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GIA 2.10 Carat Oval Natural Fancy Light Yellow VS1 Diamond Engagement Ring
Located in Baltimore, MD
) Diamond shape: Oval Modified Brilliant Carat Weight: 2.10ct Color: Fancy Light Yellow, Natural Clarity
Category

2010s Modern Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold

Graff Fancy Vivid Yellow Diamond Ear-Clip
By Graff
Located in New York, NY
- cornered rectangular modified brilliant Fancy Vivid Yellow diamonds weighing total of 2.31 carat (With GIA
Category

Late 20th Century British Artist Clip-on Earrings

Materials

Yellow Diamond, 18k Gold, Platinum

GIA Certified Natural Fancy Pink Oval Diamond 1.11 Carat
By GIA
Located in Tustin, CA
GIA certified as a 1.11ct I1 Natural Fancy Pink Oval Modified Brilliant cut diamond. The diamond is
Category

2010s American Modern Solitaire Rings

Materials

Pink Diamond

Vintage GIA 2.66 Carat Ceylon Sapphire Diamond Platinum Ring Set
Located in Beverly Hills, CA
Lanka) origin. Accented by two triangular modified brilliant cut diamonds with a total weight of
Category

Vintage 1980s Wedding Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum

GIA Certified 2.53 Carat Princess Cut Diamond Pave Frame Halo Platinum Ring
By J. Birnbach
Located in New York, NY
Grading Report 11642553, which states that the 2.53 carat rectangular modified brilliant cut diamond has H
Category

21st Century and Contemporary Cluster Rings

Materials

Diamond, White Diamond, Platinum

Vintage GIA 1.67 Carat Cushion Cut Diamond Engagement Ring
Located in Beverly Hills, CA
carat cushion cut modified brilliant diamond accompanied with certificate #5416089934 stating the
Category

Early 2000s Engagement Rings

Materials

Diamond, 18k Gold, Platinum

GIA Certified Three-Stone Blue Sapphire Diamond Platinum Ring
By William Rosenberg
Located in Troy, MI
Stunning 6.72 carat oval blue sapphire and two D VS half-moon modified cut diamonds make up this
Category

21st Century and Contemporary American Three-Stone Rings

Materials

Diamond, Blue Sapphire, Platinum

GIA Certified 1.01 carat Diamond Gold Engagement Ring
Located in Miami, FL
(rectangular modified brilliant cut diamond) approx: 1.01cts, graded E color, SI2 clarity ( very smal feather
Category

1990s Unknown Modern Engagement Rings

Materials

Diamond, 14k Gold, White Gold

Tiffany Co. Platinum Legacy Diamond Ring 1.34ct G/VS1
By Tiffany Co.
Located in Mayfair, London, London
centre with a 1.34ct modified cushion cut diamond, G colour and VS1 clarity. The diamond is complemented
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Platinum

Tiffany Co. Soleste Yellow and White Diamond Platinum White Gold Ring
By Tiffany Co.
Located in Southampton, PA
modified brilliant cut fancy yellow diamond carat weight .64ct round brilliant cut diamonds VS1 clarity, G
Category

21st Century and Contemporary American Cocktail Rings

Materials

White Diamond, Yellow Diamond, 18k Gold, Platinum

Glamorous 0.87ct Halo Diamond Ring in 18K White Gold
Located in רמת גן, IL
modified brilliant diamond, certified by IGI (10J2198823). Its captivating D-E color and VS2-SI1 clarity
Category

2010s Israeli Solitaire Rings

Materials

Diamond, White Gold

GIA Certified 6.19 Carat Cushion Cut Diamond Platinum Pave Split Shank Ring
Located in New York, NY
states that the 6.19 carat cushion modified brilliant-cut diamond has J color and SI1 clarity.
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 1.02ct Fancy Vivid Yellow Cushion Shape Natural Color Diamond
Located in Hong Kong, HK
This is a GIA-certified 1.02-carat Fancy Vivid Yellow cushion-cut diamond. The diamond exhibits a
Category

21st Century and Contemporary Indian Contemporary Loose Gemstones

Materials

Diamond, Yellow Diamond

Georgian Old Mine Cut Diamond Convertible Ear Pendants
Located in New York, NY
approximate total diamond weight of 21.50 carats; 2 modified pear cut diamonds weighing 4.61 carats, K color
Category

Antique Early 19th Century Georgian Dangle Earrings

Materials

Diamond, 15k Gold, Silver

Certified Fancy Yellow Three-Stone Diamond Ring in Platinum and 18 Karat Gold
Located in Webster, NY
Center Diamond Carat Weight: 1.07CT Diamond Cut: Cut Cornered Rectangular Modified Brilliant Center
Category

2010s Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Platinum

Dazzling 0.73 Carat Cushion Diamond Ring with Shimmering Accents
Located in רמת גן, IL
dazzling display of light and movement. 1 diamond main stone of 0.73 carat cut: cushion modified brilliant
Category

2010s Israeli Cocktail Rings

Materials

Diamond, 18k Gold, Yellow Gold

J.E. Caldwell GIA Natural Fancy Purplish Pink Diamond Platinum Engagement Ring
Located in San Francisco, CA
Extremely Rare GIA Natural Fancy Purplish Pink Diamond for 1.01cts in JE Caldwell Platinum Setting
Category

21st Century and Contemporary Unknown Engagement Rings

Materials

Diamond, Pink Diamond, 18k Gold, Platinum

GIA Certified 1.01 Carat Faint Blue VS2 Clarity Diamond
Located in บางรัก, TH
brilliant or cushion modified brilliant, each affecting the diamond's overall look. The overall appearance
Category

2010s Asian Loose Gemstones

Materials

Diamond

Vintage GIA 2.72 Carat Fancy Brown-Yellow Pear Cut Diamond Platinum Ring
Located in Beverly Hills, CA
pear modified brilliant cut diamond of 2.72 carats, accompanied by GIA #7431021569 stating the diamond
Category

1990s Engagement Rings

Materials

Diamond, White Diamond, Brown Diamond, Platinum

1.56 Carat Natural Fancy Color Diamond Men s Ring 18 Karat Pinkish Brown Blinger
Located in New York, NY
Mens Blinger Diamonds set cluster modified square top. 1.01ct. natural Radiant cut diamond
Category

2010s American Cluster Rings

Materials

Diamond, Pink Diamond, Brown Diamond, 18k Gold, White Gold

GIA Certified Fancy Yellow 3.05 Carat Diamond Platinum Ring
Located in New York, NY
cut cornered square modified brilliant diamond, weighing 3.05 carats, flanked on each side by a
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Dazzling 1 Pc Natural Diamond with 0.71 Ct I VVS1, IGI Certificate
Located in רמת גן, IL
1 pcs Diamond - 0.71 ct - Cushion - I - VVS1 IGI 1 Sparkling natural cushion modified brilliant cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

3.10 Carat Radiant Diamond 18 Karat White Gold Engagement Ring
Located in Scottsdale, AZ
square modified “radiant” 3.10 carat diamond Color: H Clarity: VS1 Diamonds: 18 round brilliant cut
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 4.03 Carat G-SI1 Cushion Cut Diamond Ring
By Diana M. Jewels
Located in New York, NY
Beautiful GIA certified diamond engagement ring with cushion modified brilliant cut diamond in the
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Platinum

Dazzling 1Pc Natural Diamond with 1.02 Ct Cushion E VS1 IGI Certificate
Located in רמת גן, IL
1 sparkling natural square cushion modified brilliant diamond in a 1.02 carat E VS1 with excellent
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1 Pc Natural Diamond w/ 1.00ct Cushion D IF IGI Certificate
Located in רמת גן, IL
One shimmering cushion modified brilliant cut natural diamond in a 1-carat D IF with excellent
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1pc Natural Diamonds w/ 1.00 ct Cushion D VVS2 IGI Certificate
Located in רמת גן, IL
One glittering cushion modified brilliant cut natural diamond in a 1 carat D VVS2 with excellent
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1pc Natural Diamond w/ 0.73 Carat Cushion D IF IGI Certificate
Located in רמת גן, IL
One dazzling cushion-modified brilliant cut natural diamond in a 0.73 carat D IF with excellent
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1Pc Natural Diamond w/ 0.80 Carat Cushion F VS1 IGI Certificate
Located in רמת גן, IL
One shimmering cushion-modified brilliant cut natural diamond in a 0.8 carat F VS1 with excellent
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1pc Natural Diamond w/ 0.70 Carat Cushion H IF IGI Certificate
Located in רמת גן, IL
One glittering cushion modified brilliant cut natural diamond in a 0.7 carat H IF with excellent
Category

2010s Israeli Loose Gemstones

Materials

Diamond

3.03 Carat GIA E color Cushion Diamond Platinum Engagement Ring
By J. Birnbach
Located in New York, NY
, SI1 clarity, Cushion Modified Brilliant diamond center stone with a 0.35ctw graduating diamond pave
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Platinum

Dazzling 1pc Natural Diamond w/ 1.01 ct Cushion D VVS2 IGI Certificate
Located in רמת גן, IL
One shimmering cushion modified natural diamond in a 1.01 carat D VVS2 with excellent polish and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1pc Natural Diamond w/ 0.70 Carat Cushion D IF IGI Certificate
Located in רמת גן, IL
One shimmering cushion modified natural diamond in a 0.7 carat D IF excellent polish and symmetry
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1pc Natural Diamond w/ 0.70 ct Cushion H IF IGI Certificate
Located in רמת גן, IL
One sparkling cushion modified brilliant cut natural diamond in a 0.7 carat H IF with excellent
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1pc Natural Diamond w/ 1.51 ct Cushion E VS1 IGI Certificate
Located in רמת גן, IL
One shiny and sparkling cushion-modified brilliant cut natural diamond in a 1.51 carat E VVS2 with
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1pc Natural Diamond w/ 1.51 Carat Cushion E VS1 IGI Certificate
Located in רמת גן, IL
One shiny and sparkling cushion-modified brilliant cut natural diamond in a 1.51 carat E VVS2 with
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1pc Natural Diamond w/ 1.00 ct Cushion E VVS1 IGI Certificate
Located in רמת גן, IL
One glittery and sparkling cushion modified cut natural diamond in a 1 carat E VVS1 with excellent
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Van Cleef Arpels GIA Cert Fancy Intense Yellow Diamond Platinum Ring VCA
By Van Cleef Arpels
Located in Beverly Hills, CA
-carat natural fancy intense yellow cut-cornered square modified brilliant cut diamond set in platinum
Category

Early 2000s American Cocktail Rings

Materials

White Diamond, Yellow Diamond, Platinum

1 pc Natural Diamond - 0.94 ct - Cushion - I - SI1- GIA Certificate
Located in רמת גן, IL
Natural cushion modified brilliant diamond in a 0.94 carat I SI1 with Beautiful cut and shine. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.90 Ct, Cushion, J, VS1, GIA Certificate
Located in רמת גן, IL
Natural cushion modified brilliant diamond in a 0.90 carat J VS1 with Beautiful cut and shine. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond 0.92 Carat Square Cushion D IF IGI Certificate
Located in רמת גן, IL
One sparkling and shiny square cushion modified cut natural diamond in a 0.92 carat D IF with
Category

2010s Israeli Engagement Rings

Materials

Diamond

GIA Certified .81 Carat Princess Cut Diamond Platinum Engagement Ring
Located in Baltimore, MD
report pictured for details) Diamond shape: Square modified brilliant Carat weight: .81 carat Color: H
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Peter Suchy Diamond Elongated Cushion Cut Halo Gold Engagement Ring
By Peter Suchy
Located in Stamford, CT
Diamond halo rim. 1 elongated cushion modified brilliant Diamond, approx. total weight .76cts, K, VS1
Category

2010s Engagement Rings

Materials

Diamond, Gold, 14k Gold, Yellow Gold

Graff Fancy Yellow Diamond Platinum Ring 10.62 Carat VS1 GIA
By Graff
Located in Beverly Hills, CA
fancy yellow cut-cornered square modified brilliant cut diamond flanked by two calf's head shape faceted
Category

Early 2000s American Cocktail Rings

Materials

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

Birks Amorique 0.73 Carat Diamond Engagement Ring Platinum in Stock
Located in Boca Raton, FL
. 0.73ctw Cushion Modified Brilliant Diamond. Center Diamond is G in color and VVS2 in clarity Dimensions
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Platinum

2 Pc Natural Diamonds, 2.03 Ct, Cushion, F, VVS1, GIA Certificate
Located in רמת גן, IL
Pair of natural cushion modified brilliant diamonds in a 2.03 carat F VVS1 with excellent cut and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 2pcs Natural Diamonds w/ 2.02 ct Cushion D IF IGI Certificate
Located in רמת גן, IL
A pair of shimmering and sparkling cushion modified brilliant cut natural diamonds in a 2.02 carat
Category

2010s Israeli Loose Gemstones

Materials

Diamond

GIA Certified Graff Fancy Yellow 0.92 Carat Diamond Ring
By Graff
Located in Mayfair, London, London
modified brilliant fancy vivid yellow diamond, laser inscribed 'GRAFF'. The central diamond is claw set
Category

Early 2000s Bridal Rings

Materials

Yellow Diamond, 18k Gold, Yellow Gold

Princess Cut Diamond Halo Engagement Ring in 18 Karat White Gold
Located in Webster, NY
Diamond Carat Weight: Approximately .69CT Center Diamond Cut: Modified Rectangular Cut Center Diamond
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 18k Gold

1.74 Carat GIA I VS1 Octagon Brilliant Unique Diamond Ring
By J. Birnbach
Located in New York, NY
clarity, Octagonal Modified Brilliant diamond center stone with a pave diamond frame and band weighing a
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Platinum

GIA Certified 1.64 Carat Shield Step Cut W to X Range VVS2 Clarity Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC56668 Stone Shape: MODIFIED SHIELD STEP CUT Diamond Weight: 1.64ct
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond, White Diamond, Blue Diamond

Certified 3.25ct Cushion Cut Diamond Platinum Halo Engagement Ring
Located in Miami, FL
, Cushion modified cut Diamond, H-I color & VS2 Clarity.  Complimenting the sides and adding the extra
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Sparkling 1 Pc Natural Diamond with 0.51 Ct D VVS1, IGI Certificate
Located in רמת גן, IL
1 pcs Diamond - 0.51 ct - cut cornered modified rectagular - D (colourless) - VVS1 IGI (IL) 1
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Jona Crossover Fancy Yellow GIA Cert Diamond Gold Cocktail Ring
By Jona
Located in Torino, Piedmont
, Clarity: VVS2 Cut: Cushion Modified Brilliant One diamond is: Size: 1.80ct Color: Fancy Yellow
Category

2010s Italian Cocktail Rings

Materials

Yellow Diamond, 18k Gold

Brilliant 1pc Ideal Cut Natural Diamond w/2.04 ct - GIA Certified
Located in רמת גן, IL
carat modified brilliant cut diamond. The unique cut-cornered rectangular shape offers a modern twist
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Retro GIA 3.01 Carat Cushion Brilliant Diamond Platinum Engagement Ring
Located in Beverly Hills, CA
certified modified cushion brilliant cut diamond of 3.01 carats, accompanied with certificate #6402831303
Category

Vintage 1950s Unknown Retro Engagement Rings

Materials

Diamond, Platinum

Ritani Contemporary 1.55 CTW Diamond 14 Karat Cushion Engagement Ring GIA
By Ritani
Located in Philadelphia, PA
Centering a cushion-modified brilliant diamond weighing approximately 1.00 carat - K color with VS1
Category

21st Century and Contemporary Engagement Rings

Materials

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