2 Carat Cushion Cut Diamond
21st Century and Contemporary Contemporary Cocktail Rings
Diamond, Morganite, Rose Gold
21st Century and Contemporary American Contemporary Fashion Rings
Diamond, Yellow Sapphire, Platinum
Vintage 1960s Unknown Modern Drop Necklaces
Diamond, Emerald, Platinum
21st Century and Contemporary Contemporary Cocktail Rings
Diamond, Morganite, 14k Gold, Rose Gold
21st Century and Contemporary Australian Contemporary Engagement Rings
Diamond, Blue Sapphire, Gold, 18k Gold, White Gold
21st Century and Contemporary Unknown Three-Stone Rings
Diamond, Ruby, Platinum
2010s Cocktail Rings
Diamond, Ruby, Gold
2010s Israeli Art Deco Chandelier Earrings
White Diamond, Yellow Diamond, 18k Gold, White Gold, Gold
2010s Loose Gemstones
Aquamarine
Early 20th Century Clip-on Earrings
Citrine, Diamond, Rose Gold
Antique 1890s British Victorian Cluster Rings
Diamond, Blue Sapphire, 15k Gold
Late 20th Century British Retro Cluster Rings
White Diamond, Emerald, 18k Gold
Vintage 1920s Art Deco Cluster Rings
Diamond, Blue Sapphire, 18k Gold, Platinum
20th Century Russian Empire Pendant Necklaces
Diamond, Tanzanite, White Gold
2010s Thai Modern Engagement Rings
Diamond, Ruby, 18k Gold, Yellow Gold
21st Century and Contemporary American Modern Engagement Rings
Diamond, Yellow Diamond, Pink Diamond, 18k Gold
Early 2000s Unknown Contemporary Three-Stone Rings
Blue Sapphire, 18k Gold, Yellow Gold, Platinum
21st Century and Contemporary French Art Deco Engagement Rings
White Diamond, Blue Sapphire, White Gold
21st Century and Contemporary American Contemporary Fashion Rings
Diamond, Sapphire, Platinum
21st Century and Contemporary Indian Contemporary Three-Stone Rings
Diamond, Ruby, 18k Gold, White Gold
2010s Bridal Rings
Diamond, Emerald, 18k Gold, White Gold
21st Century and Contemporary Drop Earrings
Diamond, Pink Sapphire, White Diamond, 18k Gold, White Gold
Early 20th Century Edwardian Brooches
Aquamarine, Diamond, 14k Gold, 18k Gold, Platinum
2010s American Stud Earrings
Diamond, Peridot, 14k Gold, Yellow Gold, Rhodium
21st Century and Contemporary British Contemporary Dangle Earrings
Yellow Diamond, Opal, Fire Opal, 18k Gold
2010s American Modern Fashion Rings
White Diamond, Blue Sapphire, 18k Gold, White Gold
2010s American Modern Fashion Rings
Amethyst, Citrine, White Diamond, 18k Gold
Vintage 1920s Art Deco Cocktail Rings
Diamond, Sapphire, 18k Gold, White Gold
2010s Thai Modern Drop Earrings
Diamond, Spinel, 18k Gold, White Gold
2010s Sri Lankan Loose Gemstones
White Diamond, Sapphire, Yellow Sapphire
2010s Thai Neoclassical Drop Earrings
Diamond, Spinel, 18k Gold, Yellow Gold
2010s Thai Modern Cocktail Rings
Diamond, Ruby, 18k Gold, White Gold
2010s Engagement Rings
Yellow Diamond, Emerald, 18k Gold, Rose Gold, White Gold, Yellow Gold
21st Century and Contemporary Australian Contemporary Engagement Rings
Diamond, White Diamond, Spinel, 18k Gold, Rose Gold, White Gold
2010s Thai Modern Drop Earrings
Diamond, Ruby, 18k Gold, White Gold
2010s Thai Modern Drop Earrings
Diamond, Spinel, Tsavorite, 18k Gold, White Gold
2010s Thai Modern Drop Earrings
Diamond, Sapphire, Spinel, 18k Gold, White Gold
21st Century and Contemporary Modern Drop Earrings
Diamond, White Diamond, Yellow Diamond, Platinum
Vintage 1970s European Cocktail Rings
Amethyst, Diamond, 18k Gold, Yellow Gold
21st Century and Contemporary Thai Artisan Drop Earrings
Diamond, Peridot, Spinel, 18k Gold, Yellow Gold
21st Century and Contemporary Thai More Earrings
Amethyst, Citrine, Diamond, Gold Plate
2010s Belgian Contemporary Three-Stone Rings
Aquamarine, White Diamond, 18k Gold, White Gold, Rhodium, Palladium
21st Century and Contemporary Thai Artisan Drop Earrings
Diamond, Ruby, Spinel, 18k Gold, White Gold
21st Century and Contemporary Three-Stone Rings
Diamond, White Diamond, Sapphire, Pink Sapphire, 18k Gold, White Gold
21st Century and Contemporary Contemporary Engagement Rings
Diamond, Gold, 18k Gold, White Gold
21st Century and Contemporary Drop Earrings
Diamond, White Diamond, Yellow Diamond, 18k Gold, Yellow Gold, Platinum
21st Century and Contemporary Australian Contemporary Engagement Rings
Diamond, Tourmaline, Gold, 18k Gold, White Gold
2010s Australian Victorian Cocktail Rings
Tourmaline, White Diamond, Ruby, Gold, Yellow Gold, 18k Gold
2010s Australian Artisan Dinnerware and Flatware Sets
Diamond, Pearl, 18k Gold, Platinum
Antique Late 19th Century Victorian Chandelier Earrings
Diamond, White Diamond, 18k Gold
2010s American Modernist Cuff Bracelets
Diamond, Sapphire, Platinum
21st Century and Contemporary Modern Drop Earrings
Diamond, Pink Diamond, White Diamond, 18k Gold, Rose Gold, White Gold
21st Century and Contemporary Thai Drop Necklaces
Amethyst, Citrine, Diamond, Garnet, Quartz, Pink Sapphire, Tourmaline, R...
Antique 1880s Georgian Brooches
Diamond, Gold, Silver
21st Century and Contemporary Unknown Contemporary Drop Earrings
Ruby, White Diamond, 18k Gold, White Gold
2010s Sri Lankan Modern Engagement Rings
Diamond, Yellow Diamond, Blue Sapphire, Platinum
Late 20th Century Cocktail Rings
Diamond, Ruby, 18k Gold, White Gold
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2 Carat Cushion Cut Diamond For Sale on 1stDibs
How Much is a 2 Carat Cushion Cut Diamond?
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 rings, vintage engagement rings or Art Deco engagement rings.
Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.
- 1stDibs ExpertNovember 8, 2023How big a 2-carat diamond with a princess cut is varies from piece to piece. However, the average size is 7 millimeters by 7 millimeters. The measurement is around 9/32 inches, so a 2-carat princess-cut diamond will be just a little over a quarter-inch in size. On 1stDibs, find an assortment of princess-cut diamond jewelry.
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Ancient Egyptians referred to the vibrant stone as the “gem of the sun.”
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Colorful Gemstones Are a Brilliant Choice for Engagement Rings
If diamonds don’t seem right, what about a magnificent sapphire, ruby or emerald?
Our Guide to Fancy-Colored Diamond Engagement Rings
Accounting for just 1 percent of all diamonds, these marvels of nature are exceedingly rare and gorgeously complex.
Our Guide to Victorian, Edwardian and Art Deco Engagement Rings
Learn about these antique jewelry styles, then choose a design that speaks to you.