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Art Déco circa 1930, 2.5 Carat Pink Sapphire Diamond Platinum Cocktail Ring
Located in Berlin, Berlin
ct altogether, Wesselton/H, vsi 18 diamonds, 8/8 cut, approx. 0,36 ct altogether, Wesselton/H, vsi–pi
Category

Vintage 1930s Art Deco Cocktail Rings

Materials

Diamond, Pink Sapphire, Platinum

Art Deco Old Cut Diamond gold Trilogy Ring
Located in Theydon Bois, Essex
than its 0.90 carat, and is flanked by a pair of old European cut diamonds. The knife shoulders hold a
Category

Early 20th Century British Art Deco Three-Stone Rings

Materials

Diamond, 18k Gold, Platinum

Antique Diamond Bow Brooch with a .77 Carat Light Pink, Diamond
Located in San Francisco, CA
-cut diamonds, a rare, natural Fancy Light Pink antique pear-shape diamond weighing .77 carats
Category

Antique Late 19th Century Victorian Brooches

Materials

Diamond, 18k Gold

Vintage 1930s Old Cut Diamond Emerald Target Cluster Platinum Ring
Located in Newcastle Upon Tyne, GB
An exquisitely crafted 'target' ring. A central old cushion-cut diamond of approximately 1 carat
Category

Vintage 1930s British Art Deco Cluster Rings

Materials

Diamond, Emerald, Platinum

Magnificent Rare Victorian 4.0 Carat Diamond Trilogy Ring
Located in Napoli, IT
period, trilogy ring 4.0 Carat of antique Diamond content split into three beautiful, old mine cut
Category

Antique 1890s Victorian Three-Stone Rings

Materials

Diamond, 14k Gold

Art Deco 1.30 Carat Ruby Diamond Platinum Cluster Ring
Located in Theydon Bois, Essex
approximately 1.30 carat, with an estimated 0.46 carat of diamonds. Circa – 1925. Size – J (UK) or 4 5/8 (US
Category

Early 20th Century Art Deco Cluster Rings

Materials

Ruby, Diamond, Platinum

Ceylon No Heat 6.99 Carat GIA Cert Sapphire Diamond Platinum Ring
Located in Atlanta, GA
A platinum, sapphire and diamond ring, set in the center with a mixed cushion-cut sapphire weighing
Category

Late 20th Century Solitaire Rings

Materials

Blue Sapphire, Diamond, Sapphire, White Diamond, Platinum

Antique 7.68 Carat Sapphire and Diamond Ring
Located in San Francisco, CA
A gorgeous, richly saturated, royal-blue cushion-cut sapphire, weighing 7.68 carats, radiates from
Category

Antique Early 1900s Victorian Fashion Rings

Materials

Sapphire, 14k Gold

Antique 7.68 Carat Sapphire and Diamond Ring
Located in San Francisco, CA
A gorgeous, richly saturated, royal-blue cushion-cut sapphire, weighing 7.68 carats, radiates from
Category

Antique Early 1900s Victorian Fashion Rings

Materials

Sapphire, 14k Gold

Midcentury 13.50 Carat Ceylon Yellow Sapphire Cocktail Ring
Located in Essex, GB
1.74 carat of diamonds. Circa – 1960. Size – L 1/2 (UK) or 5 7/8 (US). Complimentary sizing is
Category

Mid-20th Century Cocktail Rings

Materials

Sapphire, Yellow Sapphire, 18k Gold, Yellow Gold, Platinum

Antique Diamond Pendant Brooch with Old Mine Rose Cut, Approx 3.60 Ctw
Located in Danvers, MA
of 132 antique diamonds - both cushiony old mine cut and old rose cut diamonds, for a total estimated
Category

Antique 19th Century British Early Victorian Pendant Necklaces

Materials

Diamond, 15k Gold, Silver

GILIN 18K White Gold Pink Diamond And Diamond Ring
By GILIN
Located in Central, HK
A pretty pink diamond ring in 18k white and rose gold displays a 0.11 carats cushion cut pink
Category

2010s Hong Kong Modern Cocktail Rings

Materials

Pink Diamond, Diamond, White Gold, Rose Gold

Huge Emerald and Diamond 14 Carat White Gold Cluster Cocktail Ring
Located in St Helens, GB
two pear cut diamonds to total 1.60 carats approx. The total head measures 17.5mm x 17mm and
Category

20th Century American Art Deco Cluster Rings

Materials

Diamond, Emerald, 14k Gold, White Gold

No Heat Sapphire with Old Mine Cut Diamond Halo Cluster Ring - AGL Certified
Located in Danvers, MA
cut diamond ring, that comes with its AGL prestige gemstone report. Total estimated gem carat weight
Category

20th Century Edwardian Engagement Rings

Materials

Diamond, Sapphire, 18k Gold, Platinum

GIA Certified Fancy Yellow Diamond Halo Ring 18 Karat White Gold Full Hallmarks
Located in Preston, Lancashire
This gorgeous diamond halo is centered with a VS2 cushion-cut fancy yellow diamond of 0.52 carats. A
Category

2010s British Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold, White Gold

1.76 Carat Art Deco Fancy Yellow Diamond Platinum Ring
Located in San Francisco, CA
Fancy Yellow European-cut diamond, weighing 1.76 carat. We've owned and examined many Fancy Yellow and
Category

Vintage 1920s American Art Deco Engagement Rings

8ct Burmese Ruby Diamond Ring
Located in London, GB
with this breathtaking 8-carat cushion-cut Burmese ruby ring, a true masterpiece of fine jewellery. Set
Category

2010s Modern Cocktail Rings

Materials

Diamond, Ruby, 18k Gold

4.14 Carat Unheated Ceylon Pink Sapphire Ring
Located in Saint Louis, MO
Crafted in platinum; set with a 4.14-carat square cushion-cut Ceylon unheated pink sapphire
Category

Vintage 1950s American Retro Cocktail Rings

Materials

Pink Sapphire, Platinum

Art Deco Natural No Heat Sapphire 1.65 Carat G /VVS Old Diamond Platinum Ring
Located in Napoli, IT
treatment- flanked on sides by two bright white, sparkly, oval cushion old mine cut Diamonds for 1.65 CT
Category

Vintage 1920s Art Deco Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

Andreoli Peridot and Diamond Cocktail Ring
By Andreoli
Located in New York, NY
cushion-cut peridot weighing approximately 11.65 carats; accented by round brilliant-cut diamonds
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Peridot, 18k Gold

Kahn 2.06 Carat Unheat Pink Sapphire 18k White Gold Ring
By KAHN JEWELRY
Located in Tsim Sha Tsui, HK
This ring present a 2.06 carat unheated long cushion cut Pink sapphire set with 8 per shape white
Category

2010s Hong Kong Contemporary Cocktail Rings

Materials

White Diamond, Pink Sapphire, 18k Gold, White Gold

Art Deco Platinum Emerald Diamond Fancy Cluster Ring
Located in Newcastle Upon Tyne, GB
A fabulous Art Deco platinum old-cut diamond ring. The soft, glistening cushion-cut diamond of
Category

Vintage 1920s British Art Deco Cocktail Rings

Materials

Diamond, Emerald, Platinum

Georgian Inspired Diamond Drop Earrings
Located in Los Angeles, CA
Silver and gold, these earrings are made from old cushion cut diamonds with a total weight of 8
Category

21st Century and Contemporary Unknown Georgian Drop Earrings

Materials

Diamond, Sterling Silver, 18k Gold

Antique Diamond Drop Earrings, app. 2.90ctw
Located in New York, NY
Antique diamond drop earrings featuring two Cushion cut diamonds weighing app. 1.12ctw suspended
Category

Antique 19th Century Unknown Dangle Earrings

Materials

Diamond, 9k Gold, Silver

5.88 Ct Indigo Blue Sapphire Diamond 18K Ring
Located in Mill Valley, CA
Prongs Accents: Diamonds Clarity/Color: VVS-VS/F (colorless) Weight: .88 total carat weight Shape/Cut
Category

2010s Sri Lankan Contemporary Engagement Rings

Materials

Diamond, Blue Sapphire, 18k Gold

Art Deco Diamond and Emerald Ring
Located in Atlanta, GA
weighing approximately 3.50 carats, framed by small old European cut diamonds weighing approximately 0.40
Category

Early 20th Century Unknown Art Deco Cocktail Rings

Materials

Diamond, Emerald, Platinum

Very Rare Hot Pink Burmese Spinel Diamond 18K Ring
Located in Mill Valley, CA
: 2.11 total carat weight Center: Size (L x W x D): 7 x 5.6 x 5 mm Cut/Shape: Cushion, brilliant Color
Category

2010s Contemporary Cocktail Rings

Materials

Diamond, Spinel, 18k Gold

David Yurman Diamond Chiclet Bracelet with Blue Topaz Hematite
By David Yurman
Located in Columbia, MO
cushion cut black hematite gemstones 0.8 carat total weight in diamonds 8" in length MSRP $3,600
Category

21st Century and Contemporary Link Bracelets

Materials

Diamond, White Diamond, Hematite, Topaz, Sterling Silver

Spectacular Edwardian Emerald Diamond Platinum Ring
Located in Calabasas, CA
single-cut, old European-cut and old mine-cut diamonds, approximately 1.45 carats, color: H-I, clarity
Category

20th Century Colombian Edwardian Dome Rings

Materials

Diamond, Emerald, Platinum

sapphire and diamond ring
Located in Paris, IDF
White-gold 18K (750 millièmes). Ornated with one cushion-cut sapphire of 4,99 carats. Sapphire is
Category

20th Century French Cluster Rings

Materials

Diamond, Sapphire, 18k Gold

Victorian Sapphire and Diamond Ring
Located in San Francisco, CA
blue color. The sapphire is surrounded by twelve sparkling old mine cushion-cut diamonds, totaling five
Materials

Diamond, Sapphire, 18k Gold

Georgian Inspired Diamond Necklace
Located in Los Angeles, CA
old cushion cuts, 18.6 carats of them! They are set in 8 prong blackened silver with a gold back, and
Category

Antique Early 19th Century American Georgian More Necklaces

Materials

Diamond, 18k Gold, Sterling Silver

Antique Onyx Diamond Chrysanthemum Brooch
Located in Wimberley, TX
floral form of eleven (11) old mine and cushion cut diamonds placed within a silver-topped 14k gold
Category

American Brooches

Materials

Onyx, Diamond

American Art Deco Diamond Sapphire Ring
Located in Wimberley, TX
the Art Deco category. The prominent 1.47 carat old mine cut diamond (I color; SI1 clarity) with an
Category

American More Rings

Materials

Diamond

Bez Ambar Fancy Intense Pink Diamond Platinum Ring
By Bez Ambar
Located in Grosse Pointe Woods, MI
rare GIA certified 1.04 carat cushion cut intense fancy purplish-pink diamond set in a phenomenal one
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Pink Diamond, Platinum

Fabulous Chrome Green Tourmaline Diamond Ring
Located in Wynnewood, PA
for an approximate weight of 8 ½ carats. The tourmaline is surrounded by 20 diamonds that are .04
Category

American Cocktail Rings

Materials

Tourmaline, Diamond, 18k Gold, Platinum

Art Deco Emerald Diamond Platinum Ring
Located in San Francisco, CA
-caliber old mine-cut diamonds totaling 2.00 carats. The rich, electric green gemstone is framed with the
Category

Early 20th Century Art Deco Cocktail Rings

Materials

Diamond, Emerald, Platinum

14ct Yellow Gold Blue Chalcedony And Diamond Studs
Located in Cape Town, ZA
cabochon cut Number of Stones: 8 x Diamond Carat: 8 x 0.0075p Cut
Category

21st Century and Contemporary Lever-Back Earrings

Materials

Chalcedony, Diamond, Yellow Gold

Tacori GIA Certified Diamond Dantela Halo Engagement Ring
By Tacori
Located in Columbia, MO
diamond in this spectacular ring is an ideal cut, .71 carat, round brilliant diamond that is GIA certified
Category

21st Century and Contemporary American Engagement Rings

Materials

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

Shreve, Crump Low GIA Certified Colombian Emerald and Diamond Suite
By Shreve, Crump Low
Located in Chestnut Hill, MA
. Consisting of 8 cushion cut brilliant Colombian emeralds in the necklace having a total weight of 32.38
Category

21st Century and Contemporary Choker Necklaces

Materials

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

Early Victorian Diamond Brooch/Pendant with Natural Pearl Drop
Located in San Francisco, CA
Cushion Cut Diamonds Diamond Total Carat Weight: 1.00 carats Diamond Clarity: SI1-SI2
Category

Antique Late 19th Century Unknown Victorian Brooches

Materials

Diamond, Natural Pearl, 14k Gold

Alexandra Mor Sautoir Necklace with Color Gemstone, Diamond and White Briolette
By Alexandra Mor
Located in New York, NY
weighing 3.87 carats, 8 Cushion-Cut Citrines weighing 4.32 carats, 8 Marquise-Shape Aquamarines weighing
Category

21st Century and Contemporary American Contemporary Chain Necklaces

Materials

Aquamarine, Citrine, Diamond, Topaz, Tourmaline, Platinum

Art Deco 1.54 Ctw. Old Mine Diamond Cocktail Ring H I VS2 in Platinum
Located in New York, NY
A wave of super chunky antique cushion shape diamonds cover the face of this striking cocktail ring
Category

Mid-20th Century Unknown Cocktail Rings

Materials

Diamond, Platinum

Superlative Edwardian Aquamarine Pendant Necklace
Located in San Francisco, CA
diamonds are very fine quality old -mine and antique cushion cuts. The matching diamond chain is newly made
Category

20th Century Edwardian Drop Necklaces

Materials

Aquamarine, Diamond, Platinum

8 carats Cushion Cut Yellow Sapphire Dangle Earrings
Located in Lakewood, NJ
A pair of cushion cut non-treated yellow sapphires in platinum and pavé diamond goose-neck lever
Category

21st Century and Contemporary American Lever-Back Earrings

Materials

Diamond, Yellow Sapphire, Platinum

Handcrafted Tiffany Cushion Cut Diamond Ring in Platinum by Single Stone
By Single Stone
Located in Los Angeles, CA
1.20ct I/VS2 EGL certified vintage Cushion cut diamond set in a handcrafted platinum mounting with
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

White Gold 0.70 Carat Cushion Diamond Halo Ladies Fashion Ring
Located in Columbia, MO
Main Stone Diamond Estimated Retail $5,000.00 Metal White Gold Total Carat Weight (TCW) 0.7 ctw
Category

21st Century and Contemporary Fashion Rings

Materials

Diamond, Pink Diamond, 18k Gold, White Gold

Antique Victorian Cushion Cut Diamond Solitaire White Gold Engagement Ring
Located in Rottedam, NL
A very rare antique French engagement ring featuring a circa 0.5 carat old cushion cut diamond. The
Category

Antique Late 19th Century French Late Victorian Engagement Rings

Materials

Diamond, White Gold, 18k Gold

Ladies Estate Fine Cushion Aquamarine and Diamond Ring 18 Karat Gold 18.62 Carat
Located in Carmel-by-the-Sea, CA
Eye Clean - Minor Blemishes Side Stones: Diamonds Shape: Round Brilliant Cut Measurements: 2.30mm (8
Category

Vintage 1930s Unknown Art Deco Cocktail Rings

Materials

Diamond, Aquamarine, 18k Gold, White Gold

Victorian 1.00 Carat Old Cut Diamond Gold Target Cluster Ring
Located in Theydon Bois, Essex
carat and displays a very high white colour. Eight surrounding stones – cushion shaped old mine cuts
Category

Early 20th Century Victorian Cluster Rings

Materials

Diamond, 18k Gold

Antique 2.53 Carat Old Cut Diamond Ring, Victorian circa 1880s
Located in Yorkshire, West Yorkshire
A Victorian diamond boat shape ring set with 13 old cut diamonds, comprising nine cushion shaped
Category

Antique 1880s Unknown Victorian Cluster Rings

Materials

Diamond, 18k Gold

3.26 Carats Cushion London Blue Topaz Sapphire 14K White Gold Cocktail Ring
By Affinity Designs LLC
Located in New York, NY
This cushion cut London Blue Topaz, Sapphire and Diamond ring is set in 14K White gold. This ring
Category

2010s Thai Contemporary Cocktail Rings

Materials

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

3.23 Carat Black Diamond White Diamond White Gold Engagement Ring
By DGI
Located in Los Angeles, CA
Oval Cut Black Diamond that weighs 2.28 Carats and is surrounded by 46 Round Cut Diamonds that
Category

2010s American Contemporary Engagement Rings

Materials

White Diamond, Black Diamond, 14k Gold, White Gold

8.31 Carat Peridot Diamond 14 Karat White Gold Earrings
By DGI
Located in Los Angeles, CA
There are 2 Square Cushion Cut Peridots that weigh 7.70 carats and measure at 8 x 9 mm each
Category

2010s American Contemporary Lever-Back Earrings

Materials

Diamond, Peridot, 14k Gold, White Gold

3.75 Carat Apatite Diamond 14 Karat White Gold Ring
By DGI
Located in Los Angeles, CA
This ring has a 2.85 carat Natural Cushion Cut Apatite in the center of the ring and is surrounded
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Apatite, 14k Gold, White Gold

5.73 Carat Turquoise Sapphire Diamond 14 Karat White Gold Cocktail Ring
By DGI
Located in Los Angeles, CA
This is a unique beauty! The Square/Cushion Cut Turquoise is 5.00 Carats and is surrounded by a
Category

2010s American Modern Cocktail Rings

Materials

Diamond, Turquoise, 14k Gold, White Gold

10.79 Carat Morganite Diamond 14 Karat Rose Gold Cocktail Ring
By DGI
Located in Los Angeles, CA
is surrounded by 8 Round Cut Diamonds that weigh 0.37 Carats. The total carat weight of the ring is
Category

2010s American Modern Cocktail Rings

Materials

Morganite, 14k Gold, Rose 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.