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10K White Gold 1/2 Cttw Diamond Cushion Shaped Composite Stud Earrings
Located in New York, NY
, Total Carat Weight: 0.1, Treatment: None • Diamond 3 Clarity: I1-I2, Color: I-J, Count: 16, Cut
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Diamond, White Diamond, Gold, 10k Gold, White Gold

Edwardian 3.15 Carat Old Mine Cut Platinum Engagement Ring
Located in Montgomery, AL
show is a lovely 3.15 Carat Old Mine Cut Diamond, GIA ST Color, SI1 Clarity. Old Mine cuts are known
Category

Early 20th Century Edwardian Engagement Rings

Materials

Diamond, Platinum

1.20 Carat Burmese Sapphire 0.56 Carat Diamond 18k Yellow Gold Ring Circa 1915
Located in Jesmond, Newcastle Upon Tyne
. Sapphire Quality Origin Myanmar (Burma) Color Blue Cut Cushion Content 1.20 carats Dimensions 9.00mm
Category

Vintage 1910s Cocktail Rings

Materials

Diamond, Sapphire, Yellow Gold, Silver

Natural Purple Cushion Spinel Diamond White Gold Platinum Engagement Ring
Located in Stamford, CT
#1152137510 2 Princess cut diamonds, approx. total weight .34cts, G-H, VS 8 Princess cut diamonds, approx
Category

Vintage 1960s Engagement Rings

Materials

Diamond, Spinel, 14k Gold, Platinum, White Gold

Vintage 4.10 Carat Ceylon Sapphire 0.26 Carat Diamond Platinum Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
Cushion Content 4.10 carats Dimensions 8.92mm (length) x 8.46mm (width) x 4.50mm (depth) Diamond Quality
Category

Mid-20th Century Cocktail Rings

Materials

Diamond, Sapphire, Platinum

2.4ct London Blue Topaz Ring w Natural Diamonds in Solid 14K Gold Cushion 9x7mm
Located in Columbus, OH
Weight: 2.44ct Head size: 9x7mm Shape: Cushion Hardness: 8 Metal: 14k/2.3g Diamond Clarity/Color: SI / G
Category

2010s American Modern Cocktail Rings

Materials

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

Peter Suchy 6.38 Carat Blue Tanzanite Princess Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
setting made just for this stone. 1 cushion cut Tanzanite 6.38cts. 12 princess cut diamonds 1.50cts, F
Category

21st Century and Contemporary American Bridal Rings

Materials

Diamond, Tanzanite, Platinum

Art Deco 2.91 Carat Diamond Platinum Engagement Ring
Located in Chicago, IL
cushion cut diamond surrounded by Art Deco diamond-set frame. The center diamond measures 8.75 x 8.70 x
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond

Peter Suchy 6.56 Carat Tanzanite Diamond White Gold Pendant Necklace
By Peter Suchy
Located in Stamford, CT
Tanzanite diamond halo pendant necklace. Cushion tanzanite center stone with a baguette and round
Category

21st Century and Contemporary Pendant Necklaces

Materials

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

Art Deco GIA1.17 Cushion 0.72 Fancy Yellow Diamond Platinum Toi Et Moi Ring
Located in Beverly Hills, CA
GIA cushion cut diamond of 1.17 carats, accompanied with GIA #5211811837 stating the diamond is K
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

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

7.09 Carat Aquamarine and Diamond Platinum Dress Ring
Located in Jesmond, Newcastle Upon Tyne
Color Blue Cut Cushion Content 7.09 carats Dimensions 11.37mm x 9.25mm x 8.84mm Diamond Quality Color
Category

Vintage 1960s Unknown Cocktail Rings

Materials

Aquamarine, Diamond, Platinum

3 Carat Natural Sapphire 3.2 Carat Old Euro Diamond Flower Ring
Located in Cape May, NJ
8 beautiful old European cut diamonds surround a natural 3 carat sapphire to create this lovely
Category

Early 20th Century Revival Engagement Rings

Materials

Diamond, Blue Sapphire, 18k Gold, Yellow Gold

Sleek 10 Carat Tourmaline and Diamond Enhancer Necklace
Located in Santa Barbara, CA
Cushion Color: bluish Green Clarity: Transparent Accent Diamonds: 30 Round Brilliant Cut Diamonds 0.97
Category

21st Century and Contemporary Contemporary Pendant Necklaces

Materials

Diamond, Tourmaline, Platinum

Edwardian Diamond Five-Stone 18 Carat Gold Ring
Located in Chipping Campden, GB
Classic five stone 18ct gold ring holding shimmering cushion cut diamonds. Total diamond weight
Category

Antique Early 1900s Unknown Edwardian More Rings

Materials

Diamond, 18k Gold

Edwardian AGL Certified 13.37 Carat Natural Ceylon Sapphire Diamond Ring
Located in Narberth, PA
center of a sparkling diamond border. The Cushion Mixed Cut stone is of Sri Lankan origin, exhibiting an
Category

Vintage 1910s Unknown Edwardian Cocktail Rings

Materials

Diamond, Sapphire, Platinum, 15k Gold

French 19th Century 3 Carat Diamond Platinum Daisy Ring
Located in Poitiers, FR
surrounded by 8 antique cushion cut and brilliant cut diamonds. Weight of the center diamond
Category

Antique 1870s French Engagement Rings

Materials

Diamond, White Diamond, Platinum

Peter Suchy 6.42 Carat Sapphire Diamond Yellow Gold Dangle Earrings
By Peter Suchy
Located in Stamford, CT
GIA certified sapphire and diamond dangle earrings. 2 Cushion cut orange yellow sapphires
Category

21st Century and Contemporary Dangle Earrings

Materials

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

2.33 Carat Tsavorite and Diamond 18 Karat White Gold Engagement Ring
By Roshe Jewels
Located in Los Angeles, CA
27 Round Cut Diamonds weighing 0.60 carats and 8 Tsavorites that weigh 0.27 carats. The total carat
Category

21st Century and Contemporary Unknown Modern Cocktail Rings

Materials

Diamond, Tsavorite, 18k Gold, White Gold

Antique Victorian 2.36 Carat Diamond and Yellow Gold Twist Ring
Located in Jesmond, Newcastle Upon Tyne
carat Dimensions 6.04mm x 6.01mm x 4.07mm Diamond Two Color F Clarity VVS1 Cut Old European Cushion
Category

Antique 1890s Unknown Victorian Engagement Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

Victorian Revival 18k Gold Old European Cut Diamond Earrings Estate Jewelry
Located in Beverly Hills, CA
Victorian revival earrings feature Old European cut diamonds, approximately 1.30-carat each, K-L color, VS2
Category

Vintage 1960s Unknown Victorian Drop Earrings

Materials

Diamond, Yellow Gold, 18k Gold, White Gold

15 Carat Morganite Diamond Yellow Gold Rope Necklace
Located in Santa Barbara, CA
contemporary style. Suspended below 10 twinkling round diamonds, the exquisite cushion cut gemstone radiates
Category

2010s Modern Pendant Necklaces

Materials

Diamond, Morganite, Gold, 14k Gold, Yellow Gold

Edwardian Dramatic 6.20 carats Diamonds Platinum Earrings
Located in Narberth, PA
measure 7/8" tall and 5/8" wide. The dimensions of one cushion cut diamond are 7.04 x 5.89 x
Category

Vintage 1910s Edwardian Dangle Earrings

Materials

Diamond, Platinum

Art Deco Earrings Platinum Diamond Dangle Antique Cut
Located in Beverly Hills, CA
-I color, VS1 clarity) and 2.23-carat (H-I color, VS2 clarity) cushion cut and 0.30 and 0.35-carat
Category

Vintage 1920s Unknown Art Deco Dangle Earrings

Materials

White Diamond, Platinum

14 Karat White Gold 3.01 Carat Diamond Engagement Ring
Located in Scottsdale, AZ
Designer: custom design Material: 14k white gold Center Diamond: 1 cushion cut= 3.01ct EGL Cert
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 14k Gold, White Gold

16.63 Carat Blue Topaz and Diamond Cocktail Ring
Located in Miami, FL
approximately 3.5 carats total and 60 round brilliant cut diamonds weighing approximately 1 carat total, G-H
Category

21st Century and Contemporary Unknown Modern Cocktail Rings

Materials

Diamond, Topaz, 18k Gold, White Gold

French Modern 1, 17 Carat Ruby Diamonds Platinum Ring
Located in Poitiers, FR
cushion- cut ruby. On either side, a geometric design is set millegrain with 2 x 8 modern brilliant-cut
Category

21st Century and Contemporary French Art Deco Engagement Rings

Materials

Diamond, White Diamond, Ruby, Platinum

Fancy Yellow Diamond Bracelet 18k White Gold 11.04 Carat
Located in MIAMI, FL
fancy yellow diamonds in cushion shape, and round brilliant cut diamonds that accent the design. The
Category

21st Century and Contemporary Unknown Modern Modern Bracelets

Materials

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

Tiffany Co. 8.20 Carats Aquamarine Diamond Platinum Soleste Cocktail Ring
By Tiffany Co.
Located in Philadelphia, PA
Featuring a cushion cut aquamarine weighing approximately 7.35 carats Eye clean with saturated and
Category

Late 20th Century Contemporary Cluster Rings

Materials

Aquamarine, Diamond, White Diamond, Platinum

GIA Certified .30 Carat Sapphire Diamond Pearl Butterfly Pendant Necklace
Located in Stamford, CT
rose cut diamonds, G-I VS-SI approx. .11cts 1 cushion cut blue sapphire, SI approx. .30cts GIA
Category

Antique Mid-19th Century Pendant Necklaces

Materials

Diamond, Pearl, Sapphire, Blue Sapphire, Gold, 14k Gold, White Gold, Yel...

Exquisite 18k White Gold Ring with 1.34 carat Natural Diamond
Located in רמת גן, IL
diamond ring is the perfect choice. 1 diamond main stone of 0.9 carat cut: cushion shape color: D clarity
Category

2010s Israeli Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Contemporary Aquamarine and Diamond, 18 Carat Yellow Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
Cushion Content 12.48 carats Dimensions 18.31mm x 10.65mm x 8.36mm Diamond Quality Color (average
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, Yellow Gold

6.63 Carat Amethyst Pink Sapphire Diamond 14 Karat Rose Gold Cocktail Ring
By Roshe Jewels
Located in Los Angeles, CA
Carats and is embellished with 20 Pink Sapphires that weigh 0.54 Carats as well as 8 Round Cut Diamonds
Category

2010s American Modern Cocktail Rings

Materials

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

Victorian 2.00 Carats Diamonds Gold Anchor Bypass Bracelet
Located in Narberth, PA
Cushion Cut, old Mine Cut, and delicate Rose Cut stones. Each stone is micro prong set and adds a
Category

Antique 1880s Victorian Bangles

Materials

Diamond, 15k Gold

Rare Untreated 2.31 Carat Colombian Emerald Diamond Ring
Located in Chicago, IL
a very rare untreated 2.31 ct Colombian emerald. The cushion cut emerald is extremely clean and full
Category

Vintage 1920s French Cluster Rings

Materials

Emerald

Antique 5.38 Carat Aquamarine and Diamond Yellow Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
An impressive antique 5.38 carat aquamarine and 0.65 carat diamond, 18 karat yellow gold and
Category

Vintage 1920s Unknown Cocktail Rings

Materials

Aquamarine, Diamond, 18k Gold, Yellow Gold

GIA 3.64 carat Ceylon sapphire diamond platinum filigree ring
Located in Beverly Hills, CA
-moon cut and 8 round brilliant cut diamonds totaling approximately 1 carat, graded F color and VS
Category

20th Century Modern Cocktail Rings

Materials

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

Art Deco Style 2.51 Carat Yellow Sapphire Diamonds Platinum Ring
Located in Poitiers, FR
. Total weight of diamonds: about 0.97 carat. Height: 8 mm, width: 17 mm, thickness: 7.7 mm, width of the
Category

21st Century and Contemporary French Art Deco Engagement Rings

Materials

Diamond, White Diamond, Sapphire, Yellow Sapphire, Platinum

Dover Jewelry GIA 3.36 Carats Ceylon Sapphire Diamond Platinum Ring
By Dover Jewelry
Located in Miami, FL
Sapphire Sapphire, octagonal cushion cut, weighing approximately 3.36 carats, with minor heat treatment
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Sapphire, Platinum

Edwardian French 1.50 Total Carat Diamond Earrings
Located in Narberth, PA
stunning design. The earrings hold a beautiful old Cushion Cut diamond that rests in the center of a
Category

Vintage 1910s French Edwardian Lever-Back Earrings

Materials

Diamond, Platinum, 18k Gold

1 Carat Yellow Diamond 18 Karat Two-Tone Engagement Ring
Located in New York, NY
cushion cut Yellow Diamond surrounded by 18 yellow Diamonds 0.11 Carat & 28 Round Diamonds 0.47 Carat
Category

20th Century Chinese Contemporary Fashion Rings

Materials

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

French 3.53 Carat Blue Sapphire Diamonds Pompadour Engagement Ring
Located in Poitiers, FR
daisy ring, its setting is adorned with a rectangular cushion- cut blue sapphire set with claws
Category

21st Century and Contemporary French Belle Époque Engagement Rings

Materials

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

GCS Certified 3.72 carat Sapphire and Diamond Rose Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning vintage Art Deco 3.72 carat sapphire and 1.20 carat diamond, 18 karat rose and white
Category

Vintage 1940s Unknown Art Deco Cocktail Rings

Materials

Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, Rose Gold

Victorian 1.25 Total Carat 3-Stone Diamond Enameled Cherubs Bangle Bracelet
Located in Narberth, PA
Cushion Cut diamond in the center. The sparkling stones are prong set within a lovely etched starburst
Category

Antique 1880s Victorian Bangles

Materials

Diamond, 15k Gold

3.49 Carat Diamond Pink Sapphire Diamond Platinum Three-Stone Engagement Ring
Located in Stamford, CT
sparkly original old cut stones. The center is an old mine cushion shaped brilliant cut 1.66ct diamond
Category

Late 20th Century Engagement Rings

Materials

Diamond, Pink Sapphire, Sapphire, Platinum

13.80 Carat Morganite Diamond Rose Gold Channel Set Cocktail Ring
Located in Beverly Hills, CA
One 13.80 Carat Morganite Diamond Rose Gold Channel Set Cocktail Ring. Featuring one cushion
Category

2010s American Cocktail Rings

Materials

Diamond, Morganite, 14k Gold, Rose Gold

Antique Art Deco 5.85 Carat Blue Sapphire and Diamond Bracelet
Located in Beverly Hills, CA
surrounding it. The magnificent 5.85 carat Bright Blue Burma No Heat Cushion Cut Sapphire and diamond bracelet
Category

Vintage 1920s French Art Deco Tennis Bracelets

Materials

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

Antique 8.66 Carat Sapphire Diamond Engagement Cluster Ring
Located in Chicago, IL
Circa 1890 This antique Russian 14K gold engagement ring features a chunky 8.66 ct cushion cut
Category

Antique Late 19th Century Russian Victorian Cluster Rings

Materials

Blue Sapphire

0.33 Carat Diamond in Platinum Rose Gold Double Halo Pendant on Gold Chain
By Eytan Brandes
Located in Sherman Oaks, CA
cut modified rectangular cushion weighing 0.33 carats. Eytan rates the stone G-H color and VS1-2
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Gold, 14k Gold, Rose Gold, White Gold, Platinum

Edwardian 6.25 Carat Aquamarine Diamond Platinum-Topped 18 Karat Gold Ring
Located in Philadelphia, PA
old mine cut diamonds weighing approximately 0.25 carat total, J/K color and SI clarity Circa 1915
Category

Antique Early 1900s Unknown Edwardian Bridal Rings

Materials

Aquamarine, Diamond, 18k Gold

1900s 42 Carats Diamonds Fringe Necklace
Located in Chicago, IL
cushion cut diamonds. The necklace sparkles with every turn. The largest seven diamonds of the front
Category

Early 20th Century More Necklaces

Materials

Diamond

Modern Gold 3.55 Carat Natural Square Reddish Garnet and Diamond Cocktail Ring
Located in Los Angeles, CA
and is cut with a checkerboard pattern. Included are 8 natural round brilliant diamonds weighing 0.14
Category

2010s Unknown Modern Cocktail Rings

Materials

Diamond, Garnet, 14k Gold

12.00 Carat Pink Tourmaline, Amethyst and Diamond Ring 18 Karat Yellow Gold
Located in Scottsdale, AZ
Designer: custom design Material: 18k yellow gold Pink Tourmaline: 12.00 carat cushion cut pink
Category

21st Century and Contemporary Cocktail Rings

Materials

Amethyst, Diamond, Tourmaline, 18k Gold, Yellow Gold

7.81 Carat Alexandrite Diamond 18k White Gold Ring, GIA Certified
Located in Beverly Hills, CA
complemented by 1.11 carats of round brilliant-cut diamonds which add sparkle and brilliance to the piece. Made
Category

21st Century and Contemporary American Fashion Rings

Materials

Alexandrite, Diamond, 18k Gold, White Gold

1940s 3.31 Carat Sapphire and 1.25 Carat Diamond, Platinum Dress Ring
Located in Jesmond, Newcastle Upon Tyne
report card. Sapphire Quality Colour Natural blue Cut Cushion mixed Content 3.31 carats
Category

Vintage 1940s French Cluster Rings

Materials

Blue Sapphire, Diamond, Sapphire, White Diamond, Platinum

Checkered Cut Green Amethyst 14 Karat Yellow Gold Diamond Art Deco Style Ring
By Alberto
Located in GREAT NECK, NY
14K Yellow Gold 1 Cushion Cut Green Amethyst at 2.77 Carats - 8 x 10 millimeters 24 Brilliant Round
Category

2010s American Contemporary Fashion Rings

Materials

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

Checkerboard Cut London Blue Topaz Diamond Statement Ring in 14K White Gold
Located in Towson, MD
cut London blue topaz stone, approximately 12.00 carat and twenty (20) single cut diamonds
Category

21st Century and Contemporary Contemporary Fashion Rings

Materials

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

Edwardian 1.77 Carat Sapphire Diamond Platinum 18 Karat Gold Navette Ring
Located in Philadelphia, PA
0.45 carat, bright Prussian blue in color Surrounded by old mine and old European cut diamonds
Category

Vintage 1910s Edwardian Cluster Rings

Materials

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

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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.