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AJD Rare Glittering Green 8 Carat RARE REAL Madagascar Apatite Diamond Ring
By Aria Jewelry Design
Located in Raleigh, NC
This 8 Carat cushion cut glittering brilliant natural green Madagascar Apatite (12.5mm x 11.9 mm
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Apatite, 14k Gold, White Gold

New 4.08 Carat Blue Topaz Diamond Cut Sapphire Dangle Sterling Earrings
Located in Eagan, MN
These earrings are just beautiful! The stones are Cushion cut Blue Topaz Stones and each one is
Category

2010s Unknown Art Deco Stud Earrings

Materials

Sapphire, Topaz, Blue Topaz, Black Spinel, Silver, Sterling Silver

Antique 7.80 Carat Peridot Diamond Gold Cluster Ring
Located in Jesmond, Newcastle Upon Tyne
. Peridot Quality Cut Cushion Content 7.80 carats Dimensions 12.11mm x 11.28mm x 6.65mm Diamond Quality
Category

Vintage 1930s Unknown Cluster Rings

Materials

Diamond, Peridot, Gold, 18k Gold

New 2.04 Carat Blue Topaz Diamond Cut Sapphire Spinel Sterling Ring
Located in Eagan, MN
carats. It measures 8 x 8 mm. It is partly surrounded by diamond cut black spinels and they run down
Category

2010s Unknown Art Deco Cocktail Rings

Materials

Spinel, Black Spinel, Blue Topaz, Topaz, Sapphire, Sterling Silver, Silver

New 2.04 Carat Blue Topaz Diamond Cut Sapphire Spinel Sterling Ring
Located in Eagan, MN
carats. It measures 8 x 8 mm. It is partly surrounded by diamond cut black spinels and they run down
Category

2010s Unknown Art Deco Cocktail Rings

Materials

Black Spinel, Blue Topaz, Topaz, Spinel, Sapphire, Sterling Silver, Silver

New 4.08 Carat Blue Topaz Diamond Cut Sapphire Dangle English Lock Earrings
Located in Eagan, MN
These earrings are just beautiful! The stones are Cushion cut Blue Topaz Stones and each one is
Category

2010s Unknown Art Deco Stud Earrings

Materials

Sapphire, Topaz, Blue Topaz, Black Spinel, Sterling Silver, Silver

2.87 Carat Emerald Diamond White Gold Earrings
Located in Chicago, IL
These 14K white gold contemporary earrings feature two cushion cut emeralds of vivid bluish green
Category

21st Century and Contemporary Drop Earrings

Materials

Diamond, White Diamond, Emerald, Gold, 14k Gold, White Gold

LeVian 14k Honey Gold 5/8 Chocolate and Vanilla Diamond Cluster Dome Earrings
Located in Addison, TX
Post) Diamond Specifics: 46) Natural Diamonds Shape: Round Brilliant Cut Clarity: SI2-I1 Color: H-I
Category

2010s Contemporary Stud Earrings

Materials

Diamond, Gold, 14k Gold, White Gold

Edwardian Diamond and 18 Carat Gold Bracelet
Located in Chipping Campden, GB
This stunning bracelet holds five wonderful panels of diamonds. The centre panels hold a total of
Category

Antique Early 1900s British Edwardian Link Bracelets

Materials

Diamond, 18k Gold

Tiffany Co. GIA Tanzanite Diamond 18k Gold Vintage Cushion Engagement Cocktail
By Tiffany Co.
Located in Miami, FL
Tanzanite of approximately 4.41 carats.  The double halo design has 120 round-cut, pave set, genuine
Category

Vintage 1980s Modern Cocktail Rings

Materials

Diamond, Tanzanite, 18k Gold

Tiffany Co. GIA Certified 1.52 Carat Ruby Diamond Platinum Engagement Ring
By Tiffany Co.
Located in Stamford, CT
European diamond side stones. Original natural no heat certified no enhancements pure red Ruby cushion cut
Category

Vintage 1910s Engagement Rings

Materials

Diamond, Ruby, Platinum

8.92 Carat Kunzite Diamond White Gold Engagement Ring
By Roshe Jewels
Located in Los Angeles, CA
Cut Diamonds that weigh 0.80 carats (CLarity: SI2, Color: F). The total carat weight of the ring is
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Kunzite, 14k Gold, White Gold

Antique 1.55 Carat Sapphire and Diamond White Gold Cluster Ring
Located in Jesmond, Newcastle Upon Tyne
shank. This cushion cut blue sapphire and diamond ring has been independently tested using state of the
Category

Vintage 1930s Unknown Cluster Rings

Materials

Diamond, Sapphire, White Gold

17.89 Carat Amethyst Diamond Gold Ring
Located in New York, NY
This perfectly Cushion Cut Amethyst Cocktail Ring set high with Diamonds on the shank is made in
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

Amethyst, Diamond, 14k Gold, White Gold

Natural 4 Carat Sapphire Diamond Platinum Engagement Ring
Located in New York, NY
This elegant platinum ring is centered with a lovely cushion cut Ceylon sapphire that weighs 4.00ct
Category

20th Century Engagement Rings

Materials

Diamond, Sapphire, Platinum

14k Solid Yellow Gold Diamond Earring Cushion Shape
Located in Chicago, IL
Cross Over 14k Solid Gold Diamond Earring Cushion Shape Designer Diamond Gift Light weight can be
Category

2010s Indian Stud Earrings

Materials

Diamond, Yellow Gold, 14k Gold

2.33 Carat Tsavorite and Diamond 18 Karat White Gold Engagement Ring
By Roshe Jewels
Located in Los Angeles, CA
surrounded by 27 Round Cut Diamonds weighing 0.70 carats and 8 Tsavorites that weigh 0.27 carats. The total
Category

2010s American Modern Cocktail Rings

Materials

Diamond, Tsavorite, 18k Gold, White Gold

GIA Certified .25 Carat Emerald Diamond Rose Gold Victorian Engagement Ring
Located in Stamford, CT
emerald with a halo of old European cut diamonds in a handmade 14k rose gold setting. 1 cushion cut
Category

Antique Late 19th Century Engagement Rings

Materials

Diamond, Emerald, Gold, 14k Gold, Rose Gold

6.00 Carat Garnet Diamond Yellow Gold Lever Back Earrings
Located in Stamford, CT
square faceted brownish red garnets, approx. 6.00cts 18 round brilliant cut diamonds, I SI approx. .20cts
Category

21st Century and Contemporary Lever-Back Earrings

Materials

Diamond, Garnet, Gold, 18k Gold, Yellow Gold

Peter Suchy 6.18 Carat Blue Tanzanite Diamond Halo White Gold Pendant Necklace
By Peter Suchy
Located in Stamford, CT
Tanzanite and diamond pendant necklace. 6.18ct cushion cut center tanzanite set in 18k white gold
Category

21st Century and Contemporary Pendant Necklaces

Materials

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

4.51 Carat Diamond Sapphire Blue Topaz Rose Gold Cocktail Ring
By Roshe Jewels
Located in Los Angeles, CA
weighs 3.97 carats and is surrounded by 18 Round Cut Pink Sapphires that weigh 0.39 carats and 8 Round
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Pink Sapphire, Topaz, 14k Gold, Rose Gold

4.0 Ct Ruby Vintage Ring 18k Yellow Gold Oval Ruby Old Cut Diamonds Ring
Located in Brooklyn, NY
Diamonds on the sides 1.00 carat Finger size 8 All stones are natural - Imperfections do exist due to
Category

1990s Italian Cocktail Rings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

17.32 Carat Diamond Natural Ceylon Sapphire Gold Drop Earrings
By Dover Jewelry
Located in Miami, FL
sapphires. They are transparent, cushion brilliant cut, and prong set. The two GRS certified sapphires
Category

21st Century and Contemporary American Drop Earrings

Materials

Diamond, Sapphire, Gold, 18k Gold

GIA 21.66 Carat Tanzanite Diamond Platinum Flower Halo Cocktail Ring
Located in Miami, FL
weighing approximately 21.66 carats. Complimenting the sides, there are (8) marquise cut, (10) pear cut
Category

1990s Retro Cocktail Rings

Materials

Diamond, Tanzanite, Platinum

Harry Winston 1.60 Carat F Color Diamond Solitaire Platinum Engagement Ring
By Harry Winston
Located in Los Angeles, CA
Harry Winston GIA report certified 1.60 carat cushion-cut diamond F color VVS2 clarity, platinum
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Platinum

Cushion Blue Topaz with Diamond Ruby Art Deco Style Ring in 14k White Gold
Located in Bangkok, TH
This exceptional chic ring features a cushion cut blue topaz weighing approximately 7.20 carats
Category

21st Century and Contemporary Thai Art Deco Engagement Rings

Materials

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

New 6.10 Carat Pink Padparadscha Diamond Cut Sapphire Y Gold PL Sterling Ring
Located in Eagan, MN
fancy cushion cut stone and is 6.10 carats. It is a very high-quality stone. It measures 10 x 9.2 mm
Category

2010s Unknown Art Deco Cocktail Rings

Materials

Padparadscha Sapphire , Sapphire, Yellow Gold, Gold, Sterling Silver, Si...

GIA Certified 1.12 Carat Fancy Brownish Yellow VVS1 Clarity Diamond Ring
Located in บางรัก, TH
Clarity: VS1/VS2 Cut: Pear 3) Marquise Diamonds Carat weight: 0.234 ct (8 pcs) Color: F Clarity
Category

2010s Asian Engagement Rings

Materials

Diamond, 18k Gold, White Gold

4.92 Carat Apatite Garnet Citrine Diamond 14 Karat White Gold Cocktail Ring
By Roshe Jewels
Located in Los Angeles, CA
, Purple Garnet, Citrine and Diamond Ring. This ring has a 2.07 Carat Cushion Cut Apatite in the center
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Citrine, Diamond, Garnet, Apatite, 14k Gold, White Gold

Ravishing 19.57 Carat Fancy Yellow Diamond 18k Yellow Gold Tennis Bracelet
Located in Tustin, CA
bracelet features 34 perfectly matched, cushion modified brilliant cut fancy yellow diamonds, set in four
Category

21st Century and Contemporary Unknown Contemporary Tennis Bracelets

Materials

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

14.00 Carat Kunzite, Sapphire and Diamond 14 Karat Rose Gold Cocktail Ring
By Roshe Jewels
Located in Los Angeles, CA
Sapphires that weigh 2.13 Carats. This gorgeous ring is also accented with 8 Round Cut Natural Diamonds that
Category

21st Century and Contemporary American Modern Cocktail Rings

Materials

Diamond, Kunzite, Sapphire, Pink Sapphire, Blue Sapphire, 14k Gold, Rose...

5 Carat Green Amethyst 14 Karat Cocktail Ring with Diamond Accents
Located in Mount Kisco, NY
A faceted natural green five carat cushion cut amethyst headlines this elegant cocktail ring made
Category

Vintage 1980s Unknown Cocktail Rings

Materials

Amethyst, Diamond, 14k Gold, Yellow Gold

2.11 Carat T.W. Yellow Diamond 14 Karat Two-Tone Gold Bracelet
Located in New York, NY
This beautiful bracelet is crafted in 14-karat Two Tone Gold. It features 8 glistening cushion cut
Category

20th Century Chinese Art Deco Modern Bracelets

Materials

Diamond, Yellow Diamond, Gold, 14k Gold, White Gold, Yellow Gold

Natural Sapphire Diamond Gold Ring, 15.02 Carat No Treatment Guild Lab Report
Located in Beverly Hills, CA
Classy and timeless Princess D style ring featuring a 15.02-carat natural non-heated cushion cut
Category

Early 2000s Unknown Cocktail Rings

Materials

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

Exquisite 18.78 Carat Ceylon Sapphire and Diamond 18 Karat Gold Tennis Bracelet
Located in Tustin, CA
box closure with two “figure 8” safety clasps on each side for added security. 12 matched cushion cut
Category

20th Century Unknown Contemporary Tennis Bracelets

Materials

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

Blue-Green Tourmaline and Asscher-Cut Diamond Ring
Located in Los Angeles, CA
Blue-Green Tourmaline and Asscher-Cut Diamond Ring It is widely known that tourmalines come in
Category

Early 2000s American Contemporary Cluster Rings

Materials

Diamond, Tourmaline, 18k Gold, Platinum

Large 3.50 Carat Tanzanite and Diamond Cocktail Ring in 18K White Gold
Located in Honolulu, HI
Purple Shape: Cushion Cut: Checkers Total Carat Weight: Approximtaley 3.50 Carats Diamonds: 16 Round
Category

21st Century and Contemporary American Modern Cocktail Rings

Materials

Diamond, Tanzanite, Paraiba, 18k Gold, White Gold

18K Ruby Diamond Ring Vintage Unheated GIA Certified VS Fine Huge 13.68 Carats!
Located in Sylvania, GA
Certified Natural Unheated Cushion Faceted Cut Ruby – 11.96 carats 58 Sparkling Round Brilliant Cut
Category

20th Century Cocktail Rings

Materials

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

Art Deco Style 5.60 Carat White Diamond Tanzanite Yellow Gold Cocktail Ring
By Luigi Ferrara
Located in Naples, IT
This Ring is made of 14K Yellow Gold. This Ring has 0.30 Carats of White Brilliant Cut Diamonds
Category

21st Century and Contemporary Italian Art Deco Cocktail Rings

Materials

Diamond, White Diamond, Tanzanite, 14k Gold, Yellow Gold

Rare 53.66 Carat Natural Precious Topaz and Diamond Pendant, Ring and Brooch Set
Located in Tustin, CA
one very large modified mixed cushion cut natural Precious Imperial Topaz weighing 45.91 carats. The
Category

20th Century American Artisan Pendant Necklaces

Materials

Diamond, Topaz, 18k Gold, Yellow Gold

Victorian 1.91 Carat Pink Sapphire and Diamond Gold Ring Estate Fine Jewelry
Located in Montreal, QC
Sapphire, weighing approx. 1.91 Carat; 8 rose diamonds, weighing approx. 0.16 total carat weight surround
Category

Antique Late 19th Century British Victorian Cocktail Rings

Materials

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

Art Deco Style 5.60 Carat White Diamond Tanzanite Yellow Gold Cocktail Ring
By Luigi Ferrara
Located in Naples, IT
This Ring is made of 14K Yellow Gold. This Ring has 0.30 Carats of White Brilliant Cut Diamonds
Category

21st Century and Contemporary Italian Art Deco Cocktail Rings

Materials

Diamond, White Diamond, Tanzanite, 14k Gold, Yellow Gold

Three Colombian Cabochon Emeralds Diamond 7.70 Carat 18 Karat Gold Cluster Ring
By OGI Ltd
Located in New York, NY
emeralds, each with its unique charm, nestled amidst a brilliant cluster of diamonds, totaling 7.70 carats
Category

2010s American Contemporary Cocktail Rings

Materials

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

1900 Emerald and 2.66 Carat Diamond Yellow Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
. Emerald Quality Colour Green Cut Cushion Content 0.55 carat Dimensions 5.02mm x 4.05mm x 3.57mm
Category

Antique Early 1900s British Cocktail Rings

Materials

Diamond, Emerald, 15k Gold, 22k Gold, White Gold, Yellow Gold

Hallmarked B ham 1898 Ruby and Diamond 18 Carat Star-Set 3 Stone Gypsy Ring
Located in Baltimore, MD
18k diamond gypsy ring adorned with 2 cushion cut rubies and 1 center diamond encased in 8 pointed
Category

Antique 1890s British Victorian Band Rings

Materials

Diamond, Ruby, 18k Gold

Victorian 1.90 Total Carat Diamond 3-Stone Bangle Bracelet
Located in Narberth, PA
front. The bezel set diamonds are old Mine Cut and old Cushion Cut stones, which have estimated H-I
Category

Antique 1880s Victorian Bangles

Materials

Diamond, 14k Gold

2.00 Carat Art Deco Diamond Gold Platinum Engagement Ring
Located in Firenze, IT
Designed as stylized number 8 with two millegrain set cushion cut diamonds weighing approximately
Category

Vintage 1920s Italian Art Deco Engagement Rings

Materials

Diamond, Yellow Gold, Platinum

Victorian Sapphire No Heat and Diamond Cluster Ring, 1880s
Located in Idar-Oberstein, DE
gemological certificate. It is surround by a diamond cluster consisting of 8 old European cushion shaped
Category

Antique 1880s Victorian Cluster Rings

Materials

Diamond, Sapphire

Engraved Cushion Shape Natural Aquamarine Blue Sapphire Oval Cab Yellow Gold
By Tutti Frutti Jewellery
Located in Bangkok, TH
. and weighing 54 Carats with a nice Oval Blue Sapphire Cabochon measuring 6 mm x 8 mm set in 14 kt
Category

Vintage 1980s Thai Contemporary Cocktail Rings

Materials

Aquamarine, 14k Gold, Yellow Gold

Engraved Cushion Shape Natural Aquamarine Blue Sapphire Oval Cab Yellow Gold
By Tutti Frutti Jewellery
Located in Bangkok, TH
. and weighing 54 Carats with a nice Oval Blue Sapphire Cabochon measuring 6 mm x 8 mm set in 14 kt
Category

Vintage 1980s Thai Contemporary Cocktail Rings

Materials

Aquamarine, 14k Gold, Yellow Gold

Mint Tourmaline Paraiba Tourmaline Cabochon Diamond Pave Ring
By Joke Quick
Located in Antwerp, BE
pattern. 18K Rose gold 10.3 g 8 X Cushion-cut Mint Tourmaline : 1.01 ct. 8 X Round-cut Mint Tourmaline
Category

2010s Belgian Artist Fashion Rings

Materials

Diamond, White Diamond, Tourmaline, Paraiba, 18k Gold, Rose Gold

GIA Certified 4.09 Carat Natural Emerald Fancy Yellow Diamonds Ring 18 Karat
Located in New York, NY
side (2) cushion cut fancy yellow diamonds. & 1.04ct natural fancy canary yellow diamond accents set
Category

2010s American Three-Stone Rings

Materials

Yellow Diamond, Emerald, 18k Gold, Yellow Gold

Pair of Gold, 6.5 Carat Sapphire, Cabochon Ruby and Diamond Clip-On Earrings
Located in New York, NY
2 cushion-shaped sapphires ap. 6.50 cts., 6 round cabochon rubies, 6 small single-cut diamonds, c
Category

Vintage 1940s Clip-on Earrings

Materials

Diamond, Ruby, Sapphire, Gold

Klebanoff Grossman 1940 s Antique GIA Natural Blood Red Ruby Diamond Ring Plat
Located in Dearborn, MI
Stunning piece of jewelry featuring a 1.10 Carat Genuine Cushion Cut Natural Blood Red Ruby. 1.10 Carat
Category

Vintage 1940s Art Deco Engagement Rings

Materials

Diamond, Ruby, Platinum

Amethyst Diamond Platinum Cocktail Ring
Located in Los Angeles, CA
round brilliant-cut diamonds totaling approximately 0.56 carat, approximately G – H color, VS clarity
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Amethyst, Diamond, Platinum

4.75 Carat Natural Loose Colorless Morganite Gemstone for Jewelry Making
Located in Peshawar, PK
: SI Shape: Cushion Cut Color: Color Less Certificate: On Demand Morganite is believed to bring healing
Category

21st Century and Contemporary Brazilian Arts and Crafts Cocktail Rings

Materials

Morganite, Stainless Steel, Silver Plate, Silver

Vintage Diamond Cluster Drop Earrings
Located in Chipping Campden, GB
A spectacular pair of vintage drop earrings each set with beautiful cushion cut white diamonds. The
Category

Vintage 1960s Unknown Drop Earrings

Materials

Diamond, 18k Gold, White Gold, 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.