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4.93 Carat Coral Diamond White Gold Cocktail Ring
By DGI
Located in Los Angeles, CA
The Coral weighs 4.20 Carats and is adorned by 34 Round Cut White Diamonds weighing 0.73 Carats
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Coral, Diamond, 14k Gold, White Gold

2.26 Carat Pink Tourmaline Diamond 14 Karat Rose Gold Ring
By DGI
Located in Los Angeles, CA
Cushion Cut Pink Tourmaline that weighs 1.73 Carats. Floating around the tourmaline are 74 Round Cut
Category

21st Century and Contemporary American Contemporary Cluster Rings

Materials

Diamond, Tourmaline, 14k Gold, Rose Gold

Emerald Cut Diamond Bezel Solitaire Ring
By Claudia Endler
Located in los angeles, CA
diamond solitaire and size in mind. Stone with bezel measures 11 x 9mm and band is approximately 3.0 mm
Category

21st Century and Contemporary American Contemporary Solitaire Rings

Materials

Aquamarine, Diamond, Spinel, 14k Gold, White Gold

Art Deco style 1.0 Carat Solitaire Diamond Plus Onyx Platinum Engagement Ring
Located in Napoli, IT
Centred by 1 oval cushion old mine cut Diamond of extreme beauty and rarity, set in much result within the
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Onyx, Platinum

5.21 Carat Thai Heat Ruby Ring with 4.55 Carats of Diamonds
Located in New York, NY
White Diamonds (13 Total) 2.75 Carats of Round-Cut Baguette-Cut Diamonds (11 Total)
Category

Late 20th Century American Contemporary Fashion Rings

Materials

Diamond, Ruby, 18k Gold, White Gold

Breathtaking Edwardian 2.95 Carat Old Diamond Platinum Engagement Cluster Ring
Located in Napoli, IT
; daisy shape Diamond cluster ring strong enough for daily wear Boasts a selection of 11 old cut Diamonds
Category

Vintage 1910s Edwardian Cluster Rings

Materials

Diamond, Platinum

Art Deco .77 Ct Natural No Heat Ceylon Sapphire .55 Carat Diamond Platinum Ring
Located in Napoli, IT
brilliant cut diamonds totalling approx .55 Ct (G-VVS/VS) UK size: N 1/4 US size: 6 3/4 Measures: head is 11
Category

Vintage 1920s Art Deco Cluster Rings

Materials

Diamond, Sapphire, Platinum

Natural Giant 25 carat Purple Kunzite Ring
Located in Fukuoka City, Fukuoka
◆Detail description◆ ◆Solid 18kt Gold (shown in picture) ◆Stone Weight: 25 CT ◆Diamond Carat
Category

2010s Dome Rings

Materials

Diamond, Kunzite, 18k Gold

Art Deco Style 2.83 Carat Burma Blue Sapphire and Diamond Platinum Ring
Located in London, GB
ART-DECO STYLE 2.83 ct. BURMA BLUE SAPPHIRE AND DIAMOND PLATINUM RING, set with a cushion cut
Category

20th Century Unknown Art Deco Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

18k Two-Tone Gold 6.15 Carat Emerald Solitaire Ring Diamond Accents, Size 6.25
Located in Sherman Oaks, CA
Gorgeous square-shaped cushion cut emerald set in an 18k yellow gold basket. 18k white gold band
Category

21st Century and Contemporary Unknown Modern Solitaire Rings

Materials

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

7.52 Carat Blue Topaz Sapphire Diamond 14 Karat White Gold Ring
By DGI
Located in Los Angeles, CA
blue topaz is 11 mm x 15 mm. It is surrounded by a halo of 4 Round Cut Diamonds that weigh 0.12 carats
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

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

3.00 Carat Sapphire, Platinum and Diamond Edwardian Ring
Located in San Francisco, CA
A rich royal blue cushion-cut sapphire, weighing 3.00 carats, radiates from within a finely
Category

Early 20th Century Edwardian Engagement Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum

Antique 1.80 Carat No Heat Purple Ceylon Sapphire 2.0 Carat Diamond Navette Ri
Located in Napoli, IT
antique cushion cut intense reddish Purple almost colour change having some red lamps in it when getting
Category

Antique 1880s Victorian Cluster Rings

Materials

Diamond, Sapphire, 18k Gold

21st Century 18 Karat White Gold 2.3-Carat Ruby and G-VS Diamond Cocktail Ring
By FANCS V by Simona Elia
Located in Palermo, Italy PA
precious gemstones are expertly combined. At the heart of this ring lies a beautiful cushion-cut ruby
Category

20th Century Italian Contemporary Cocktail Rings

Materials

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

Original Art Deco Platinum Diamond Dress Ring 2.98 Carat
Located in Perth, AU
like royalty! Centre old cushion facetted cut diamond of 0.52ct I/SI with 4 diamonds in the centre row
Category

Vintage 1920s British Art Deco Cocktail Rings

Materials

Diamond, Platinum

18K White Gold Bronze 4.2 Carat Pink Tourmaline Cocktail Ring by Jochen Leën
By Jochen Leën
Located in Antwerp, BE
18 Karat White gold & Bronze Cocktail Ring featuring a carat Pink Tourmaline stone. Cushion cut
Category

2010s Belgian Contemporary Cocktail Rings

Materials

Diamond, Tourmaline, 18k Gold, White Gold, Bronze

18 Karat Gold and Diamonds Original 1930s Buccellati Set
By Buccellati
Located in Miami Beach, FL
clips. The suite has a heavy gold patina and weighs a total of 313 grams. The 18 old mine cut diamonds
Category

Vintage 1950s Italian Link Necklaces

Materials

Brown Diamond, 18k Gold

Rhodium-Plated Dangle Earrings with Citrine, Amethyst and Diamonds
Located in New York, NY
cushion-cut citrine 11 carats of cushion-cut amethyst 17.28 carats of pear-cut citrine 0.738 carats of
Category

21st Century and Contemporary Thai Dangle Earrings

Materials

Amethyst, Citrine, Diamond, Rhodium

Art Deco Emerald Diamond Platinum Drop Earrings
Located in Hartsdale, NY
highlighting a stunning matched pair of old cushion cut diamonds which we have conservatively graded as I-J/VS1
Category

Vintage 1920s Unknown Art Deco Drop Earrings

Materials

White Diamond, Emerald, Platinum

Unheated Men Ruby Ring, 18k White Yellow Gold and Diamonds Ring
Located in Bangkok, TH
cushion cut total carat weight 2.89 ct. • Diamonds, 44 pc round cut – total carat weight 0.19. • Ring
Category

2010s Thai Modern Fashion Rings

Materials

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

Georgian Goddess Chrysoberyl Diamond Ring
Located in Wimberley, TX
and cushion cut diamonds which frames the glorious light green stone features that characteristic open
Category

Antique Early 19th Century Georgian More Rings

Materials

Diamond, Gold Plate

Trianon Lapis Turquoise Pearl Diamond Gold Earrings
By Trianon
Located in Portland, ME
18K Yellow gold Trianon lapiz, turquoise, pearl and diamond earrings. The cushion cut lapiz base
Category

Vintage 1980s Clip-on Earrings

Materials

Diamond, Lapis Lazuli, Pearl, Turquoise, 18k Gold

Fabergé Katharina 18K Yellow Gold 21.17ct Topaz Ring W/ Diamonds, US Clients
By Fabergé
Located in London, GB
a step cut cushion topaz of 21.17 carats, set with round white and brown diamonds, fire opals
Category

2010s British More Rings

Materials

White Diamond, Yellow Gold

Fine Vintage Natural 1.16 Ct No Heat Siam Ruby .80 Ct G VVS Diamond Cluster ring
Located in Napoli, IT
Desired Red! AN UNHEATED RUBY AND DIAMOND RING set with a central oval cut ruby of 1.16 carats
Category

Vintage 1960s Contemporary Cluster Rings

Materials

Diamond, Ruby, 18k Gold

11 Carat Cushion Cut Diamond Engagement Ring GIA Certified FLY SI1
Located in New York, NY
SUNNA -YELLOW DIAMOND ENGAGEMENT RING BY MIKE NEKTA GIA CERTIFIED Center Diamond Carat Weight: 10
Category

2010s American Engagement Rings

Materials

Diamond, Yellow Diamond, Platinum

Fancy Blue and White Diamond Engagement Ring, Platinum Cushion Cut 1.45 Carat
Located in Greensboro, NC
(solitaire); G (accents) Cuts: Cushion (solitaire) & Baguette (accents) Solitaire’s Carat: 1.17ct Accents
Category

20th Century Unknown Engagement Rings

Materials

Diamond, Blue Diamond, Platinum

4.75 Carat Cushion Cut Rose Amethyst and White Diamond Pendant
By Alberto
Located in GREAT NECK, NY
Material: 14k White Gold Center Stone Details: 4.75 Carat Cushion Cut Rose Amethyst 11 mm Mounting
Category

2010s American Contemporary Pendant Necklaces

Materials

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

Exquisite 1.02ct Double Excellent Ideal Cut Cushion-Shaped Diamond - IGI
Located in רמת גן, IL
Exquisite 1.02ct Double Excellent Ideal Cut Cushion-Shaped Diamond - IGI Certified Elevate your
Category

2010s Israeli Loose Gemstones

Materials

Diamond

De Beers 2.24 Carat Cushion Cut Diamond Platinum Solitaire Ring
By De Beers
Located in Beverly Hills, CA
. Diamond total weight is 3.21 carats. The cushion cut diamond comes with a GIA Diamond Grading Report
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

Antique Certified 2.00ct Old Cushion Cut Diamond Ring in 18k Yellow Gold
Located in London, GB
A beautiful antique certified 2.00ct old cushion cut diamond ring set in 18k yellow gold. The
Category

Antique Early 1900s British Modern Cocktail Rings

Materials

Diamond, 18k Gold, Yellow Gold

Tacori 11 carat Rutilated Quartz Black Spinel .07 carat Diamond 18K Gold Ring
By Tacori
Located in Austin, TX
set evenly around the center gemstone. There is a total diamond weight of .11 carat. The diamonds add
Category

21st Century and Contemporary American Artisan Fashion Rings

Materials

Diamond, White Diamond, Quartz, Spinel, 18k Gold, Sterling Silver

3.00 Carat Cushion Tanzanite and Diamond Halo Ring, 950 Platinum Engagement GIA
Located in Greensboro, NC
x 6.6mm Carat: 2.08ct (weighed) Natural Diamonds - Clarity: VS1 - VS2 Color: E - F Cut: Round
Category

21st Century and Contemporary Unknown Engagement Rings

Materials

Diamond, Tanzanite, Platinum

Superb Natural 11 carat Ceylon Sapphire Diamond Ring
Located in Beverly Hills, CA
A beautiful deep blue lively 11.76 carat cushion cut sapphire that is accompanied with an AGL
Category

1990s American Modern More Rings

Materials

Blue Sapphire, Diamond, Platinum

Cushion Cut Green Amethyst Multi Color Sapphire Diamond Rainbow Pendant on Chain
By Alberto
Located in GREAT NECK, NY
Material: 14k Yellow Gold Center Stone Details: 1 Cushion Cut Green Amethyst at 3.60 Carats
Category

2010s American Contemporary Pendant Necklaces

Materials

Amethyst, Diamond, White Diamond, Sapphire, Blue Sapphire, Yellow Sapphi...

White Gold Amethyst Diamond Halo Ring, 14k Cushion Cut 4.36ctw
Located in Greensboro, NC
: 14k White Gold Stone Information: Genuine Amethyst Carat: 4.08ct Cut: Cushion Color: Purple
Category

20th Century More Rings

Materials

Diamond, Amethyst, White Gold

Valentin Magro Classic Cushion Link Diamond Bracelet in Platinum
By Valentin Magro
Located in New York, NY
strip-shaped pieces hold everything together. Every link glitters with round brilliant cut diamonds. A
Category

2010s American Link Bracelets

Materials

Diamond, Platinum

David Yurman Cushion Cut Rutilated Quartz and Diamond 18 Karat Yellow Gold Ring
By David Yurman
Located in Fairfield, CT
Introducing a distinguished David Yurman men's ring, showcasing an 11.1 Carat cushion-cut Rutilated
Category

21st Century and Contemporary American Modernist Signet Rings

Materials

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

Semi-Mount Halo Ring 18k Gold Cushion or Round with Diamond Accents .88 Carat
Located in Greensboro, NC
: Natural Diamonds - Clarity: VS2 - SI1 Color: F - G Cuts: Round Brilliant & Baguette Total Carats
Category

21st Century and Contemporary Unknown Engagement Rings

Materials

Diamond, 18k Gold, White Gold

11 Carat Yellow Sapphire and Diamonds Cluster Ring, 18 Karat Gold and Platinum
Located in London, GB
heating • Others: 14 Diamonds • Cut: Brilliant • Total carat weight: 2ct approximately • Colour: G-H
Category

Vintage 1980s French Cluster Rings

Materials

Yellow Sapphire, 18k Gold, Platinum

Valentin Magro Cushion Drop Coral Earrings
By Valentin Magro
Located in New York, NY
brilliant cut diamond in between adds unexpected brightness. The coral weighs a combined 57.5 carats, while
Category

2010s American Clip-on Earrings

Materials

Coral, 18k Gold

Antique 1.80 Carat Diamonds 18 Karat Yellow White Gold Marquise Ring
Located in Poitiers, FR
antique- cut diamonds. Total diamond weight: about 1.80 carat. Height: 22.4 mm, width: approximately 12.1
Category

Vintage 1980s French Retro Engagement Rings

Materials

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

An 18 Carat Royal Bracelet with the initials WE in diamond and sapphire
By Bonebakker
Located in Amsterdam, NL
An 18 carat yellow gold bracelet of large twisted gold wire with a removable applique with the
Category

Antique 1890s Dutch Victorian Bangles

Materials

Diamond, Sapphire, 18k Gold

Leon Mege 8.53 Carat Honey Tourmaline 18 Karat Gold Ring with Red Diamonds
By Leon Mege
Located in New York, NY
" tourmaline measuring 14.8 x 10.40 mm 78 full cut treated red diamonds 1.25-carat total weight 16 full-cut
Category

2010s American Contemporary Cocktail Rings

Materials

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

Late Victorian GIA 3.33 Carat Ceylon Sapphire and Diamond 14k Gold Cluster Ring
Located in Beverly Hills, CA
GIA cushion cut sapphire of 3.33 carats, accompanied with GIA #2235076082 stating the sapphire is
Category

Antique 1890s Cluster Rings

Materials

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

Alluring 5 carats 81 points Sapphire Natural Diamond Ring with EGL
Located in רמת גן, IL
Dazzle with this 18k white gold ring featuring a captivating 3.50-carat cushion cut sapphire in a
Category

2010s Singaporean Cluster Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

1.96 Carat Natural Burma No Heat Ruby Diamond Ring
Located in New York, NY
A stunning natural antique cushion-cut burmese ruby (no-heat, no oil) ring with brilliant-cut
Category

20th Century British Cluster Rings

Materials

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

5 Carat Made In Italy Amethyst and Diamond Pendant Necklace in 14K Gold
Located in Miami, FL
Diamonds and a 5 Carat Cushion Cut Purple Amethyst Details: - Retro style pendant necklace - Made in
Category

21st Century and Contemporary Retro Pendant Necklaces

Materials

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

9.69 Carat GIA Graded Sapphire Diamond Ring
Located in Miami, FL
Platinum Sapphire and Diamond Ring Featuring a Cushion Cut Oval Sapphire Weighing 9.69 Carats
Category

21st Century and Contemporary American Fashion Rings

Materials

Blue Sapphire, Diamond, Platinum

Vintage 4.10 Carats Sapphire Diamond 18 Karat Two-Tone Gold Pendant Necklace
Located in Philadelphia, PA
dimensional in form with milgrain edges and a radiating design Centering a rectangular cushion cut sapphire
Category

Vintage 1950s Retro Pendant Necklaces

Materials

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

.925 Sterling Silver Purple Amethyst and 1/10 Carat Diamond Tennis Bracelet
Located in New York, NY
prong set cushion cut purple amethyst accentuated by 22 brilliant round cut miracle diamonds in pave
Category

21st Century and Contemporary Indian Contemporary Tennis Bracelets

Materials

Diamond, White Diamond, Amethyst, Sterling Silver

Lovely 1 carat 5 points Sapphire Flower Ring with Diamonds in 18K White Gold
Located in רמת גן, IL
This elegant 18K white gold ring features a stunning 1.05ct cushion-cut sapphire as its centrepiece
Category

2010s Singaporean Cocktail Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

2.53 Carat Diamond Henri Daussi Halo Ring and Wedding Band 14k and 18 Karat Gold
Located in Greensboro, NC
USA-graded and laser inscribed cushion cut diamond solitaire in four prongs above a tiered double halo
Category

21st Century and Contemporary Unknown Engagement Rings

Materials

Diamond, 14k Gold, 18k Gold, White Gold

Art Deco 1930-1935 with Diamonds and Sapphires Platinum Ring
Located in MADRID, ES
A vintage Art Deco ring from the 1930s, crafted in platinum with antique diamonds and custom-cut
Category

Vintage 1930s Unknown Art Deco Cocktail Rings

Materials

Diamond, Sapphire, Platinum

GIA Certified 0.97 Carat Burma Ruby Diamond Platinum Ring
Located in Lexington, KY
carat Cushion Cut Ruby, ~ 1.0 carats Diamonds, Platinum, Ruby carries GIA report "Natural, Burma, Heated
Category

Mid-20th Century Unknown Contemporary Cocktail Rings

Materials

Diamond, Ruby, Platinum

14.26 Carat Total Fancy Assorted Diamond Tennis Bracelet in 18 Karat White Gold
Located in Chicago, IL
contrasted by 22 white princess, cushion cut & emerald cut diamonds totaling 6.90 carats. Handcrafted in
Category

2010s American Contemporary Tennis Bracelets

Materials

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

Art Deco Platinum 7.25 Carat Mine European Diamond Cluster Pendant Necklace
Located in Montclair, NJ
bezel setting which holds a cushion-shaped old European cut diamond weighing approximately 1.65 carats
Category

Vintage 1910s Unknown Art Deco Pendant Necklaces

Materials

Diamond, 14k Gold, Platinum

Chunky Antique 1.83 Carat Old Mine Diamond Halo 18K Victorian Cluster Ring
Located in Santa Barbara, CA
inscribed Diamond: Carat Weight: 1.83 Cut: Old Mine Cushion Color: K-L Clarity: SI1 Accent Diamonds: 11
Category

21st Century and Contemporary Victorian Wedding Rings

Materials

Diamond, 18k Gold, Yellow Gold

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11 Carat Cushion Cut Diamond For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 11 carat cushion cut diamond for your needs in our varied inventory. 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. Making the right choice when shopping for a 11 carat cushion cut diamond may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 20th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. Finding an appealing 11 carat cushion cut diamond — no matter the origin — is easy, but Antinori Fine Jewels, Alberto and GEMME each produced a popular version that is worth a look. See these pages for a cushion cut iteration of this accessory, while there are also antique cushion cut cut and old european cut cut versions available here, too. Most of our 11 carat cushion cut diamond for sale are for women, but there are 21 pieces available to browse for men.

How Much is a 11 Carat Cushion Cut Diamond?

The price for a 11 carat cushion cut diamond starts at $372 and tops out at $435,000 with these rings, on average, selling for $28,999.

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.