2 Carat Cushion Cut Diamond
Vintage 1910s British Edwardian Cluster Rings
Diamond, Ruby, 18k Gold, Yellow Gold, Platinum
Vintage 1910s Unknown Cluster Rings
Diamond, Ruby, Yellow Gold, Platinum
21st Century and Contemporary British Engagement Rings
Diamond, Platinum
2010s Canadian Contemporary Cocktail Rings
Aquamarine, Diamond, Gold, 14k Gold
21st Century and Contemporary Unknown Modern Choker Necklaces
Diamond, Gold, 14k Gold, White Gold
2010s Indian Art Deco Three-Stone Rings
Diamond, Gold, 18k Gold, Yellow Gold
2010s American More Earrings
Diamond, Pearl, Tourmaline, 14k Gold, 18k Gold, White Gold
2010s American More Earrings
Diamond, Pearl, Tourmaline, 14k Gold, 18k Gold, White Gold
2010s Thai Modern Dangle Earrings
Diamond, Ruby, 18k Gold, White Gold
Antique Late 19th Century European Victorian Engagement Rings
Diamond, Sapphire, 18k Gold
Vintage 1920s British Art Deco Three-Stone Rings
Diamond, Sapphire, Platinum
21st Century and Contemporary Three-Stone Rings
Citrine, Diamond, Peridot, 18k Gold, White Gold, Gold
21st Century and Contemporary American Contemporary Dangle Earrings
Diamond, White Diamond, Yellow Diamond, Gold, 18k Gold, White Gold, Yell...
21st Century and Contemporary North American Art Deco Pendant Necklaces
Diamond, Zircon, Blue Zircon, 18k Gold, Yellow Gold, Platinum
21st Century and Contemporary Indian Contemporary Cocktail Rings
Aquamarine, Diamond, Blue Sapphire, 18k Gold, White Gold
Vintage 1950s Brooches
Aquamarine, Diamond, Ruby
2010s American Cocktail Rings
Diamond, Tanzanite, 14k Gold, White Gold
Vintage 1940s British Art Deco Cluster Rings
Diamond, Sapphire, Platinum
21st Century and Contemporary American Contemporary Solitaire Rings
Diamond, Yellow Sapphire, Platinum
Vintage 1920s Unknown Art Deco Engagement Rings
Diamond, 18k Gold, White Gold
Vintage 1920s Art Deco Three-Stone Rings
Diamond, Sapphire, Blue Sapphire, Platinum
Late 20th Century Sri Lankan Cocktail Rings
Alexandrite, Diamond, Platinum
2010s American Solitaire Rings
Diamond, Sapphire, 14k Gold, White Gold
Antique Late 19th Century French Napoleon III Clamper Bracelets
Diamond, White Diamond, Gold, 18k Gold, Enamel, Yellow Gold
Vintage 1930s Unknown Engagement Rings
Diamond, Sapphire, Platinum
Vintage 1980s Cocktail Rings
Diamond, Peridot, 18k Gold, Yellow Gold
Late 20th Century Unknown Modern Cocktail Rings
Diamond, Topaz, Blue Topaz, White Gold, 14k Gold
Vintage 1920s Art Deco Engagement Rings
Diamond, Ruby, Platinum
21st Century and Contemporary American Contemporary Three-Stone Rings
Diamond, Spinel, 18k Gold, Yellow Gold, Platinum
2010s Greek Contemporary Pendant Necklaces
Diamond, White Diamond, Tourmaline, Gold, 18k Gold, Yellow Gold
21st Century and Contemporary American Contemporary Three-Stone Rings
Diamond, White Diamond, Emerald, Gold, 18k Gold, White Gold
Antique 1880s British Victorian Three-Stone Rings
Diamond, Ruby, 18k Gold, Yellow Gold
Antique 1880s British Victorian Three-Stone Rings
Diamond, Sapphire, 18k Gold, Yellow Gold
Mid-20th Century Engagement Rings
Diamond, Sapphire, Green Sapphire, Platinum
2010s Israeli Drop Earrings
Diamond, 18k Gold, White Gold
Antique 1890s English Victorian Brooches
Diamond, Pearl, Rose Gold, Sterling Silver
Early 20th Century Art Deco Cocktail Rings
Diamond, Emerald, Platinum
2010s Belgian Contemporary Cocktail Rings
Diamond, Emerald, Tourmaline, 18k Gold, Yellow Gold, White Gold
Vintage 1950s American Art Deco Pendant Necklaces
White Diamond, Emerald, Ruby, Blue Sapphire, Diamond, Platinum
Early 20th Century French Belle Époque Band Rings
Diamond, White Diamond, Gold, 18k Gold, Yellow Gold
Vintage 1960s Clip-on Earrings
Diamond, Sapphire, 18k Gold
Vintage 1940s Unknown Art Deco Cluster Rings
Diamond, Sapphire, 18k Gold, Platinum
2010s Israeli Stud Earrings
Diamond, 18k Gold, Yellow Gold
21st Century and Contemporary Unknown Clip-on Earrings
Diamond, Peridot, Sapphire, 18k Gold, White Gold, Yellow Gold
21st Century and Contemporary Cocktail Rings
Diamond, Opal, Pink Sapphire, 14k Gold, White Gold
Late 20th Century Asian Baroque Bangles
Diamond, Opal, Black Opal, 18k Gold, Silver
2010s American Contemporary Clip-on Earrings
Chalcedony, Yellow Diamond, Agate, White Diamond, 18k Gold
21st Century and Contemporary American Engagement Rings
Diamond, White Diamond, Zircon, Sterling Silver
21st Century and Contemporary Contemporary Engagement Rings
Diamond, 18k Gold, White Gold
Antique Late 19th Century Boxes and Cases
Diamond, Ruby, 14k Gold
21st Century and Contemporary Three-Stone Rings
Diamond, Blue Diamond, Pink Diamond
Early 20th Century European Art Deco Cocktail Rings
Diamond, Emerald, 14k Gold, White Gold, Yellow Gold
1990s Contemporary Band Rings
Diamond, Tourmaline, 18k Gold, Yellow Gold
2010s Singaporean Drop Earrings
Diamond, 14k Gold, White Gold
21st Century and Contemporary American Contemporary Drop Earrings
Diamond, Yellow Diamond, Gold, 18k Gold, White Gold, Yellow Gold
2010s American Modern Cluster Rings
Diamond, White Diamond, Yellow Diamond, 18k Gold, White Gold, Yellow Gold
Early 20th Century Russian Art Nouveau Solitaire Rings
Diamond
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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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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.