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GIA Certified 5.06 Carat Cushion H VS2 Diamond Pave Halo Frame Ring
Located in New York, NY
that the 5.06 carat cushion modified brilliant-cut diamond has H color and VS2 clarity.
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

GIA Certified 2.08 Carat Cushion Diamond Halo Platinum Engagement Ring
Located in Baltimore, MD
number: 6214290429 (see original report pictured for details) Diamond shape: Cushion modified brilliant
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Antique Edwardian 8.16 Carat D SI1 Cushion Cut Diamond Platinum Ring GIA
Located in New York, NY
includes GIA Diamond Grading Report 2185992853, which states that the 8.16 Cushion Modified Brilliant cut
Category

Early 20th Century Edwardian Engagement Rings

Materials

Diamond, White Diamond, Platinum

18 Karat White Gold 2.32 Carat Princess Cut Diamond Engagement Ring
Located in Webster, NY
IGI 31012546 Center Diamond Carat Weight: 1.32CT Center Diamond Cut: Square Modified Brilliant Center
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 18k Gold

GIA 4.10 Carat Radiant Cut Diamond Platinum Ring with Traps by J Birnbach
By J. Birnbach
Located in New York, NY
Modified Brilliant-cut diamond has I color and SI1 clarity.
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, White Diamond, Platinum

Exquisite 1.54 Carat Cushion Diamond Ring in 18K Yellow Gold
Located in רמת גן, IL
modified brilliant diamond, radiating brilliance and fire. The mesmerizing center stone is complemented by
Category

2010s Israeli Cocktail Rings

Materials

Diamond, 18k Gold, Yellow Gold

GIA Certified 0.83CT H VVS1 Cushion Platinum Diamond Halo Engagement Ring
Located in Baltimore, MD
GIA Certified Cushion 0.83CT H VVS1 Platinum Diamond Halo Engagement Ring Size 5.5 GIA Report
Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Diamond, Platinum

Exquisite 1 Carat Cushion Diamond Ring in 18K White Gold
Located in רמת גן, IL
modified brilliant diamond, radiating brilliance and fire. The center stone, meticulously cut for optimal
Category

2010s Israeli Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

Asprey GIA No Heat SriLanka Sapphire 5.44cts Diamond Platinum Ring
By Asprey
Located in Miami, FL
modified triangular brilliant near-colorless diamonds, each weighing 0.57 carats, with a total weight of
Category

Vintage 1980s French Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

Sparking 1 Pc Natural Diamond with 0.84 Ct Cushion E VVS2 GIA Certificate
Located in רמת גן, IL
1 sparkling natural cushion modified brilliant diamond in a 0.84 carat E VVS2 with excellent cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1.01 Carat Cushion Brilliant GIA Certified Fancy Yellow SI2 Clarity Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC56424 Stone Shape: CUSHION MODIFIED BRILLIANT Diamond Weight: 1.01ct
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Exceptional 2 Carat Cushion Diamond Ring in 18K White Gold
Located in רמת גן, IL
carat cushion modified brilliant diamond, boasting exceptional fire and scintillation. This internally
Category

2010s Israeli Engagement Rings

Materials

Diamond, 18k Gold, White Gold

1.85 Carat Blue Sapphire and Trapezoid Diamonds Platinum Statement Sapphire Ring
Located in Brooklyn, NY
Platinum Brilliant Blue sapphire Modified Cushion Shape set with Diamonds all around, on the sides
Category

2010s Thai Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

Timeless 1 Carat Cushion Diamond Ring in 18K Rose Gold
Located in רמת גן, IL
evoke a sense of timeless beauty and refinement. 1 diamond main stone of 1 carat cut: cushion modified
Category

2010s Israeli Solitaire Rings

Materials

Diamond, 18k Gold, Rose Gold

Dazzling 1 Pc Natural Diamond W/ 1.70 Carat Cushion D VVS1 IGI Certificate
Located in רמת גן, IL
One glittering cushion modified brilliant cut natural diamond in a 1.7 carat D VVS1 with very good
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Bold Brilliance: 1.45 Carat Radiant Diamond Ring with Dazzling Accents
Located in רמת גן, IL
-cornered rectangular modified brilliant diamond, also known as a radiant cut diamond, as its radiant
Category

2010s Israeli Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Contemporary 4.23 CTW Fancy Light Yellow Diamond 18 Karat Gold Engagement Ring
Located in Philadelphia, PA
Centering a modified cushion brilliant cut diamond weighing 3.09 carats total - Y to Z color (Light
Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

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

Aletto Brothers, GIA 12.45 Carat Diamond Three Stone Engagement Ring
By Aletto Brothers
Located in Chicago, IL
GIA Report No: 11362033 Diamond cut: Cushion Modified Brilliant Carat: 9.01 carats Measurements
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA 4.11 Carat Yellow Diamond Platinum Gold Three-Stone Engagement Ring
Located in Stamford, CT
rectangular modified very light yellow diamond, VVS2 VS approx. 4.11cts GIA Certificate # 621360413 EGL
Category

21st Century and Contemporary Engagement Rings

Materials

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

Dazzling 1pc Natural Diamond w/ 0.96 ct square cushion D VS1 IGI Certificate
Located in רמת גן, IL
One shiny and sparkling cushion-modified brilliant cut natural diamond with amazing sparkles in a
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1 Pc Natural Diamond w/ 0.81 ct Cushion H IF IGI Certificate
Located in רמת גן, IL
with unlimited light and fire -known as cushion modified brilliant. This diamond has the highest
Category

2010s Israeli Loose Gemstones

Materials

Diamond

GIA Certified 1.19 Carat Princess Cut Diamond Crossover Engagement Ring
Located in Baltimore, MD
GIA Certified Princess Cut Diamond 1.19 Carat I VS1 14K White Gold Crossover Pave Diamond Setting
Category

21st Century and Contemporary Modern Engagement Rings

Materials

Diamond, 14k Gold, White Gold

2 pcs Natural Diamonds - 1.20 ct - Cushion - D colourless - VVS1, GIA Cert
Located in רמת גן, IL
Pair of natural cushion modified brilliant diamond in a 1.20 carat D VVS1 with Beautiful cut and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Stunning GIA Certified 8.38 Carat Natural Fancy Yellow Oval Shaped Diamond Ring
Located in Tustin, CA
Magnificent custom made estate ring features a GIA Certified, 7.08 carat, oval modified brilliant
Category

Early 2000s American Contemporary Engagement Rings

Materials

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

GIA Certified 0.67 Carat Square Brilliant Cut Halo Diamond Platinum Ring 6
By H H Jewels
Located in Miami, FL
&H Jewels, features a 0.67 carat square modified brilliant cut diamond (F/VS1; GIA #2141754964
Category

2010s Engagement Rings

Materials

Diamond, Platinum

John Atencio 18 Karat White Gold GIA Round Diamond Engagement Ring
By John Atencio
Located in Montgomery, AL
Brilliant Cut Diamonds 0.60 Carats Total Weight Clarity: VS2-Si1 Color: G GIA Certified 1 Round Modified
Category

21st Century and Contemporary Unknown Modern Engagement Rings

Materials

Diamond, White Gold

J. Birnbach GIA Certified 2.61 Carat Fancy Vivid Blue VS2 Pear Brilliant Diamond
By J. Birnbach
Located in New York, NY
modified brilliant cut diamond of fancy vivid blue color and VS2 clarity, this diamond possesses a
Category

21st Century and Contemporary Unknown Contemporary Loose Gemstones

Materials

Diamond, Blue Diamond

Black, Starr Frost GIA Certified Natural Fancy Pink Oval Diamond Ring 2.30ctw
By Black, Starr Frost
Located in Tustin, CA
Natural Fancy Pink Oval Modified Brilliant cut center diamond accented by 1.19ctw F-G/VVS Quadrillion cut
Category

1990s American Modern Engagement Rings

Materials

White Diamond, Pink Diamond, Platinum

GIA 1.51 Carat Fancy Light Yellow Princess Cut Diamond Platinum 18k Yellow Gold
Located in Beverly Hills, CA
one GIA square modified brilliant cut diamond of 1.51 carats, accompanied by GIA #5234145099 stating
Category

21st Century and Contemporary Engagement Rings

Materials

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

Unknown Designer 18 Karat .50 Carat Diamonds Star Clip Earrings Heavy
Located in New York, NY
Unique Modified Star diamond earrings 8 bezel set diamonds .50ct. F-color, Vs-1 clarity. 18kt
Category

2010s American Clip-on Earrings

Materials

Diamond, 18k Gold, Yellow Gold

GIA Certified Cushion 1.32 Carat Natural Fancy Yellow Diamond Engagement Ring
Located in Baltimore, MD
GIA Certified Cushion Modified Brilliant 1.32ct Natural Fancy Yellow Diamond Engagement Ring Size
Category

2010s Modern Engagement Rings

Materials

Yellow Diamond, 14k Gold, White Gold

Elegant 1.01 Carat Rectangular Diamond Ring in 18K White Gold
Located in רמת גן, IL
-cornered rectangular modified brilliant diamond, boasting an exceptional E color and VS1 clarity for
Category

2010s Israeli Engagement Rings

Materials

Diamond, 18k Gold, White Gold

2.01 Carat Trillion Cut 14 Karat White Gold Diamond Engagement Ring
Located in Scottsdale, AZ
Designer: custom design Material: 18k white gold with modified Euro shank Center Diamond: 1
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 14k Gold, White Gold

0.89 Carat Pear Brilliant GIA Certified K, Faint Brow VVS2 Clarity Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NY56722 Stone Shape: MODIFIED PEAR NOVELTY CUT Diamond Weight: 0.89ct
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

Tiffany Co. Soleste Double Halo 0.76 Carat Natural Diamond Engagement Ring
By Tiffany Co.
Located in Baltimore, MD
: Platinum Weight: 4.03 grams Diamond: Cushion modified brilliant 0.76 carat I VVS1 natural diamond Accent
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

1860 s Victorian 12.70 Carats Ruby Fancy Green Colored Diamond 18 Karat Brooch
Located in Philadelphia, PA
a modified pear cut fancy colored diamond weighing approximately 0.95 carat Fancy light yellow
Category

Antique 1860s Victorian Brooches

Materials

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

GIA Certified 1.93 Carat Princess Cut Diamond Solitaire Engagement Ring
Located in Baltimore, MD
: 1259248449 (please note original GIA pictured for details) Diamond: Square modified brilliant (princess cut
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, 14k Gold, White Gold

Estate GIA certified Fancy Yellow Diamond Engagement Ring 18K Yellow White Gold
Located in Scottsdale, AZ
September 19, 2014 for reference. Showcasing one (1) Cushion Modified Brilliant cut diamond in the center
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

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

GIA Certified 7.50 Carat Diamond Ring in 18 Karat White Gold
By Kaufmann de Suisse
Located in Dallas, TX
supports a cut-corner, rectangular modified brilliant diamond in the center, surrounded by bead-set, full
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 18k Gold, White Gold

1.23 Carat Cushion Brilliant GIA Certified U-V Color FL Clarity Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC55471 Stone Shape: CUSHION MODIFIED BRILLIANT Diamond Weight: 1.23ct
Category

21st Century and Contemporary Loose Gemstones

Materials

Diamond

J. Birnbach GIA Certified 3.58 Carat Oval H VS1 Diamond Engagement Ring
By J. Birnbach
Located in New York, NY
H color and VS1 clarity. Set in a platinum, handmade mounting with two modified pear shape diamonds
Category

21st Century and Contemporary American Three-Stone Rings

Materials

Diamond, Platinum

Retro 3.89 Carat Pink Sapphire Diamond Engagement Ring GIA Certified
Located in Santa Barbara, CA
Accent Diamonds (2): Modified Shield Step Cut Kite Shape = 1.75 carats total Color: J & K Clarity: VS2
Category

Vintage 1940s Retro Engagement Rings

Materials

Diamond, Pink Sapphire, Platinum

Beautiful 1 pc Cushion Natural Diamond with 0.80 ct D IF - IGI Certificate
Located in רמת גן, IL
amazing and Sparkling natural cut square cushion modified brilliant diamond in a 0.8 carat D IF
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 14K White Gold Natural Diamond Ring w/ 1.12ct - IGI Certified
Located in רמת גן, IL
side stones, totaling 0.45 carats. Each modified brilliant-cut diamond displays a remarkable array of
Category

2010s Israeli Fashion Rings

Materials

Diamond, 14k Gold, White Gold

Dazzling 1 Pc Cushion Natural Diamond with 0.72 Ct D SI2 GIA Certificate
Located in רמת גן, IL
1 pcs Diamond - 0.72 ct - Cushion - D (colourless) - SI2 GIA Natural cushion modified brilliant
Category

2010s Israeli Loose Gemstones

Materials

Diamond

GIA Certified 1.11 Carat Diamond White Gold Three Stone Engagement Ring
Located in Stamford, CT
Three-stone diamond engagement ring. GIA certified square modified center stone in a 14k white gold
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Gold, 14k Gold, White Gold

2 Pcs Natural Diamonds, 1.04 Ct, Radiant, D Colourless , VS2, VS1, GIA Cert
Located in רמת גן, IL
Pair of natural cut-cornered rectangular modified brilliant diamond in a 0.50, 0.54 carat D VS1
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Art Deco 1920 French Cut Diamond Line Tennis Bracelet in Platinum
Located in London, GB
highly reflective square (modified brilliant) Princess Cut. Diamonds all perfectly lined across, each
Category

Vintage 1920s British Art Deco Tennis Bracelets

Materials

Diamond, Platinum

Sophisticated 1.25ct Cushion-Cut Diamond Pave Ring in 18K White Gold
Located in רמת גן, IL
This splendid pave ring features a modified cushion-cut diamond as the centerpiece, weighing 0.81ct
Category

2010s Singaporean Engagement Rings

Materials

Diamond, 18k Gold, White Gold

An Art Deco Diamond Ring
Located in New York, NY
An Art Deco diamond ring of modified square plaque design centering on an old European-cut diamond
Category

Vintage 1930s Fashion Rings

Mughal Magnificenct Traditional Kundan Polki Rose Cut Diamond Red Enamel Suite
Located in New York, NY
real Diamonds polki stones, Beads, Pearls and Red enamel necklace. The modified triangular-shaped
Category

Early 2000s Drop Necklaces

Materials

Diamond, 18k Gold, Enamel

GIA Certified 2.09 Light Yellow Three-Stone Natural Diamond Engagement Ring
Located in Baltimore, MD
rectangular modified brilliant Accent diamonds: 2 radiant natural diamonds approx. .60 CTW G VS Size: 6 (US
Category

21st Century and Contemporary North American Modern Engagement Rings

Materials

Diamond, Yellow Gold, Platinum

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

Dazzling 18k White Gold Stud Earrings w/ 1.45Ct Natural Diamonds IGI Certificate
Located in רמת גן, IL
An elegant pair of stud earrings with a dazzling 1.45-carat square modified brilliant diamonds. The
Category

2010s Israeli Stud Earrings

Materials

Diamond, 18k Gold, White Gold

Charming 18k Yellow Gold Necklace w/ .58 Carat Natural Diamonds IGI Certificate
Located in רמת גן, IL
A sparkling square pendant with a chain with a dazzling 0.5-carat square modified natural diamond
Category

2010s Israeli Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Marvelous 18k Rose Gold Engagement Ring w/ 1.01 Natural Diamonds IGI Certificate
Located in רמת גן, IL
and a nice jewelry box. 1 diamond main stone of 1.01 carat cut: square cushion modified color: I-J
Category

2010s Israeli Solitaire Rings

Materials

Diamond, 18k Gold, Rose Gold

Contemporary 1.71 Carat GIA Cert Brilliant Cushion Cut Diamond Engagement Ring
Located in Narberth, PA
platinum mounting is a stunning Cushion Modified Brilliant diamond, which weighs 1.71ct and has D color and
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, 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.