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14K White Gold Square Modified Diamond Ring
Located in Laguna Beach, CA
Ladies' engagement ring with square modified brilliant center diamond in 14k white gold setting
Category

Mid-20th Century Engagement Rings

Materials

Diamond, 14k Gold, White Gold

Platinum Solitaire Diamond Ring Set with 0.62ct H/VVS2 Square Modified Diamond
By Unbranded
Located in London, GB
An elegant Diamond ring for your engagement, this Platinum ring features a 0.62ct Square Brilliant
Category

2010s British Engagement Rings

Materials

Diamond, Platinum

1 pc Natural Diamond - 0.50 ct - Radiant - I - VS1- GIA Certificate
Located in רמת גן, IL
Natural Cut-Cornered Rectangular modified diamond in a 0.50 carat I VS2 with Beautiful cut and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1pc Natural Diamond with 0.70ct Cushion D IF IGI Certificate
Located in רמת גן, IL
A sparkling natural cut cushion modified diamond in a 0.7 carat D IF with excellent cut. This
Category

2010s Israeli Engagement Rings

Materials

Diamond

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

Diamond, White Diamond, Yellow Diamond, Brown Diamond, Gold, White Gold,...

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

GIA Certified 12.45 Carat Fancy Yellow Cushion Cut Diamond Platinum Ring
By Antinori Fine Jewels
Located in Chicago, IL
Unparalleled luxury with our remarkable GIA Certified 12.45 Carat Cushion Modified Diamond. Graced
Category

2010s Unknown Contemporary Engagement Rings

Materials

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

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
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

Glamorous 18k Yellow Gold Solitaire Ring w/ 1.02 Carat Natural Diamonds IGI Cert
Located in רמת גן, IL
A classic solitaire engagement ring with a dazzling 1.02-carat cushion-modified diamond. The
Category

2010s Israeli Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold

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

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
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

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

Sparkling 1.01 Carat Cushion Modified Brilliant Cut Natural Diamond
Located in רמת גן, IL
This stunning 1.01 carat E VVS1 cushion modified brilliant cut natural diamond is sure to turn
Category

2010s Israeli Loose Gemstones

Materials

Diamond

GIA Reporft Certified Cut-Cornered Rectangular Modified Brilliant Diamond
Located in Surfside, FL
GIA report certified cut-cornered rectangular modified brilliant diamond, 1 carat (F color, VS2
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

0.50 Carat Square Modified Brilliant Cut Diamond Engagement Ring
Located in London, GB
Here we have a platinum engagement ring featuring a stunning square modified brilliant-cut diamond
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

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

Yellow Diamond, 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

0.52 Carat Square Modified Brilliant Diamond Solitaire Engagement Ring
Located in London, GB
This is an 18ct white gold diamond solitaire ring. The central diamond is a square modified
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Gold, White Gold

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

14K Tanzanite & Diamond Pendant Necklace, Modified Triangular Brilliant Tanzanit
Located in Holtsville, NY
Enhance your jewelry collection with this 14K Yellow Gold Tanzanite & Diamond Pendant Necklace
Category

2010s American Artist Pendant Necklaces

Materials

Diamond, Tanzanite, 14k Gold, Yellow Gold

GIA Certified Square Modified Brilliant Cut Diamond 2.03 Carat
Located in Surfside, FL
ESTIMATED RETAIL: $45,750.00 G&S PRICE: $34,160.00 GIA certified square modified brilliant cut
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

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

14K 13.74ctw Sapphire & Diamond Link Bracelet, Oval Modified Brilliant Sapphire
Located in Holtsville, NY
This stunning 14K Yellow Gold Link Bracelet features 13.74 Carats of Oval Modified Brilliant Blue
Category

2010s American Artist Link Bracelets

Materials

Diamond, Sapphire, 14k Gold, Yellow Gold

GIA Report Certified Cut-Cornered Rectangular Modified Brilliant Cut Diamond
Located in Surfside, FL
GIA report certified engagement ring cut-cornered rectangular modified brilliant cut diamond 1.01
Category

20th Century Engagement Rings

Materials

Diamond, White Gold

14K 3.68ct Tourmaline & Diamond Drop Earrings Pear Modified Brilliant Tourmal
Located in Holtsville, NY
combination of 3.68 Carat Pear Modified Brilliant Tourmaline and sparkling diamonds. Crafted in luxurious 14K
Category

2010s American Artist Drop Earrings

Materials

Diamond, Tourmaline, 14k Gold, Yellow Gold

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

14K 3.63ct Emerald, Sapphire & Diamond Pendant Necklace, Pear Modified Brilliant
Located in Holtsville, NY
moderately strong saturation. Accentuating its beauty are shimmering diamonds and sparkling sapphires in a
Category

2010s American Artist Pendant Necklaces

Materials

Diamond, Emerald, Sapphire, 14k Gold, Yellow Gold

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

White Gold Blue Topaz & Diamond Ring - 10k Modified Round 3.25ctw
Located in Greensboro, NC
Blue Topaz Treatment: Routinely Enhanced Carat(s): 3.05ct Cut: Modified Round Natural Diamonds Carat(s
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Topaz, Blue Topaz, 10k Gold, White Gold

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

Exquisite Cushion Modified Brilliant Diamond - 3.51 ct - E Color - VVS1 Clarity
Located in רמת גן, IL
3.51 Carat E VVS1 Cushion Modified Brilliant Cut Natural Diamond This sparkling cushion modified
Category

2010s Israeli Loose Gemstones

Materials

Diamond

GIA Certified Fancy Purplish Pink Natural 0.16ct Pear Modified Brilliant Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC58605 Stone Shape: Pear Diamond Weight: 0.16ctw Fancy Color: Fancy
Category

21st Century and Contemporary Loose Gemstones

Materials

Pink Diamond

Sparkling Cushion Modified Brilliant Cut Natural Diamond in a 1.01 Carat
Located in רמת גן, IL
Sparkling Cushion Modified Brilliant Cut Natural Diamond in a 1.01 Carat H VS2 EX Cut with IGI
Category

2010s Israeli Loose Gemstones

Materials

Diamond

GIA Certified 2.69 Carat Pear Modified Brilliant Chameleon I1 Natural Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC57369 Stone Shape: PEAR MODIFIED BRILLIANT Diamond Weight: 2.69ct
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

14K 9.56ctw Emerald & Diamond Cocktail Ring Size 6.75 Pear Modified Brilliant
Located in Holtsville, NY
(8.37 ct) * Side Stones: Pear Modified Brilliant Emeralds (1.19 ct) & Single Cut Diamonds (0.03 ct
Category

2010s American Artist Cocktail Rings

Materials

Diamond, Emerald, 14k Gold

GIA Report Certified Rectangular Modified Brilliant Cut Diamond Ring, 1.49 Carat
Located in Surfside, FL
GIA report certified rectangular modified brilliant cut diamond 1.49 carat (H color, VS2 clarity
Category

20th Century Engagement Rings

Materials

Diamond, Yellow Gold

14K Yellow Gold Kunzite, Sapphire & Diamond Stud Earrings Pear Modified Brilli
Located in Holtsville, NY
, paired with sparkling Pear Modified Brilliant Sapphires and Round Brilliant Diamonds. The earrings are a
Category

2010s American Artist Stud Earrings

Materials

Diamond, Kunzite, Sapphire, 14k Gold, Yellow Gold

14K Yellow Gold 5.93ctw Kunzite & Diamond Stud Earrings Oval Modified Brillian
Located in Holtsville, NY
dazzling combination of kunzite and diamonds. The earrings are centered with 5.93 carats of eye-clean, oval
Category

2010s American Artist Stud Earrings

Materials

Diamond, Kunzite, 14k Gold, Yellow Gold

14K Yellow Gold 2.97ct Tourmaline & Diamond Cocktail Ring Size: 7 Modified
Located in Holtsville, NY
Modified Triangular Brilliant Tourmaline surrounded by sparkling diamonds. This exquisite piece combines
Category

2010s American Artist Cocktail Rings

Materials

Diamond, Tourmaline, Yellow Gold

14K Ruby & Diamond Pendant Necklace 1.70ct Oval Modified Brilliant Ruby 0.08
Located in Holtsville, NY
Modified Brilliant * Stone Color: Red * Saturation: Slightly Brownish * Gemstone: Diamond * Carat Weight
Category

2010s American Artist Pendant Necklaces

Materials

Diamond, Ruby, 14k Gold

Dazzling 1.73ct Cushion Modified Brilliant Natural Diamond in 18K Yellow Gold
Located in רמת גן, IL
modified brilliant natural diamond. Its mesmerizing facets dance with light, creating a symphony of
Category

2010s Israeli Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold

14K Yellow Gold 6.30ctw Kunzite & Diamond Stud Earrings Oval Modified Brillian
Located in Holtsville, NY
stunning pair of Oval Modified Brilliant Kunzite gemstones, totaling 6.30 carats. The soft pink hue of the
Category

2010s American Artist Stud Earrings

Materials

Diamond, Kunzite, 14k Gold, Yellow Gold

14K Yellow Gold Tanzanite & Diamond Drop Earrings Featuring 3.80 Carat Modified
Located in Holtsville, NY
Discover the allure of these exquisite 14K Yellow Gold Tanzanite & Diamond Drop Earrings. Featuring
Category

2010s American Artist Drop Earrings

Materials

Diamond, Tanzanite, 14k Gold, Yellow Gold

Classic 18k White Gold .70ct. Cushion Modified Brilliant Solitaire Diamond Ring
Located in רמת גן, IL
Product Details: ~Metal: 18K White Gold ~Main stone: .70ct cushion modified brilliant natural
Category

2010s Israeli Engagement Rings

Materials

Diamond, White Gold, 18k Gold, Gold

14K Yellow Gold 14.88ctw Emerald & Diamond Pendant Necklace, Pear Modified Brill
Located in Holtsville, NY
dazzling combination of emeralds and diamonds. At its heart lies an impressive 11.98-carat oval cabochon
Category

2010s American Artist Pendant Necklaces

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

14K 7.59ctw Sapphire & Diamond Cocktail Ring Size: 6.75 Pear Modified Brillia
Located in Holtsville, NY
vibrant colors and brilliant diamonds. The centerpiece is a 5.21 carat Cabochon Pear Shaped Blue Sapphire
Category

2010s American Artist Cocktail Rings

Materials

Diamond, Sapphire, 14k Gold, Yellow Gold

14K 5.48ctw Sapphire & Diamond Cocktail Ring Size: 7 Marquise Modified Brillia
Located in Holtsville, NY
Modified Brilliant and Round Brilliant Sapphires, along with sparkling diamonds. This ring is a perfect
Category

2010s American Artist Cocktail Rings

Materials

Sapphire, Diamond, 14k Gold, Yellow Gold

14K Yellow Gold 1.97ct Pear Modified Brilliant Green Tourmaline & Diamond Cockta
Located in Holtsville, NY
This stunning 14K Yellow Gold cocktail ring showcases a vibrant 1.97-carat pear modified brilliant
Category

2010s American Artist Cocktail Rings

Materials

Diamond, Tourmaline, 14k Gold, Yellow Gold

14K Yellow Gold 8.29ctw Emerald & Diamond Pendant Necklace, Pear Modified Brilli
Located in Holtsville, NY
and diamonds. At its center lies a 7.43-carat cabochon oval emerald, radiating a lush green hue with a
Category

2010s American Artist Pendant Necklaces

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

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

14K Yellow Gold 12.41ctw Oval Modified Brilliant Emerald & Diamond Link Bracelet
Located in Holtsville, NY
craftsmanship and elegance. This exquisite bracelet, boasting an impressive 11.66 carats of Oval Modified
Category

2010s American Artist Link Bracelets

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

GSI Certified Classic Solitaire 0.47ctF I1 Round Modified Brilliant Diamond Ring
By Unbranded
Located in London, GB
This Diamond engagement ring features a 0.47ct Round Brilliant Diamond set in a Platinum. The
Category

2010s English More Rings

Materials

Diamond, Platinum

5.08 Carat Cushion Modified Brilliant Cut H VS1 Diamond Platinum Engagement Ring
Located in New York, NY
Title: 5.08 Carat Cushion Modified Brilliant Cut H VS1 Diamond Platinum Engagement Ring Style
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

GIA 4.03 Carat Loose Cut-Cornered Rectangular Modified Brilliant Diamond H / SI1
Located in Scottsdale, AZ
This stunning 4.03 carat cut-cornered rectangular modified brilliant diamond, certified by GIA, is
Category

21st Century and Contemporary Unknown Contemporary Loose Gemstones

Materials

Diamond

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

1.07 Carat Loose J / I1 Square Modified Brilliant Diamond GIA Certified
Located in Sherman Oaks, CA
Diamond General Info Diamond Cut: Princess Cut Measurements: 6.29 x 6.16 - 4.16 Diamond
Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

1.05 Ct Loose H/VS2 Rectangular Modified Brilliant Princess Diamond Gia Cert
Located in Sherman Oaks, CA
1.05 Ct Loose H/VS2 Rectangular Modified Brilliant Princess Diamond GIA Cert Diamond General Info
Category

21st Century and Contemporary American Modern Loose Gemstones

Materials

Diamond

Chaavae 18 Karat Gold and Platinum, 3.50 Carat Diamonds Modified Oval Earrings
Located in New York, NY
Beautiful 18 karat yellow gold and platinum, Diamond designed by Tilson Gem Designs for their
Category

1990s American Contemporary Clip-on Earrings

Materials

Diamond, Yellow Gold, Platinum

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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.