12 Carat Emerald
Late 20th Century American Modern Cocktail Rings
Diamond, Emerald, 18k Gold, Yellow Gold
2010s Indian Contemporary Stud Earrings
Diamond, Emerald, 18k Gold
Late 20th Century Cufflinks
Emerald, Gold, 18k Gold, Yellow Gold
21st Century and Contemporary Modern Wedding Rings
Diamond, 18k Gold, White Gold
20th Century More Earrings
Diamond, Emerald, 18k Gold
Early 2000s Engagement Rings
Diamond, Emerald, Gold, 18k Gold
2010s Unknown Modern Bridal Rings
White Diamond, Diamond, Platinum
21st Century and Contemporary Solitaire Rings
Diamond, Yellow Gold
Vintage 1910s Edwardian More Earrings
Diamond, Emerald, Gold
2010s Italian Modern Engagement Rings
Diamond, White Diamond, Yellow Diamond, Emerald
21st Century and Contemporary Thai Modern Pendant Necklaces
Diamond, Emerald, 18k Gold
2010s Italian Contemporary Cocktail Rings
Diamond, Emerald, 18k Gold, White Gold
21st Century and Contemporary Unknown Contemporary Engagement Rings
Diamond, Emerald, Opal, Gold, 18k Gold
2010s American Engagement Rings
Diamond, Emerald, Platinum
Vintage 1960s Italian Brooches
Emerald, Garnet, Ruby, 18k Gold, White Gold, Yellow Gold
2010s Unknown Modern Three-Stone Rings
Diamond, Emerald, Platinum
21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones
Amethyst
2010s Tennis Bracelets
Diamond, Emerald, 14k Gold, Yellow Gold
2010s Tennis Bracelets
Diamond, Emerald, Yellow Gold, 14k Gold
2010s American Pendant Necklaces
Diamond, Emerald, Platinum
2010s Unknown Contemporary Three-Stone Rings
Emerald, Gold, 18k Gold, White Gold
1990s Stud Earrings
Diamond, Emerald, 14k Gold
2010s Italian Modern Pendant Necklaces
Diamond, White Diamond, Emerald, Platinum
2010s Tennis Bracelets
Diamond, Emerald, Gold, 14k Gold, White Gold
Antique 18th Century German Baroque Cocktail Rings
Diamond, Emerald, 14k Gold
Late 20th Century Modern Modern Bracelets
Emerald, Blue Sapphire, Sapphire, Ruby, White Diamond, Diamond, White Go...
21st Century and Contemporary Contemporary Band Rings
Diamond, Platinum
21st Century and Contemporary Indian Modern Pendant Necklaces
Diamond, Emerald, 18k Gold, White Gold
Vintage 1970s Unknown Retro Stud Earrings
Topaz, Gold
21st Century and Contemporary Modern Drop Earrings
Diamond, Emerald, Gold, 18k Gold, White Gold
20th Century American Modern Tennis Bracelets
Diamond, Platinum
21st Century and Contemporary Swiss Modern Brooches
Diamond, Emerald, Gold, 18k Gold, White Gold
2010s American Engagement Rings
Diamond, Emerald, Platinum
Early 20th Century Cocktail Rings
Diamond, Emerald, 18k Gold
21st Century and Contemporary French Art Deco Dangle Earrings
Iolite, Gold, 18k Gold, White Gold
Early 20th Century Cocktail Rings
Diamond, Emerald, 14k Gold
Early 2000s Drop Necklaces
Diamond, Emerald, 14k Gold
2010s Italian Cocktail Rings
Diamond, White Diamond, Platinum
2010s Stud Earrings
Diamond, Emerald, 14k Gold, White Gold
Early 2000s Solitaire Rings
Diamond, Emerald, 14k Gold, Yellow Gold
Early 2000s Pendant Necklaces
Amethyst, 14k Gold, Yellow Gold
21st Century and Contemporary Contemporary Cocktail Rings
Amethyst, Peridot, Silver, Sterling Silver
2010s Stud Earrings
Diamond, Emerald, 14k Gold, White Gold
21st Century and Contemporary Contemporary Cocktail Rings
Amethyst, Peridot, Silver, Sterling Silver
21st Century and Contemporary Contemporary Cocktail Rings
Amethyst, Peridot, Silver, Sterling Silver
21st Century and Contemporary Contemporary Cocktail Rings
Amethyst, Peridot, Silver, Sterling Silver
21st Century and Contemporary French Art Deco Dangle Earrings
Onyx, Gold, 18k Gold, Yellow Gold
2010s Stud Earrings
Diamond, Emerald, 14k Gold, White Gold
21st Century and Contemporary Contemporary Cocktail Rings
Amethyst, Peridot, Silver, Sterling Silver
21st Century and Contemporary Contemporary Cocktail Rings
Amethyst, Peridot, Silver, Sterling Silver
2010s Cocktail Rings
Diamond, Emerald, 14k Gold, Yellow Gold
2010s Stud Earrings
Diamond, Ruby, 18k Gold, Yellow Gold
21st Century and Contemporary Drop Earrings
Emerald
20th Century British Modern Cocktail Rings
White Diamond, Emerald, Yellow Gold, 18k Gold
2010s Balinese Byzantine Solitaire Rings
Aquamarine, 22k Gold, Yellow Gold
21st Century and Contemporary American Contemporary Cocktail Rings
Diamond, Citrine, Gold, Yellow Gold, 14k Gold
2010s European Art Deco Chain Bracelets
Diamond, Sapphire, Blue Sapphire, Platinum
2010s Modern Cocktail Rings
Diamond, Emerald, White Gold
21st Century and Contemporary Art Deco Link Bracelets
Diamond, Ruby, Gold, 18k Gold, White Gold
2010s Contemporary Modern Bracelets
Diamond, Emerald, 18k Gold, White Gold
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12 Carat Emerald For Sale on 1stDibs
How Much is a 12 Carat Emerald?
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.
- How big is a 12 carat diamond?1 Answer1stDibs ExpertFebruary 22, 2021The size of a 12 carat diamond is dependent on diamond cut. A 12 carat round diamond is roughly 15 mm in size.
- How big is a 2 carat emerald?1 Answer1stDibs ExpertFebruary 22, 2021A two carat emerald is 8.5 x 6.0mm. Because emeralds are quite strong they can be great for everyday wear.