2 Carat Cushion Cut Diamond
2010s American Pendant Necklaces
Diamond, Tsavorite, 14k Gold, White Gold
2010s Thai Modern Stud Earrings
Diamond, Ruby, 18k Gold, White Gold
Vintage 1930s Unknown Art Deco Cocktail Rings
Diamond, Yellow Sapphire, White Gold
2010s European Contemporary Dangle Earrings
Diamond, Peridot, Gold, 18k Gold
21st Century and Contemporary American Contemporary Pendant Necklaces
Diamond, Natural Pearl, Topaz, Pearl, Tourmaline, 14k Gold, Yellow Gold
Vintage 1950s Engagement Rings
Diamond, Sapphire, Blue Sapphire, Platinum
Antique 1880s Unknown Victorian Drop Necklaces
Diamond, 15k Gold, Yellow Gold, Platinum
21st Century and Contemporary American Artisan Engagement Rings
Diamond, Tanzanite, White Diamond, White Gold, Gold, 18k Gold, Yellow Gold
2010s American Modern Clip-on Earrings
Amethyst, White Diamond, 18k Gold
21st Century and Contemporary Cufflinks
Diamond, Gold, 18k Gold, Yellow Gold
2010s Unknown Modern Cocktail Rings
Aquamarine, Diamond, Gold, 18k Gold, White Gold
20th Century Dangle Earrings
Diamond, Ruby, 18k Gold, Yellow Gold
20th Century Link Bracelets
Diamond, Sapphire, Tourmaline, Platinum
2010s American Solitaire Rings
Diamond, Ruby, 18k Gold, Yellow Gold
21st Century and Contemporary Contemporary Stud Earrings
Diamond, White Diamond, Blue Sapphire, Gold, 18k Gold, White Gold
21st Century and Contemporary Contemporary Engagement Rings
Diamond, White Diamond, Yellow Diamond, Gold, 18k Gold, White Gold, Yell...
2010s Dutch Modern Cocktail Rings
Amethyst, Diamond, 18k Gold
21st Century and Contemporary Art Deco Engagement Rings
Diamond, Onyx, Blue Sapphire, Tsavorite, 18k Gold, White Gold
21st Century and Contemporary Contemporary Engagement Rings
Diamond, White Diamond, Yellow Diamond, Gold, 18k Gold, White Gold, Yell...
Late 20th Century Engagement Rings
Diamond, Spinel, Platinum
Early 20th Century Unknown Art Deco Dangle Earrings
Diamond, Jade, Pearl, Platinum
2010s Thai Modernist Lever-Back Earrings
Diamond, Ruby, 18k Gold, White Gold
21st Century and Contemporary Engagement Rings
Yellow Diamond, 18k Gold, Yellow Gold, Platinum
2010s Thai Modern Stud Earrings
Diamond, Ruby, 18k Gold, White Gold
Antique 1890s Victorian Band Rings
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
21st Century and Contemporary American Artisan Band Rings
Rhodolite, Garnet, Diamond, Yellow Gold, 18k Gold, Gold
2010s Burmese Contemporary Engagement Rings
Diamond, Pink Sapphire, Platinum
21st Century and Contemporary American Contemporary Dome Rings
White Diamond, Yellow Diamond, Diamond, Yellow Gold, 18k Gold, Gold
21st Century and Contemporary North American Art Deco Cocktail Rings
Aquamarine, Diamond, 18k Gold, White Gold
2010s Thai Aesthetic Movement Dangle Earrings
Diamond, Ruby, 18k Gold, White Gold
2010s American Contemporary Cocktail Rings
Diamond, Ruby, Platinum
21st Century and Contemporary Contemporary Drop Earrings
Diamond, Ruby, 18k Gold, White Gold
2010s American Solitaire Rings
Diamond, Blue Sapphire, 14k Gold, White Gold
21st Century and Contemporary American Art Deco Engagement Rings
Diamond, Blue Sapphire, Sapphire, 18k Gold, Yellow Gold, Platinum
21st Century and Contemporary Hong Kong Retro Stud Earrings
Diamond, Yellow Diamond, Emerald, 18k Gold, Yellow Gold
21st Century and Contemporary Contemporary Cocktail Rings
Diamond, White Diamond, Yellow Diamond, Gold, 18k Gold, White Gold, Yell...
21st Century and Contemporary American Modern Stud Earrings
Diamond, Tanzanite, White Gold, 18k Gold, Gold
2010s American Solitaire Rings
Diamond, Yellow Diamond, Brown Diamond, 18k Gold, Yellow Gold
21st Century and Contemporary American Contemporary Dome Rings
White Diamond, Yellow Diamond, Diamond, Yellow Gold, 18k Gold, Gold
2010s Dangle Earrings
Diamond, Ruby, Gold, 18k Gold, White Gold
20th Century Engagement Rings
Diamond, Sapphire, 18k Gold
2010s American Solitaire Rings
Diamond, Brown Diamond, 14k Gold, White Gold
21st Century and Contemporary Contemporary Cocktail Rings
Diamond, White Diamond, Yellow Diamond, Brown Diamond, Gold, 18k Gold, W...
2010s American Cocktail Rings
Diamond, Ruby, 18k Gold, White Gold
Early 2000s American Contemporary Engagement Rings
Diamond, White Diamond, Sapphire, Blue Sapphire, 18k Gold, White Gold
Late 20th Century Brooches
Diamond, Emerald, Pearl, Ruby, 22k Gold
20th Century Chinese Modern Stud Earrings
Diamond, Yellow Diamond, Gold, White Gold, Yellow Gold, 14k Gold
21st Century and Contemporary American Modern Dangle Earrings
Diamond, Sapphire, 18k Gold, White Gold, Gold
21st Century and Contemporary Contemporary Three-Stone Rings
Diamond, Pink Sapphire, Gold, 18k Gold, Yellow Gold, Platinum
2010s American Solitaire Rings
Diamond, Ruby, 18k Gold, Yellow Gold
Early 20th Century Bangles
Blue Sapphire, Diamond, Sapphire, 14k Gold, White Gold, Yellow Gold, Gold
2010s American Dangle Earrings
Diamond, Ruby, 14k Gold, White Gold
21st Century and Contemporary Clip-on Earrings
Diamond, White Diamond, Emerald, 18k Gold, Platinum
2010s Bangles
Diamond, Sapphire, 18k Gold, White Gold
Vintage 1930s Cluster Rings
Diamond, Sapphire, 18k Gold, White Gold
1990s Clip-on Earrings
Diamond, Quartz, Gold, 14k Gold, White Gold, Yellow Gold
2010s British Modern Engagement Rings
Diamond, White Diamond, Brown Diamond, Gold, 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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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.