2 Carat Cushion Cut Diamond
2010s American Fashion Rings
Diamond, Blue Sapphire, 18k Gold
2010s American Fashion Rings
Diamond, Blue Sapphire, 18k Gold
2010s American Three-Stone Rings
Diamond, Blue Sapphire, 18k Gold
2010s American Three-Stone Rings
Diamond, Emerald, 18k Gold, Platinum
2010s American Three-Stone Rings
Diamond, Emerald, 18k Gold, Platinum
Early 20th Century Art Deco Three-Stone Rings
Diamond, 18k Gold, Platinum
2010s Engagement Rings
Diamond, Gold, 14k Gold, White Gold, Yellow Gold
Mid-20th Century Engagement Rings
Diamond, Yellow Diamond, Gold, 18k Gold, Yellow Gold, Platinum
2010s British More Rings
White Diamond, Platinum
Antique Late 19th Century Victorian Solitaire Rings
Diamond, 18k Gold
21st Century and Contemporary Canadian Contemporary Engagement Rings
White Diamond, Pink Sapphire, 18k Gold, White Gold
Mid-20th Century French Art Deco Engagement Rings
Diamond, Yellow Diamond, 18k Gold
21st Century and Contemporary Unknown Modern More Rings
2010s American Contemporary Engagement Rings
Pink Diamond, 18k Gold
21st Century and Contemporary British Three-Stone Rings
Diamond, Ruby, Gold
Antique Early 1900s Edwardian Three-Stone Rings
Diamond, 18k Gold
Early 20th Century British Late Victorian Cluster Rings
Diamond, 18k Gold
2010s Loose Gemstones
Blue Sapphire
Mid-20th Century Revival Engagement Rings
Diamond, 18k Gold
21st Century and Contemporary Contemporary Fashion Rings
Diamond, Morganite, Rose Gold
Mid-20th Century Engagement Rings
Diamond, Platinum
Mid-20th Century Engagement Rings
Diamond, Platinum
21st Century and Contemporary Contemporary Cocktail Rings
Diamond, Morganite, Rose Gold
Antique Early 1800s Georgian Dangle Earrings
Diamond, Gold, Silver
2010s British Modern Chain Necklaces
Diamond, Platinum
Early 20th Century Art Deco Cocktail Rings
Diamond, Platinum
2010s American Modern Stud Earrings
Diamond, Gold, 18k Gold, White Gold, Yellow Gold
Mid-20th Century Cluster Rings
Diamond, Sapphire, Green Sapphire, 18k Gold
Antique 1880s Victorian Dangle Earrings
Diamond, 18k Gold, Silver
2010s American Modern Three-Stone Rings
Diamond, 18k Gold, White Gold, Yellow Gold, Platinum
Antique 1860s Victorian Brooches
Diamond, Ruby, 18k Gold
21st Century and Contemporary Australian Contemporary Engagement Rings
Diamond, Tourmaline, Gold, 18k Gold, White Gold
2010s American Contemporary Engagement Rings
Diamond, Pink Sapphire, Platinum
21st Century and Contemporary Australian Contemporary Engagement Rings
Diamond, Tourmaline, Gold, 18k Gold, Yellow Gold
2010s British Engagement Rings
Diamond, White Diamond, Yellow Diamond, 18k Gold
Mid-20th Century Edwardian Engagement Rings
Diamond, Emerald, 18k Gold
2010s American Contemporary Engagement Rings
Diamond, 18k Gold
Antique 1880s English Victorian Engagement Rings
Diamond, Sapphire, 18k Gold, Platinum
Antique 1850s Victorian Chain Bracelets
Diamond, 15k Gold
2010s American Contemporary Engagement Rings
White Diamond, Black Diamond, 14k Gold, White Gold
21st Century and Contemporary British Art Deco Cluster Rings
Diamond, White Diamond, Sapphire, Gold, 18k Gold, White Gold
Mid-20th Century Solitaire Rings
Diamond, Brown Diamond, 18k Gold, White Gold
2010s Sri Lankan Three-Stone Rings
Diamond, Sapphire, Platinum
Antique Early 1900s Art Nouveau Cluster Rings
Diamond, Sapphire, 18k Gold, Platinum
Antique Early 1900s Victorian Lever-Back Earrings
Diamond, 18k Gold
2010s Engagement Rings
Diamond, Yellow Diamond, 18k Gold, Platinum
Antique 1880s Victorian Pendant Necklaces
Diamond, Opal, 18k Gold
Mid-20th Century Art Deco Cocktail Rings
Diamond, Emerald, 18k Gold, Platinum
21st Century and Contemporary Burmese Art Deco Three-Stone Rings
Diamond, Ruby, White Diamond, Platinum
2010s American Contemporary Fashion Rings
Diamond, Emerald, 14k Gold
2010s Australian Contemporary Engagement Rings
Diamond, White Diamond, Tourmaline, Platinum
21st Century and Contemporary Hong Kong Classical Roman Engagement Rings
Diamond, 18k Gold
Antique 1870s British Victorian Bridal Rings
Diamond, 18k Gold
Antique 1870s British Victorian Bridal Rings
Diamond, 18k Gold
20th Century Unknown Modern Solitaire Rings
Diamond, Tourmaline, Gold, 18k Gold, Yellow Gold
Antique 1870s British Victorian Bridal Rings
Diamond, 18k Gold
2010s American Contemporary Engagement Rings
Diamond, 18k 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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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.