Skip to main content

Modified Diamond

to
175
675
401
390
262
189
1,154
166
201
77
65
21
11
144
1,013
4
2
12
10
2
6
5
3
5
15
797
393
7
382
79
76
70
66
to
1
60
42
36
13
10
182
144
54
8
8
8
6
3
3
2
1,195
2
861
83
Sort By
GIA Loose Natural Fancy Vivid Yellow Diamond 0.52ct
Located in SYDNEY, NSW
modified brilliant diamond boasts an even colour distribution and a clarity grade of VVS2, with Very Good
Category

21st Century and Contemporary Loose Gemstones

Materials

Yellow Diamond, White Gold

GIA Certified 11.02-carat Cut-Cornered Rectangular Diamond Ring
By Antinori Fine Jewels
Located in Chicago, IL
Introducing an extraordinary 11.02-carat Cut-Cornered Rectangular Modified Brilliant Diamond
Category

2010s Italian Contemporary Three-Stone Rings

Materials

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

GIA Certified 4.13 Carat Cushion Brilliant Diamond Ring
Located in Chicago, IL
GIA Certified 4.13-carat Cushion Modified Brilliant Cut diamond, graded E color and VS2 clarity — a
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA Certified Cushion Cut Diamond Stud Earrings in Platinum E/F
By Antinori Fine Jewels
Located in Chicago, IL
Modified Brilliant diamonds, each weighing 5 carats, for an impressive total weight of 10 carats. The
Category

2010s Italian Modern Stud Earrings

Materials

Diamond, White Diamond, Platinum

GIA Certified 7.06 Carat Fancy Yellow Heart-Shaped Diamond Necklace
Located in Chicago, IL
GIA-certified Fancy Yellow Heart Modified Brilliant diamond (GIA 1226873686), of natural color origin
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, Yellow Diamond, Platinum

GIA Certified 6.39 Carat Fancy Yellow Cushion-Cut Diamond Stud Earrings
By Antinori Fine Jewels
Located in Chicago, IL
GIA Certified Natural Fancy Yellow Cushion Modified Brilliant diamonds, perfectly matched in size
Category

2010s Italian Clip-on Earrings

Materials

Diamond, Yellow Diamond, 18k Gold

GIA Certified 6.02 Carat F VS1 Cut-Cornered Square Diamond Ring
By Antinori Fine Jewels
Located in Chicago, IL
GIA Certified 6.02 Carat F VS1 Cut-Cornered Square Modified Brilliant Diamond Ring Set with
Category

2010s Italian Modern Engagement Rings

Materials

White Diamond, Diamond, 18k Gold

Tiffany Co. D Color Cushion Diamond Engagement Ring in Platinum
By Tiffany Co.
Located in Chicago, IL
This exquisite Tiffany Co. engagement ring features a stunning 1.60 carat cushion modified
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified Loose 3.74ct Radiant Cut Natural Diamond E - SI2
Located in Carmel By The Sea, CA
GIA Certified 3.74ct Cut-Cornered Rectangular Modified Brilliant Diamond E, SI2 Description: This
Category

2010s Loose Gemstones

Materials

Diamond

Dazzling 0.7 Carat Cushion Diamond Ring
Located in רמת גן, IL
sparkle shine bright. 1 diamond main stone of 0.7 carat cut: cushion modified brilliant color: H clarity
Category

2010s Israeli Cocktail Rings

Materials

Diamond, 18k Gold, Yellow Gold

GIA Certified 31 Carat Fancy Vivid Yellow Cushion Diamond Ring
By Antinori Fine Jewels
Located in Chicago, IL
breathtaking 31.04-carat Fancy Vivid Yellow diamond, cushion modified brilliant cut, exhibiting even color
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Yellow Diamond, Gold, 18k Gold, Yellow Gold, Platinum

3.4 Carat Pink Halo Green Heart Diamond Engagement Ring
By Rare Colors
Located in New York, NY
This rare 3.42-carat Fancy Grayish Yellowish Green heart-modified brilliant diamond stands at the
Category

2010s American Modern Engagement Rings

Materials

Yellow Diamond, Pink Diamond, 18k Gold, Rose Gold

GIA Certified 5 Carat Heart Cut Diamond Fancy Intense Yellow Necklace
By Antinori Fine Jewels
Located in Chicago, IL
This exquisite pendant necklace features a breathtaking 5-carat heart-shaped modified brilliant
Category

2010s American Contemporary Pendant Necklaces

Materials

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

GIA Certified 1.03 Carat M I1 Pear Shape Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC56384 Stone Shape: PEAR MODIFIED STEP CUT Diamond Weight: 1.03 CT Color
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond, White Diamond, Blue Diamond

Boucheron Princess Cut Diamond Stud Yellow Gold Earrings
By Boucheron
Located in Feasterville, PA
. The Boucheron diamond stud earrings showcaase a .53ct square modified brilliant D color VVS2 diamond
Category

Early 2000s Stud Earrings

Materials

Diamond, Yellow Gold

Bvlgari GIA Sapphire Diamond Bulgari Three-Stone Ring
By Bulgari
Located in Miami, FL
Diamonds Shape/Cut: Modified Brilliant Pear-Shaped Total Weight: 0.60 carats (0.30 ct each) Color Grade: F
Category

1990s European Three-Stone Rings

Materials

Diamond, Sapphire, 18k Gold

Tiffany Co. Soleste Platinum Cushion Diamond Double Halo Engagement Ring
By Tiffany Co.
Located in Chicago, IL
natural cushion modified brilliant cut diamond, weighing 2.04 carats, graded G color, VS1 clarity
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

Stunning 1.01 Carat Square Cushion Natural Diamond
Located in רמת גן, IL
1.01 Carat D IF Square Cushion Modified Brilliant Cut Natural Diamond with IGI Certificate and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

GIA Certified 6.24 Carat Fancy Light Yellow Cushion-Cut Diamond Stud Earrings
By Antinori Fine Jewels
Located in Chicago, IL
GIA Certified 6.24 Carat Fancy Light Yellow Cushion-Cut Diamond Stud Earrings in 18K Yellow Gold
Category

2010s Italian Modern Clip-on Earrings

Materials

Diamond, Yellow Diamond

Tiffany Co., Soleste 2.10 Carat Fancy Intense Yellow Diamond Engagement Ring
By Tiffany Co.
Located in Chicago, IL
Diamond cut: Modified Brilliant Cushion Carat: 2.10 carats Measurements: 8.15 x 6.66 x 4.58 mm
Category

Early 2000s American Contemporary Engagement Rings

Materials

Diamond, Yellow Diamond, Platinum, 18k Gold, Yellow Gold

12.25 Carats Sapphire Diamond Cocktail Ring
Located in New York, NY
mm), with four near-colorless tapered baguette diamonds and two modified kite step-cuts; mounted on
Category

Late 20th Century Malagasy Cocktail Rings

Materials

Diamond, Sapphire, Platinum

GIA Certified 5.40 carat Fancy Yellow Diamond Ring
By Antinori Fine Jewels
Located in Chicago, IL
nature’s most coveted hues. Cut in a Cut-Cornered Rectangular Modified Brilliant shape, the diamond
Category

2010s American Contemporary Engagement Rings

Materials

Yellow Diamond, Gold, Platinum

GIA Certified 6.03 Carat Fancy Intense Yellow VS1 Cushion Cut Diamond Ring
Located in Chicago, IL
Cushion Modified Brilliant diamond of Fancy Intense Yellow color, Natural origin, and VS1 clarity — a
Category

2010s American Engagement Rings

Materials

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

GIA Certified Cushion Cut Diamond Pave Engagement Ring
By Antinori Fine Jewels
Located in Chicago, IL
1.01 ct 14K White Gold Cushion Modified Brilliant Cut Diamond Split Shank Engagement Ring. The
Category

2010s Italian Modern Solitaire Rings

Materials

Diamond, White Diamond, 14k Gold, White Gold

Tiffany Co. 1.51 Carat Lucida Diamond Platinum Engagement Ring
By Tiffany Co.
Located in Chicago, IL
GIA Certified Tiffany & Co. 1.51 Carat Lucida Diamond Platinum Engagement Ring An iconic Tiffany
Category

2010s American Band Rings

Materials

Diamond, Platinum

Antique Edwardian 1910s 5.00 Carat Diamond Brooch with Onyx
Located in New York, NY
Finely crafted in platinum with a Modified Square cut Diamond at the center weighing approximately
Category

Vintage 1910s Edwardian Brooches

Materials

Diamond, Onyx, Platinum

GIA Certified 4.02 Carat Fancy Yellow Oval Diamond Ring
Located in Chicago, IL
4.02 carat Fancy Yellow oval modified brilliant diamond, distinguished by its even color distribution
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, 18k Gold, Platinum

GIA Certified 2.00 Carat Fancy Yellow Diamond Ring
By Diana M. Jewels
Located in New York, NY
18 karat white gold diamond engagement ring with natural fancy yellow cushion modified brilliant
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold

GIA Certified 5.02 Carat Fancy Yellow Heart Diamond Double Halo Ring
By Antinori Fine Jewels
Located in Chicago, IL
showcases a GIA Certified 5.02 carat Heart Modified Brilliant Diamond of Fancy Yellow color, VVS2 clarity
Category

2010s Italian Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 6 Carat Fancy Yellow Cushion Diamond Yellow Gold Ring
Located in Chicago, IL
This exceptional ring features a GIA Certified 6.02-carat Fancy Yellow Cushion Modified Brilliant
Category

2010s American Contemporary Band Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Yellow Gold

Tiffany Co. True 2.27 Carat H/VS1 Platinum Diamond Engagement Ring
By Tiffany Co.
Located in Chicago, IL
highlight the beauty of the diamond. This ring showcases a square-modified brilliant Tiffany True diamond
Category

2010s American Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

NALLY 1.92 Carat GIA Cushion Diamond Ring
Located in New York, NY
total weight 0.45ct, center stone: 1.92ct cushion modified brilliant cut diamond, color: E, clarity: VS1
Category

21st Century and Contemporary American Artist Engagement Rings

Materials

Diamond, Platinum

Roberto Coin 18k Gold Cento Two Diamond Circle Ring circa 2004
By Roberto Coin Cento
Located in Scottsdale, AZ
design adorned with central round modified brilliant diamonds inside weighing approximately 0.52 carats
Category

Early 2000s Fashion Rings

Materials

Diamond, 18k Gold

GIA Certified Argyle Fancy Intense 0.26 Carat Princess Cut Loose Diamond
Located in Miami, FL
GIA-certified 0.26 carat natural fancy intense Argyle pink diamond in square modified brilliant
Category

21st Century and Contemporary Modern Loose Gemstones

Materials

Pink Diamond

GIA 5.05 Carat Bezel Set Cushion Cut Diamond Engagement Ring
Located in Beverly Hills, CA
5.05-carat cushion-modified brilliant diamond is secure and adds a modern touch to the classic halo
Category

21st Century and Contemporary Unknown Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

Platinum 18k Gold GIA Intense Yellow Cushion Pink HalfMoon Diamond Custom Ring
Located in Montclair, NJ
Halo Diamonds ! Must see! --Stone(s):-- (1) Natural Genuine Diamond - Cushion Modified Brilliant Cut
Category

21st Century and Contemporary Cocktail Rings

Materials

Pink Diamond, Yellow Diamond, Diamond, Platinum, Yellow Gold, Rose Gold,...

GIA Certified 4 Carat Fancy Yellow Cushion Diamond 18k Yellow Gold Studs
By Antinori Fine Jewels
Located in Chicago, IL
Fancy Yellow diamonds, expertly set in rich 18k yellow gold. Each cushion-modified brilliant diamond
Category

2010s Italian Modern Stud Earrings

Materials

Diamond, Yellow Diamond, 18k Gold, Yellow Gold

2 Carat Princess Cut Rectangular Brilliant Diamond Engagement Ring
By Antinori Fine Jewels
Located in Chicago, IL
Modified Brilliant Cut diamond as the centerpiece. With F color, SI1 clarity, and excellent polish, this
Category

2010s Unknown Contemporary Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

Yellow Gold Men s Ring With Illusion Set Center Diamonds - Size 9
Located in Scottsdale, AZ
by modified baguette diamonds to give the illusion of the center stone being larger. Additionally, it
Category

Vintage 1980s Signet Rings

Materials

Diamond, Gold, Yellow Gold

GIA Certified 5.32 Carat Fancy Yellow VS2 Diamond Ring with Tapered Baguettes
By Antinori Fine Jewels
Located in Chicago, IL
hue with even color distribution. This exquisite cut-cornered square modified brilliant diamond
Category

2010s Italian Contemporary Engagement Rings

Materials

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

GIA Certified 3.01 Carat Fancy Yellow Cushion Cut Diamond Double Halo Ring
By Antinori Fine Jewels
Located in Chicago, IL
ring centers a GIA certified 3.01 carat cushion modified brilliant diamond, graded Fancy Yellow color
Category

2010s American Modern Engagement Rings

Materials

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

Tiffany Co. Rare Large Enchanted Bloom Diamond Key Pendant 2.30ct TDW 44206721
Located in Mayfair, London, London
A beautiful platinum and yellow gold Enchanted Bloom diamond pendant by Tiffany & Co. from the
Category

2010s American Pendant Necklaces

Materials

Diamond

GIA Certified 8.64 Carat Cushion Cut Diamond 18K Yellow Gold Ring
By Antinori Fine Jewels
Located in Chicago, IL
Exquisite 8.64 Carat Cushion Modified Brilliant Cut Diamond Solitaire Ring in 18K Yellow Gold This
Category

2010s Unknown Contemporary Solitaire Rings

Materials

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

Rare GIA Certified 1.53 Carat Buddha N SI2 Natural Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC55300 Stone Shape: BUDDHA MODIFIED BRILLIANT Diamond Weight: 1.53 CT
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond, White Diamond, Blue Diamond

GIA Certified Platinum 15 Carat Fancy Intense Enhanced Pink Diamond Ring
Located in Antwerp, BE
Diamond ! Oval Diamond Weight 15,08 Ct Color : Fancy Intense Pink Clarity : VS1 Cut : Oval Modified
Category

21st Century and Contemporary Belgian Artisan Wedding Rings

Materials

Pink Diamond, Platinum

GIA Certified 1.76ct Fancy Brownish Yellow Si1 Oval Brilliant Natural Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC56661 Stone Shape: OVAL MODIFIED BRILLIANT Diamond Weight: 1.76 CT Color
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond, White Diamond, Yellow Diamond, Brown Diamond

GIA Certified 2.15 CT Diamond Platinum Engagement Ring
Located in Westport, CT
modified brilliant cut diamond weighing 0.90 CT, E color, VVS2 clarity. Set on a uniquely designed double
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA Certified 2.01 Carat Fancy Intense Yellow VS1 Oval Diamond Ring
Located in Chicago, IL
A dazzling GIA Certified 2.01 carat Fancy Intense Yellow oval modified brilliant diamond takes
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Yellow Gold, Platinum

GIA Certified 4.03-carat GIA-certified Fancy Intense Yellow diamond ring
By Antinori Fine Jewels
Located in Chicago, IL
A 4.03-carat GIA-certified Fancy Intense Yellow diamond, Cushion Modified Brilliant, glowing with a
Category

2010s American Contemporary Engagement Rings

Materials

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

GIA Certified 10 Carat Radiant Cut Fancy Yellow Diamond with Trapezoid on side
By Antinori Fine Jewels
Located in Chicago, IL
An exceptional Fancy Yellow diamond ring, centered by a 10.14 carat cut-cornered square modified
Category

2010s American Contemporary Three-Stone Rings

Materials

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

GIA Fancy Intense Yellow 6.60 carat Diamond Platinum Eternity Ring
Located in Miami, FL
This stunning piece features a breathtaking array of GIA-certified square-modified brilliant fancy
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

GIA Certified 6.16 Carat Fancy Yellow Diamond Platinum 18K Yellow Gold Ring
By Antinori Fine Jewels
Located in Chicago, IL
vibrant diamond ring featuring a GIA Certified 6.16 Carat Cut-Cornered Square Modified Brilliant Diamond
Category

2010s Italian Contemporary Engagement Rings

Materials

Yellow Diamond, Diamond, White Diamond, Yellow Gold, Gold, 18k Gold, Whi...

Enlightenment Double Row Emerald and fancy cut diamond ring in white gold
By Ri Noor
Located in Houston, TX
striking modified emerald-cut natural diamond, and a radiant rose-cut pear-shaped diamond, it balances
Category

2010s Engagement Rings

Materials

Diamond, Emerald

Exquisite 2.31ct Diamond Ring with GIA Certificate
Located in רמת גן, IL
centerpiece is a dazzling 1.5 carat cushion modified brilliant diamond, boasting the coveted D color
Category

2010s Israeli Engagement Rings

Materials

Diamond, 18k Gold, White Gold

GIA 0.90 Carat Oval Step Cut White Diamond East West Solitaire Ring in 18K
Located in Los Angeles, CA
Beautiful 0.90 ct. K VVS2 white diamond modified oval. Ring size 6.5. Comes with GIA certificate.
Category

21st Century and Contemporary Solitaire Rings

Materials

White Diamond

Boodles, 11.30 Carats Ashoka Three Stone Diamond Engagement Ring
By Boodles
Located in Chicago, IL
Designer: Boodles Diamond cut: Ashoka ( Round-Cornered Rectangular Modified Brilliant) Center
Category

21st Century and Contemporary British Contemporary Engagement Rings

Materials

Diamond, Gold, 18k Gold, Rose Gold

GIA Certified 10.01 Carat Oval Cut Fancy Yellow Diamond Ring in 18K Gold
By Antinori Fine Jewels
Located in Chicago, IL
GIA-certified 10.01 carat oval modified brilliant cut diamond, distinguished by its even color
Category

2010s American Contemporary Engagement Rings

Materials

Yellow Diamond, White Diamond, Diamond, Yellow Gold, White Gold, 18k Gol...

  • 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 ringsvintage engagement rings or Art Deco engagement rings

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