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Retro 25.90 Carat Sapphire Diamond 14 Karat White Gold Bouquet Brooch
Located in Philadelphia, PA
cabochon, cushion, round, and hexagonal cuts that weigh in total approximately 25.00 carats Pavè set and
Category

Vintage 1940s Retro Brooches

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Pink Sapphire, Yellow S...

Natural Sri Lankan Cornflower Blue Sapphire Diamond Ring 9.08 Carat
Located in Mayfair, London, London
indications of heat treatment. The sapphire is complemented by a halo consisting of 4 oval cut diamonds and 8
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

25.00 Carat Amethyst and Diamond Cocktail Ring 14 Karat Yellow Gold
Located in Scottsdale, AZ
Designer: custom design Material: 14k yellow gold Amethyst: cushion cut 25.00 carat amethyst
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Amethyst, Diamond, 14k Gold, Yellow Gold

Art Deco 0.91 Carat Old European Diamond Platinum Square Form Engagement Ring
Located in Philadelphia, PA
Centering an old European cut diamond weighing approximately 0.71 carat total - J color with SI2
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

Victorian 0.80 Carat Ruby Sapphire Diamond 18 Karat Gold Triple Loop Charm
Located in Philadelphia, PA
0.30 carat. Cushion cut rubies weigh in total approximately 0.30 carat - red to purplish red in color
Category

Antique 1890s Victorian Charm Bracelets

Materials

Diamond, White Diamond, Ruby, Sapphire, Gold, 18k Gold, Yellow Gold

Art Deco Diamond Platinum Necklace Earrings Bracelets Choker Interchangeable
Located in Beverly Hills, CA
everyday casual version - without them. The diamonds are Old European and old cushion cuts, total weight
Category

Early 20th Century French Art Deco Chandelier Earrings

Materials

Diamond, Platinum

Antique 34.25 Carat Aquamarine Diamond Pearl Brooch Pendant
Located in Chicago, IL
Circa 1905 This exquisite antique pendant from the Edwardian era features a huge cushion cut 34.25
Category

Early 20th Century Edwardian Brooches

Materials

Aquamarine

French Diamond Gold Bow Tank Ring
Located in Poitiers, FR
with 8 diamonds. Total diamond weight : about 0.40 carat. Total weight of the ring: about 17.2 g. US
Category

Vintage 1950s French Retro Signet Rings

Materials

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

Antique Georgian Ruby and Diamond Pendant, 19th Century, England
Located in Austin, TX
hue eye visible natural inclusions. Total diamond weight is 5.5 carats. 84 antique cut diamonds
Category

Antique Early 1800s English Georgian Pendant Necklaces

Materials

Diamond, Ruby, 9k Gold

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...

Antique Pearl Diamond Cluster Ring
Located in Chicago, IL
ring is centered with an 8 mm pearl surrounded by 30 old mine / old cushion cut diamonds. Estimated
Category

Antique Late 19th Century Victorian Cluster Rings

Materials

Diamond, Natural Pearl

Victorian 4.12 Carats Ruby Diamond 18 Karat Yellow Gold Bow Fringe Drop Earrings
Located in Philadelphia, PA
kite drop - semi-transparent purplish pink in color. With additional cushion cut and oval cabochon
Category

Antique 1860s Victorian Drop Earrings

Materials

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

GIA 2.85ct Natural Burma No-Heat Red Spinel and Diamond Platinum 3-Stone Ring
Located in New York, NY
features a Gorgeous gem : 2.25 carat Natural Unheated " NO HEAT " BURMA Cushion Cut Deep RED Spinel
Category

Vintage 1950s Engagement Rings

Materials

Diamond, Spinel, Platinum

Boucheron Vintage 0.51 Carat Diamond Lapis 18 Karat Gold Ear-Clip Earrings
By Boucheron
Located in Philadelphia, PA
Each centering four bead set, round brilliant cut diamonds weighing approximately 0.51 carat total
Category

Vintage 1950s French Retro Clip-on Earrings

Materials

Diamond, Lapis Lazuli, 18k Gold

Glamourous Ruby and 0.40ct Diamonds in 18K White Gold Ring
Located in רמת גן, IL
stones Side stone carat weight: 0.40ct Shape: Round brilliant natural diamond Color grade: H Clarity
Category

2010s Singaporean Solitaire Rings

Materials

Diamond, Ruby, White Gold

2.13ct Sapphire Platinum Ring with Diamonds
Located in Big Bend, WI
Platinum blue sapphire and diamond ring featuring a rectangular cushion cut sapphire weighing 2.13
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Victorian 18k Ruby and Diamond Star Pendant/Charm
Located in Narberth, PA
. The remainder of the pendant/charm's surface is encrusted with small rose cut diamonds, which are also
Category

Antique 1880s Victorian Pendant Necklaces

Materials

Diamond, Ruby, Gold, 18k Gold, Yellow Gold

Blue and Pink Sapphire Ring with Diamonds in 18 Karat Yellow Gold
Located in Palm Desert, CA
Multi-colored Sapphire Ring with diamonds. Set in 18 karat yellow gold. Center Cushion Cut Blue
Category

2010s Cocktail Rings

Materials

Diamond, Blue Sapphire, Pink Sapphire, 18k Gold

Burle Marx Citrine and Diamond Ring
By Haroldo Burle-Marx
Located in Bethesda, MD
ring features a bezel 12*10mm cushion cut citrine and 8 diamonds weighing approximately .26 carats set
Category

21st Century and Contemporary Brazilian Fashion Rings

Materials

Citrine, Diamond, 18k Gold

Antique Sapphire and Old Cut Diamond 3-Stone 18ct Gold and Platinum Ring, c.1920
Located in London, GB
approximately 0.30ct in an 8 claw open back setting. The diamond is accompanied by a cushion cut sapphire on
Category

Vintage 1920s Three-Stone Rings

Materials

Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, Yellow Gold, Platinum

Art Deco Russian 13 Carat Peridot Diamond Platinum Pendant
Located in Chicago, IL
platinum and 14K gold, centered with a large cushion cut sparkling lime green peridot, called chrysolite
Category

Vintage 1930s Russian Art Deco Drop Necklaces

Materials

Peridot

Victorian 1.10 Carat No Heat Kashmir Sapphire Diamond 18 Karat Gold Snake Brooch
Located in Philadelphia, PA
Brooch designed as matte gold snake intertwined upon itself With a bezel set cushion brilliant cut
Category

Antique 1870s Unknown Victorian Brooches

Materials

Diamond, Blue Sapphire, 18k Gold

Victorian 18 Karat Gold 2.40 Carat Old Mine Diamond Flower Dangle Bar Pin Brooch
Located in Montclair, NJ
! -- Stone(s) -- (1) Natural Genuine Diamond - Cushion Old Mine Cut - Eight-Prong Set - J Color - SI1 Clarity
Category

Antique 1890s Victorian Brooches

Materials

Diamond, 18k Gold

Retro 1.80 Carat No Heat Sapphire Diamond 14 Karat White Gold Drop Earrings GIA
Located in Philadelphia, PA
Accented by single cut diamonds weighing in total 0.05 carat; eye-clean and white Terminating as cushion
Category

Mid-20th Century Retro Dangle Earrings

Materials

Diamond, Blue Sapphire, 14k Gold

Antique Emerald Diamond Platinum Gold Earrings
Located in Chicago, IL
total diamond weight is 5.10 carats. Length – 22 mm (7/8 in.) Width – 15 mm (9/16 in.) Weight 3.31
Category

Early 20th Century Edwardian Dangle Earrings

Materials

Diamond, Emerald, Gold, Platinum

Tiffany Co. Legacy 4.88 CTW Spinel Diamond Platinum Drop Earrings
By Tiffany Co.
Located in Philadelphia, PA
Designed as drop earrings featuring legacy cushion cut spinels - transparent dark pinkish-purple
Category

21st Century and Contemporary Drop Earrings

Materials

Diamond, Spinel, Platinum

Art Deco Sapphire Diamond 14k Gold Platinum Ring
Located in Beverly Hills, CA
One Art Deco Sapphire Diamond 14k Gold Platinum Ring. Featuring one cushion mixed cut sapphire
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Gold, 14k Gold, Rose Go...

18K White Gold Blue Sapphire Diamond Scattered Halo Drop and Dangle Earrings
Located in New York, NY
80 round diamonds totaling 3/8 cttw, these earrings are a stunning display of luxury and
Category

21st Century and Contemporary Indian Modern Drop Earrings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Victorian 4.00 Total Carat Diamond Tremblé Wings Tiara and Pin in Original Box
Located in Narberth, PA
Cut, and Cushion Cut diamonds line the surface of each wing, decorating the elongated rows of curvy
Category

Antique 1880s Unknown Victorian Brooches

Materials

Diamond, Sterling Silver, 14k Gold

David Yurman Chatelaine 18K Rose Gold Morganite and Pave Diamond Ring 7mm
By David Yurman
Located in New York, NY
Gemstone Shape: Cushion Gemstone Carat Weight: 1.50 carats (7mm) Number of Diamonds: 8 Diamond Shape
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

White Diamond, Morganite, Diamond, Gold, 18k Gold, Rose Gold

French New Tanzanite Diamonds Platinum Band Ring
Located in Poitiers, FR
front with small beaded leaf motifs set with modern brilliant-cut diamonds. A cushion-cut tanzanite is
Category

21st Century and Contemporary French Modern Band Rings

Materials

Diamond, White Diamond, Tanzanite, Platinum

Glamorous 2.25ct Diamond Ring in 18K White Gold
Located in רמת גן, IL
beauty. As the centerpiece, seven mesmerizing cushion-cut diamonds, totaling 1.3 carats, captivate your
Category

2010s Israeli Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

Victorian 6.52 CTW Aquamarine Diamond 14 Karat Gold Silver Floral Antique Ring
Located in Philadelphia, PA
Centering a mixed cushion cut aquamarine weighing approximately 6.40 carats Transparent light blue
Category

Antique 1870s Victorian Engagement Rings

Materials

Aquamarine, Diamond, Gold, 14k Gold, Yellow Gold, Silver

1950 s Mid-Century Amethyst Diamond Platinum Enhancer Pendant Brooch Necklace
Located in Philadelphia, PA
cut diamonds. Weighing in total approximately 0.07 carat - eye clean and bright. Completed by a
Category

Vintage 1950s Pendant Necklaces

Materials

Amethyst, Diamond, White Diamond, Platinum

Smooth Sailing Art Deco Diamond Ruby Platinum Sailboat Charm
Located in Philadelphia, PA
in total approximately 0.35 carat; eye-clean and white Hull is channel set by calibré cut cushion
Category

Vintage 1930s Art Deco Charm Bracelets

Materials

Diamond, White Diamond, Ruby, Platinum

Spinel and Diamond 18 Karat White Gold Ring
Located in Banbury, GB
spinels are 16 bright and lively old European cut diamonds which are K in colour and VS1-VS2 in clarity
Category

2010s Contemporary Cluster Rings

Materials

Diamond, Spinel, 18k Gold

Spinel and Diamond 18 Karat White Gold Ring
Located in Banbury, GB
spinels are 16 bright and lively old European cut diamonds which are K in colour and VS1-VS2 in clarity
Category

2010s Contemporary Cluster Rings

Materials

Spinel, Diamond, 18k Gold

Modern Pink Sapphire Diamonds Platinum Ring
Located in Poitiers, FR
pink sapphire. On either side, 2 x 8 modern brilliant-cut diamonds set in millegrain form a geometric
Category

21st Century and Contemporary French Modern Engagement Rings

Materials

Diamond, White Diamond, Sapphire, Pink Sapphire, Platinum

Platinum and Diamond Stylized Ballerina Ring, circa 1940s
Located in Wailea, HI
Platinum and Diamond Stylized Ballerina Ring Circa 1940's One Cushion Cut Sapphire Weighing 2.62
Category

Early 20th Century Unknown Retro Cluster Rings

Materials

Diamond, Blue Sapphire, Platinum

14 Karat White Gold Blue Topaz and Diamond Ring
Located in McLeansville, NC
stone - 8 mm - diamonds - single cut, 24 stones - approximately .10 total carat - H-I color, SI clarity
Category

Early 2000s Cocktail Rings

Materials

Diamond, Topaz, 14k Gold, White Gold

David Yurman Prasiolite Diamond Sterling Silver Albion Ring
By David Yurman
Located in Philadelphia, PA
Centering a checkerboard cushion cut prasiolite measuring approximately 11.0 mm, transparent and a
Category

Late 20th Century Contemporary Fashion Rings

Materials

White Diamond, Sterling Silver

French 19th Century Diamonds 18 Karat Yellow Gold Platinum Daisy Ring
Located in Poitiers, FR
, its setting forms a daisy flower entirely set with antique cushion-cut diamonds for the petals and
Category

Antique Late 19th Century French Napoleon III Engagement Rings

Materials

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

LeVian 14 Karat Yellow Gold Heliodor Diamond Ring
By Suzy Levian
Located in McLeansville, NC
, cushion cut heliodor beryl weighing approximately 1.50 carats surrounded by a halo of full cut round
Category

Early 2000s Fashion Rings

Materials

Beryl, Diamond, Gold, 14k Gold, Yellow Gold

LeVian 14 Karat Yellow Gold Heliodor Diamond Ring
By Suzy Levian
Located in McLeansville, NC
, cushion cut heliodor beryl weighing approximately 1.50 carats surrounded by a halo of full cut round
Category

Early 2000s Fashion Rings

Materials

Beryl, Diamond, Gold, 14k Gold, Yellow Gold

LeVian 14 Karat Yellow Gold Heliodor Diamond Ring
By Suzy Levian
Located in McLeansville, NC
, cushion cut heliodor beryl weighing approximately 1.50 carats surrounded by a halo of full cut round
Category

Early 2000s Fashion Rings

Materials

Diamond, Beryl, Gold, 14k Gold, Yellow Gold

19th Century Natural Pearl Diamonds 18 Karat Rose Gold Daisy Ring
Located in Poitiers, FR
pearl, in an entourage of antique cushion- cut diamonds. On either side of the head two gold palmettes
Category

Antique Late 19th Century French Napoleon III Engagement Rings

Materials

Diamond, White Diamond, Pearl, Natural Pearl, Gold, 18k Gold, Rose Gold

C1910 Diamond Eternity Band stamped 18CT size 8.25
Located in Baltimore, MD
cushion cut diamonds with a total weight of approximately 1 carat .
Category

Vintage 1910s British Art Deco Band Rings

Materials

Diamond, 18k Gold

Vintage Platinum 3.80ctw GIA Ruby Diamond Long Ballerina Like Cocktail Ring
Located in Montclair, NJ
Info ** (24) Natural Genuine Diamonds - 16 Tapered Baguette & Round Brilliant Cut & 8 Small Accents
Category

20th Century Cocktail Rings

Materials

Diamond, Ruby, Platinum

14KT White Gold Blue Topaz Diamond Ring
Located in McLeansville, NC
stone - 8 mm - diamonds - single cut, 24 stones - approximately .10 total carat - H-I color, SI clarity
Category

Late 20th Century Cocktail Rings

Materials

Diamond, Topaz, Blue Topaz, 14k Gold, White Gold

ELIZABETH GAGE Yellow Gold, Peridot and Diamond Earrings
By Elizabet Gage
Located in New York, NY
brilliant cut diamonds, the crescent enclosing a bezel set cushion cut peridot measuring approximately 10.80
Category

Vintage 1980s American Clip-on Earrings

Materials

Diamond, Peridot, 18k Gold, Yellow Gold

French 1930s Art Deco Diamonds Paving 18 Karat White Gold Ring
Located in Poitiers, FR
center of which are antique cushion-cut diamonds in setting illusion. Total weight of the diamonds : 0,50
Category

Vintage 1930s French Art Deco Cocktail Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, White Gold

Antique Sapphire Diamond Rose Gold Ring
Located in Beverly Hills, CA
0.25 carat. Accented four rose cut diamonds with a total weight of approximately 0.12 carat, graded L
Category

Antique 1880s Unknown Victorian Cluster Rings

Materials

Diamond, Sapphire, Gold, 14k Gold, Rose Gold

Victorian 14k Diamond Engagement Ring .72ct
Located in Narberth, PA
in 14k rosy gold, and features a central .72ct old cushion cut diamond. The diamond is held within an
Category

Antique 1880s Victorian Solitaire Rings

Materials

Diamond, Gold, 14k Gold

Pink Imperial Topaz Ring w Earth Mined Diamonds in Solid 14K Yellow Gold CU 8x4
Located in Columbus, OH
: 0.80ct Head size: 7.8x4mm Shape: Cushion cut Hardness: 8 Metal: 14k/2.10g Diamond Clarity/Color: SI / G
Category

2010s American Modern Fashion Rings

Materials

Diamond, White Diamond, Topaz, Imperial Topaz, Gold, 14k Gold, Yellow Gold

Tanzanite Diamond Pendant Necklace, 14KT 10KT White Gold
Located in McLeansville, NC
necklace features a milgrain bar set, cushion cut tanzanite weighing approximately 1.25 carats suspended
Category

1990s Pendant Necklaces

Materials

Diamond, Tanzanite, 10k Gold, 14k Gold, White Gold

Antique Diamond Cluster Ring
Located in Firenze, IT
Central cushion cut diamond surrounded by 8 smaller diamonds approximately 2,60ct,gold and silver
Category

Antique 1870s French Napoleon III Cluster Rings

Materials

Diamond, 18k Gold

Magnificent 0.48ct Sapphires Cluster Ring with Side Diamonds in 20K Yellow Gold
Located in רמת גן, IL
stone carat weight: 0.48ct Shape: Cushion Modified Color: Blue Clarity: N/A Side stone: 8 pcs Diamonds
Category

2010s Singaporean Cluster Rings

Materials

Diamond, Sapphire, Yellow Gold

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Cushion Cut Diamond 8 Carat For Sale on 1stDibs

Find the exact cushion cut diamond 8 carat you’re shopping for in the variety available on 1stDibs. Each design created in this style — which was crafted with great care and often made from Gold, 18k Gold and Platinum — can elevate any look. In our selection of items, you can find a vintage example as well as a contemporary version. You’re likely to find the perfect cushion cut diamond 8 carat among the distinctive items we have available, which includes versions made as long ago as the 18th Century as well as those produced as recently as the 21st Century. For this particular accessory, there are many different carat weights to choose from, but .5 Carat and 1 Carat versions are of considerable interest. Creating a cushion cut diamond 8 carat has been a part of the legacy of many jewelers, but those produced by Single Stone, Roman Malakov and Mark Broumand are consistently popular. See these pages for a cushion cut iteration of this accessory, while there are also antique cushion cut cut and round cut cut versions available here, too. Most of our cushion cut diamond 8 carat for sale are for women, but there are 469 pieces available to browse for men.

How Much is a Cushion Cut Diamond 8 Carat?

The price for a cushion cut diamond 8 carat starts at $350 and tops out at $2,895,000 with these rings, on average, selling for $15,106.

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.