink Gol
Located in רמת גן, IL
1 carat cushion modified natural diamond set in luxurious 18K pink gold with .10 ct side diamonds
Category

2010s Israeli Cocktail Rings

Materials

Diamond, Rose Gold

GIA Certified 2.56 Carat Square Cut Diamond Platinum Three-Stone Engagement Ring
Located in Stamford, CT
. 1 square modified brilliant cut diamond, G VVS2 approx. 1.38cts GIA Certificate # 2165847195 2
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

1.52ct Cushion Cut Earth-Mined GIA Diamond (E/SI) 18K White Gold Ring by Diamor.
Located in MELBOURNE, AU
Accents design this piece is centrally set with a sparkling Cushion Modified Brilliant Cut Diamond – of
Category

2010s Australian Engagement Rings

Materials

Diamond, White Gold, 18k Gold

14K White Gold Natural Emerald and Diamond Ring Size 5.5 #16460
Located in Washington Depot, CT
cts. Two triangular modified brilliant diamonds total .50 carats and are SI1 - SI2, H-I Front of the
Category

20th Century Engagement Rings

Materials

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

Peter Suchy GIA 2.02 Carat Diamond Platinum Split Shank Engagement Ring
By Peter Suchy
Located in Stamford, CT
Diamond custom split shank engagement ring. Platinum shank with 44 round accent diamonds along the
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Platinum

0.76 Ct. H VS2 GIA Hearts on Fire Dream Cut Platinum Diamond Engagement Ring
By Hearts On Fire
Located in New York, NY
-Cornered Square Modified Brilliant Diamond Weight: 0.76 ct Diamond Measurements 5.12 x 5.09 x 3.66mm
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Mughal Magnificenct Traditional Kundan Polki Rose Cut Diamond 18 K Bridal Set
Located in New York, NY
modified triangular-shaped diamonds, and rose-cut diamonds, emerald bead, green enamel, foil, gold
Category

2010s Drop Necklaces

Materials

Diamond, 18k Gold

14K White Gold Square Cut Diamond Engagement Ring Size 5.75 GIA Certified #20109
Located in Washington Depot, CT
white gold engagement ring features one square modified brilliant cut diamond (.42 ct.) accented with 20
Category

20th Century Contemporary Engagement Rings

Materials

Diamond, 14k Gold, White Gold

Mens Diamond Cross and Engraved Scripture Large Signet Ring 14 Karat Yellow Gold
Located in Scottsdale, AZ
engraved with a meaningful scripture and adorned with six modified square emerald-cut diamonds arranged in
Category

21st Century and Contemporary Unknown Contemporary Signet Rings

Materials

Diamond, Gold, 14k Gold, Yellow Gold

.76 Carat Radiant Cut Diamond Sapphire Platinum Three-Stone Engagement Ring
Located in Stamford, CT
cornered rectangular modified brilliant I- VS2 diamond Approximate .76 carats. GIA Certificate # 1196464029
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

18k Yellow Gold Solitaire Ring w/ 0.61 ct Natural Diamonds, GIA Certificate
Located in רמת גן, IL
A beautiful classic solitaire ring with a dazzling 0.61 carat Cushion Modified natural diamond in
Category

2010s Israeli Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

18K White Gold GIA 1.01ct Cushion Cut Diamond Crossover Shank Engagement Ring
Located in Houston, TX
Set in 18 Karat White Gold with: One (1) modified cushion brilliant cut natural diamond
Category

21st Century and Contemporary Unknown Engagement Rings

Materials

Diamond, Gold, 18k Gold, White Gold

GIA Certified 5.01ct Natural Cushion Cut Diamond Engagement Ring White Gold
Located in Aventura, FL
Cutting Style: Cushion Modified Brilliant Style: Pave Diamond Ring Measurements: 11.06 x 9.21 x 6.44 mm
Category

21st Century and Contemporary American Modernist Engagement Rings

Materials

Diamond, White Gold

Simon G Halo Diamond Ring Pave Band Cushion 1.31 Carat F VVS1 Platinum
By Simon G Jewelry
Located in San Diego, CA
Metal: Platinum PT950 Size: 5 - Sizable Total Carat Weight: 1.31 TCW Diamond Shape: Cushion Modified
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

Vintage GIA 2.55ctw Antique Cushion Cut Diamond 3 Stone Engagement Platinum Ring
Located in New York, NY
Exquisite vintage Diamond ring with an antique Cushion Modified brilliant Center Diamond 2.01Ct L color SI2
Category

2010s Modern Engagement Rings

Materials

Diamond, Platinum

Bespoke Bespoke 14ct White Gold Ruby Diamond Set "Art-Deco" Ring 4.62ct
Located in SYDNEY, NSW
A Ruby & Diamond Set "Art-Deco" Inspired Ring, made of 14ct White Gold. Featuring 1 Oval Modified
Category

21st Century and Contemporary Art Deco Cocktail Rings

Materials

Diamond, Ruby, 14k Gold, White Gold

Christopher Designs L Amour Crisscut Pear Shape Diamond GIA Engagement Ring
By Christopher Designs
Located in Los Gatos, CA
Center Diamond Modified Pear Brilliant Cut 0.85 cts GIA CERTIFIED # 5283848647 CLP038 Serial # M44387
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, White Gold, 18k Gold

GIA Certified 0.92 Carat J VS1 Princess Cut Diamond Single Stone/Solitaire Ring
Located in London, GB
Single stone diamond ring. A square modified brilliant (princess) cut white diamond set in a
Category

2010s British Modern Engagement Rings

Materials

Diamond, Platinum

Platinum 1.27 Carat GIA Certified Rare Natural Half Moon Diamond I VVS1 Pendant
Located in Los Angeles, CA
Centerstone is a Natural 1.27 carat Half-Moon Modified Brilliant diamond certified by GIA (#6193007685) as an
Category

2010s North American Modern Pendant Necklaces

Materials

Diamond, Platinum

1.00 Carat Radiant Cut Diamond White Gold Solitaire Engagement Ring
Located in Stamford, CT
fine white F color diamond in the center. 1 radiant modified octagonal brilliant cut diamond, approx
Category

Late 20th Century Engagement Rings

Materials

Diamond, 14k Gold, White Gold, Gold

Ravishing 18k Rose Gold Halo Ring w/ 0.84 Carat Natural Diamonds IGI Cert
Located in רמת גן, IL
A gorgeous art deco ring with a dazzling 0.8 carat square cushion modified natural diamond. It has
Category

2010s Israeli Engagement Rings

Materials

Diamond, 18k Gold, Rose Gold

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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 ringsvintage engagement rings or Art Deco engagement rings

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