Skip to main content

Modified Diamond

to
177
688
411
274
384
193
1,160
166
195
78
74
21
11
147
1,015
4
2
12
10
2
6
5
3
5
17
807
388
7
378
81
73
72
69
to
1
56
40
38
13
11
185
152
56
8
8
8
6
3
3
2
1,200
2
862
83
Sort By
GIA Certified 1.14 Carat Brown - Green Yellow Diamond 18 KT Gold Engagement Ring
GIA Certified 1.14 Carat Brown - Green Yellow Diamond 18 KT Gold Engagement Ring

GIA Certified 1.14 Carat Brown - Green Yellow Diamond 18 KT Gold Engagement Ring

Located in London, GB

- Cornered rectangular modified Diamond situated in the center of the ring featuring 0.80 Carat clarity SI1

Category

2010s British Modern Engagement Rings

Materials

Brown Diamond, Diamond, Yellow Diamond, White Diamond, Gold, 18k Gold, W...

Peter Suchy GIA Certified 3.25 Carat Diamond Yellow Gold Stud Earrings
Peter Suchy GIA Certified 3.25 Carat Diamond Yellow Gold Stud Earrings

Peter Suchy GIA Certified 3.25 Carat Diamond Yellow Gold Stud Earrings

By Peter Suchy

Located in Stamford, CT

cut diamond , U-V SI2 approx. 1.57cts GIA Certificate # 5202867825 1 cushion modified diamond, N I

Category

21st Century and Contemporary Stud Earrings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

EGL 2.03 Ct D/SI3  Cushion Diamond Necklace on diamond by the yard necklace
EGL 2.03 Ct D/SI3  Cushion Diamond Necklace on diamond by the yard necklace

EGL 2.03 Ct D/SI3 Cushion Diamond Necklace on diamond by the yard necklace

By Sebastian Bernard

Located in Los Angeles, CA

A D/SI3 EGL Certified 2.03 Ct Cushion Modified diamonds sits in the center of a Beautiful

Category

2010s American Pendant Necklaces

Materials

Diamond, 18k Gold

FRED - Glory ring in white gold and diamonds
FRED - Glory ring in white gold and diamonds

FRED - Glory ring in white gold and diamonds

By Fred

Located in PARIS, FR

and timeless model. - Condition: excellent. - Finger size: 53 (can be modified) - Diamond weight

Category

Early 2000s French Fashion Rings

Materials

Diamond, 18k Gold, White Gold

Peter Suchy GIA Certified 1.42 Carat Diamond Platinum Engagement Ring
Peter Suchy GIA Certified 1.42 Carat Diamond Platinum Engagement Ring

Peter Suchy GIA Certified 1.42 Carat Diamond Platinum Engagement Ring

By Peter Suchy

Located in Stamford, CT

Peter Suchy Workshop. 1 cut corner natural fancy deep brownish yellow rectangular modified diamond

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Yellow Diamond, Brown Diamond, Platinum

GIA Certified Rectangular Modified Brilliant Loose Diamond 1.00ct
GIA Certified Rectangular Modified Brilliant Loose Diamond 1.00ct

GIA Certified Rectangular Modified Brilliant Loose Diamond 1.00ct

Located in Laguna Beach, CA

This loose rectangular modified brilliant diamond has a carat weight of 1.0, IF - internally

Category

Late 20th Century Loose Gemstones

Materials

Diamond

1pc. Glittering 4.01 Cushion Modified Brilliant Natural Diamond
1pc. Glittering 4.01 Cushion Modified Brilliant Natural Diamond

1pc. Glittering 4.01 Cushion Modified Brilliant Natural Diamond

Located in רמת גן, IL

This stunning diamond is sure to turn heads. It features a sparkling 4.01 carat cushion modified

Category

2010s Israeli Loose Gemstones

Materials

Diamond

Certified Lucere - Modified Emerald 1.03ct Diamond Ring with Diamond Shoulders
Certified Lucere - Modified Emerald 1.03ct Diamond Ring with Diamond Shoulders

Certified Lucere - Modified Emerald 1.03ct Diamond Ring with Diamond Shoulders

Located in London, GB

Prepare to be captivated by the extraordinary sparkle of this Lucere® Cut diamond ring, a design

Category

2010s British Modern Bridal Rings

Materials

White Diamond, Diamond, White Gold, 18k Gold

Classic 1ct. Square Modified Brilliant Solitaire Diamond Ring
Classic 1ct. Square Modified Brilliant Solitaire Diamond Ring

Classic 1ct. Square Modified Brilliant Solitaire Diamond Ring

Located in רמת גן, IL

Product Details: ~Metal: 18K Yellow Gold Main stone: 1ct square modified brilliant natural

Category

2010s Israeli Loose Gemstones

Materials

Diamond

Exquisite 1.94ct Cushion Modified Brilliant Diamond Stud Earrings
Exquisite 1.94ct Cushion Modified Brilliant Diamond Stud Earrings

Exquisite 1.94ct Cushion Modified Brilliant Diamond Stud Earrings

Located in רמת גן, IL

and steal the show. The centerpieces are two dazzling 1.61 carat cushion modified brilliant diamonds

Category

2010s Israeli Stud Earrings

Materials

Diamond, 18k Gold, White Gold

4.63 Carat SI/H Oval Emerald Cut Diamond Earrings 18k White Gold Fine Jewelry
4.63 Carat SI/H Oval Emerald Cut Diamond Earrings 18k White Gold Fine Jewelry

4.63 Carat SI/H Oval Emerald Cut Diamond Earrings 18k White Gold Fine Jewelry

By Spectrum Jewels

Located in Diera, Dubai

18k gold purity Modify diamond specifications Upgrade diamond quality (VS, VVS) Custom design

Category

21st Century and Contemporary Indian Modern Dangle Earrings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 9.06 Carat Cushion Modified Brilliant Diamond Ring
GIA Certified 9.06 Carat Cushion Modified Brilliant Diamond Ring

GIA Certified 9.06 Carat Cushion Modified Brilliant Diamond Ring

Located in Chicago, IL

An exceptional and highly impressive ring centered on a GIA-certified 9.06 carat cushion modified

Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA Certified 4.02 Carat Rectangular Modified Brilliant Diamond Ring
GIA Certified 4.02 Carat Rectangular Modified Brilliant Diamond Ring

GIA Certified 4.02 Carat Rectangular Modified Brilliant Diamond Ring

Located in Chicago, IL

GIA Certified 4.02 Carat Rectangular Modified Brilliant Diamond Ring An exceptional diamond ring

Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Platinum

Natural Diamond Drop Earrings SI/H Clarity 14k White Gold Dangle HRD Certified
Natural Diamond Drop Earrings SI/H Clarity 14k White Gold Dangle HRD Certified

Natural Diamond Drop Earrings SI/H Clarity 14k White Gold Dangle HRD Certified

By Spectrum Jewels

Located in Diera, Dubai

White Gold Select 10k, 14k, or 18k gold purity Modify diamond size and quantity Upgrade diamond quality

Category

21st Century and Contemporary Indian Modern Dangle Earrings

Materials

Diamond, White Gold, 14k Gold

1pc. Sparkling 1.5 Carat Square Modified Brilliant Natural Diamond
1pc. Sparkling 1.5 Carat Square Modified Brilliant Natural Diamond

1pc. Sparkling 1.5 Carat Square Modified Brilliant Natural Diamond

Located in רמת גן, IL

This is a 1.5 carat G VS1 very good polish and good symmetry square modified brilliant diamond. It

Category

2010s Israeli Loose Gemstones

Materials

Diamond

1pc Sparkling 2.01 Cushion Modified Brilliant Cut Natural Diamond
1pc Sparkling 2.01 Cushion Modified Brilliant Cut Natural Diamond

1pc Sparkling 2.01 Cushion Modified Brilliant Cut Natural Diamond

Located in רמת גן, IL

This stunning cushion modified brilliant cut diamond is a rare and valuable gem. It is perfectly

Category

2010s Israeli Loose Gemstones

Materials

Diamond

1pc Sparkling 1ct Square Modified Brilliant Cut Natural Diamond
1pc Sparkling 1ct Square Modified Brilliant Cut Natural Diamond

1pc Sparkling 1ct Square Modified Brilliant Cut Natural Diamond

Located in רמת גן, IL

This stunning square modified brilliant cut diamond is a rare and valuable gem. It is perfectly cut

Category

2010s Israeli Loose Gemstones

Materials

Diamond

GIA Certified 6.05 Carat Square Modified Brilliant Diamond Platinum Ring
GIA Certified 6.05 Carat Square Modified Brilliant Diamond Platinum Ring

GIA Certified 6.05 Carat Square Modified Brilliant Diamond Platinum Ring

By Antinori Fine Jewels

Located in Chicago, IL

GIA Certified 6.05 Carat Square Modified Brilliant Diamond Platinum Ring An extraordinary

Category

2010s Italian Contemporary Solitaire Rings

Materials

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

GIA Certified 5 Carat Fancy Yellow Cushion Diamond Ring
GIA Certified 5 Carat Fancy Yellow Cushion Diamond Ring

GIA Certified 5 Carat Fancy Yellow Cushion Diamond Ring

By Antinori Fine Jewels

Located in Chicago, IL

This exquisite ring features a stunning 5 ct Cushion Modified diamond that exudes a captivating

Category

2010s Unknown Contemporary Engagement Rings

Materials

Diamond, Yellow Diamond

1.02ct Cushion Cut Modified Brilliant Light Yellow Diamond Ring
1.02ct Cushion Cut Modified Brilliant Light Yellow Diamond Ring

1.02ct Cushion Cut Modified Brilliant Light Yellow Diamond Ring

Located in Hong Kong, HK

Center Stone: 1.02ct Cushion Cut Modified Brilliant Diamond with GIA Certificate 7442538933 Center

Category

2010s Hong Kong Modern Fashion Rings

Materials

Yellow Diamond, 18k Gold, White Gold

GIA Certified 6.02 Carat F/VS2 Rectangular Modified Brilliant Diamond Ring
GIA Certified 6.02 Carat F/VS2 Rectangular Modified Brilliant Diamond Ring

GIA Certified 6.02 Carat F/VS2 Rectangular Modified Brilliant Diamond Ring

Located in Chicago, IL

GIA Certified 6.02 Carat F/VS2 Rectangular Modified Brilliant Diamond Ring This breathtaking 6.02

Category

2010s American Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 3.13 Carat F IFlawless Square Modified Brilliant Diamond Ring
GIA Certified 3.13 Carat F IFlawless Square Modified Brilliant Diamond Ring

GIA Certified 3.13 Carat F IFlawless Square Modified Brilliant Diamond Ring

By Antinori Fine Jewels

Located in Chicago, IL

square modified brilliant diamond, combining precision, rarity, and modern elegance. The center diamond

Category

2010s Italian Contemporary Engagement Rings

Materials

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

Denise Roberge Modified 18K Yellow Gold and Diamond Cross Pendant #22474
Denise Roberge Modified 18K Yellow Gold and Diamond Cross Pendant #22474

Denise Roberge Modified 18K Yellow Gold and Diamond Cross Pendant #22474

By Denise Roberge

Located in Washington Depot, CT

Denise Roberge Modified 18K Yellow Gold and Diamond Cross Pendant- This beautifully crafted cross

Category

20th Century Contemporary Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

1 pc Sparkling 3ct Cushion Modified Brilliant Cut Natural Diamond
1 pc Sparkling 3ct Cushion Modified Brilliant Cut Natural Diamond

1 pc Sparkling 3ct Cushion Modified Brilliant Cut Natural Diamond

Located in רמת גן, IL

This stunning cushion modified brilliant cut diamond is a rare and valuable gem. It is perfectly

Category

2010s Israeli Loose Gemstones

Materials

Diamond

GIA Certified 8.02 Carat Fancy Yellow Cushion Modified Brilliant Diamond Ring
GIA Certified 8.02 Carat Fancy Yellow Cushion Modified Brilliant Diamond Ring

GIA Certified 8.02 Carat Fancy Yellow Cushion Modified Brilliant Diamond Ring

By Antinori Fine Jewels

Located in Chicago, IL

GIA Certified 8.02 Carat Fancy Yellow Cushion Modified Brilliant Diamond Ring A breathtaking

Category

2010s American Modern Engagement Rings

Materials

Yellow Diamond, Diamond, Yellow Gold, 18k Gold

18 Karat White Gold 3.78 Carat Diamond Modified-Hoop Earrings
18 Karat White Gold 3.78 Carat Diamond Modified-Hoop Earrings

18 Karat White Gold 3.78 Carat Diamond Modified-Hoop Earrings

By Gems Paradise

Located in Jaipur, IN

18 Karat White Gold 3.78 Carat Diamond Modified-Hoop Earrings The brilliance of diamonds paired

Category

2010s Indian Contemporary Hoop Earrings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 10.03 carats, Square Modified Brilliant Diamond Engagement Ring
GIA Certified 10.03 carats, Square Modified Brilliant Diamond Engagement Ring

GIA Certified 10.03 carats, Square Modified Brilliant Diamond Engagement Ring

By JEWEL HUB

Located in Hong Kong, HK

the Cut-Cornered Square Modified Brilliant Diamond is 10.03 carat. The Diamonds colour is W to X Range

Category

21st Century and Contemporary Hong Kong Art Deco Engagement Rings

Materials

Diamond, Platinum

Rare 1.01 Carat Fancy Vivid Orangy Yellow Diamond Cushion Modified Brilliant GIA
Rare 1.01 Carat Fancy Vivid Orangy Yellow Diamond Cushion Modified Brilliant GIA

Rare 1.01 Carat Fancy Vivid Orangy Yellow Diamond Cushion Modified Brilliant GIA

By Meghna Jewels

Located in Hoffman Estate, IL

This rare 1.01 carat Fancy Vivid Orangy Yellow diamond is defined by exceptional saturation

Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond, Yellow Diamond

GIA Certified 1.27 Carat Horse Modified Brilliant L SI1 Natural Diamond
GIA Certified 1.27 Carat Horse Modified Brilliant L SI1 Natural Diamond

GIA Certified 1.27 Carat Horse Modified Brilliant L SI1 Natural Diamond

Located in New York, NY

ITEM DESCRIPTION ID #: NYC56550 Stone Shape: HORSE MODIFIED BRILLIANT Diamond Weight: 1.27ct

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond, White Diamond

GIA Certified 1.49 Carat Fancy Chameleon Si2 Modified Shield Step Cut Diamond
GIA Certified 1.49 Carat Fancy Chameleon Si2 Modified Shield Step Cut Diamond

GIA Certified 1.49 Carat Fancy Chameleon Si2 Modified Shield Step Cut Diamond

Located in New York, NY

ITEM DESCRIPTION ID #: NYC56544 Stone Shape: MODIFIED SHIELD STEP CUT Diamond Weight: 1.49 CT

Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond, White Diamond, Brown Diamond

18 Karat Yellow Gold 2.03 Carat Diamond Contemporary Modified-Hoop Earrings
18 Karat Yellow Gold 2.03 Carat Diamond Contemporary Modified-Hoop Earrings

18 Karat Yellow Gold 2.03 Carat Diamond Contemporary Modified-Hoop Earrings

By Gems Paradise

Located in Jaipur, IN

18 Karat Yellow Gold 2.03 Carat Diamond Contemporary Modified-Hoop Earrings This glamorous round

Category

2010s Indian Modern Hoop Earrings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

18 Karat Gold 14.12 Carat Briolette and Brilliant-Cut Diamond Modified Hoops
18 Karat Gold 14.12 Carat Briolette and Brilliant-Cut Diamond Modified Hoops

18 Karat Gold 14.12 Carat Briolette and Brilliant-Cut Diamond Modified Hoops

By Gems Paradise

Located in Jaipur, IN

18 Karat Gold 14.12 Carat Fancy Briolette and Brilliant-Cut Diamond Modified Hoop Earrings Elevate

Category

2010s Indian Contemporary Hoop Earrings

Materials

Diamond, 18k Gold

Roman Malakov 0.54 Carat Modified Pear Shape Diamond Solitaire Pendant Necklace
Roman Malakov 0.54 Carat Modified Pear Shape Diamond Solitaire Pendant Necklace

Roman Malakov 0.54 Carat Modified Pear Shape Diamond Solitaire Pendant Necklace

By Roman Malakov

Located in New York, NY

A simple solitaire pendant necklace, showcasing a 0.54 carat seven-sided pear shape diamond with K

Category

21st Century and Contemporary American Contemporary Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

14k White Gold 0.34 Carat Modified Step Cut Shield Natural Diamond Necklace
14k White Gold 0.34 Carat Modified Step Cut Shield Natural Diamond Necklace

14k White Gold 0.34 Carat Modified Step Cut Shield Natural Diamond Necklace

Located in Houston, TX

This unique diamond pendant necklace features a 0.34 carat modified step cut shield natural diamond

Category

21st Century and Contemporary American Pendant Necklaces

Materials

Diamond, Gold, 14k Gold, White Gold

GIA 2.01 Carat Cushion Modified Brilliant Cut Diamond 14k White Gold Ring
GIA 2.01 Carat Cushion Modified Brilliant Cut Diamond 14k White Gold Ring

GIA 2.01 Carat Cushion Modified Brilliant Cut Diamond 14k White Gold Ring

Located in Beverly Hills, CA

One GIA 2.01 Carat Cushion Modified Brilliant Cut Diamond 14k White Gold Ring. Featuring one GIA

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Gold, 14k Gold, White Gold

Gia Certified 1.27ct Horse Modified Brilliant L SI1 Diamond Ring in 18k Gold
Gia Certified 1.27ct Horse Modified Brilliant L SI1 Diamond Ring in 18k Gold

Gia Certified 1.27ct Horse Modified Brilliant L SI1 Diamond Ring in 18k Gold

Located in New York, NY

diamond at its center, showcasing a horse modified brilliant cut that reflects light with exceptional

Category

21st Century and Contemporary North American Modern Signet Rings

Materials

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

Art Deco 18 Karat White Gold Modified Round Brilliant Cut Diamond Ring
Art Deco 18 Karat White Gold Modified Round Brilliant Cut Diamond Ring

Art Deco 18 Karat White Gold Modified Round Brilliant Cut Diamond Ring

Located in Addison, TX

This gorgeous 18 karat white gold Art Deco vintage engagement ring features a modified round

Category

Early 20th Century Unknown Art Deco Engagement Rings

Materials

Diamond, White Gold, 18k Gold

18 Karat Rose Gold 6.38 Carat Ruby and Diamond Modified Hoop Earrings
18 Karat Rose Gold 6.38 Carat Ruby and Diamond Modified Hoop Earrings

18 Karat Rose Gold 6.38 Carat Ruby and Diamond Modified Hoop Earrings

By Gems Paradise

Located in Jaipur, IN

18 Karat Rose Gold 6.38 Carat Ruby and Diamond Modified Hoop Earrings This exceptional vivid red

Category

2010s Indian Contemporary Hoop Earrings

Materials

Diamond, Ruby, Gold, 18k Gold, Rose Gold

White Gold Blue Topaz & Diamond Ring - 14k Modified Barrel 8.02ctw East-West
White Gold Blue Topaz & Diamond Ring - 14k Modified Barrel 8.02ctw East-West

White Gold Blue Topaz & Diamond Ring - 14k Modified Barrel 8.02ctw East-West

Located in Greensboro, NC

: Modified Barrel Natural Diamonds Carat(s): .12ctw Cut: Single Color: H - I Clarity: SI1 - SI2 Total

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Topaz, Blue Topaz, 14k Gold, White 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 ringsvintage engagement rings or Art Deco engagement rings

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