Emerald Cut Diamond 20 Carat
20th Century Australian Contemporary Band Rings
Blue Sapphire, Sapphire, White Diamond, Diamond, White Gold, 18k Gold, Gold
21st Century and Contemporary Australian Contemporary Pendant Necklaces
Diamond, 18k Gold, White Gold, Platinum
21st Century and Contemporary Australian Contemporary Cluster Rings
Diamond, Aquamarine, 18k Gold, White Gold
2010s American Artist Pendant Necklaces
Emerald, 14k Gold, Yellow Gold
21st Century and Contemporary Italian Contemporary More Necklaces
Diamond, Emerald, Pearl, Sapphire, Yellow Gold, 18k Gold
20th Century Unknown Modern Engagement Rings
Diamond, Yellow Sapphire, Gold, 18k Gold, White Gold
21st Century and Contemporary American Modern Cocktail Rings
Diamond, Pink Sapphire, Tsavorite, 14k Gold, White Gold
Vintage 1980s Unknown Modern Engagement Rings
Diamond, Blue Sapphire, 18k Gold, Yellow Gold
21st Century and Contemporary Unknown Modern Pendant Necklaces
Diamond, Emerald, Gold, 18k Gold, Yellow Gold
2010s American Band Rings
Diamond, Emerald, 14k Gold, Yellow Gold
Mid-20th Century Unknown Modern Pendant Necklaces
Aquamarine, Diamond, 14k Gold, 9k Gold, Yellow Gold, Gold
21st Century and Contemporary Australian Contemporary Pendant Necklaces
Aquamarine, Diamond, Platinum
Vintage 1950s Unknown Art Deco Engagement Rings
Aquamarine, Diamond, Gold, 18k Gold, Yellow Gold
21st Century and Contemporary Unknown Modern Pendant Necklaces
Diamond, Blue Sapphire, Gold, 9k Gold, White Gold
Vintage 1980s Unknown Modern Engagement Rings
Amethyst, Diamond, Gold, 18k Gold, White Gold
21st Century and Contemporary Australian Contemporary Cluster Rings
Aquamarine, Diamond, Platinum
20th Century Unknown Modern Cluster Rings
Emerald, Sapphire, Blue Sapphire, 9k Gold, Silver, Rose Gold
21st Century and Contemporary Unknown Modern Pendant Necklaces
Diamond, Amethyst, Citrine, Emerald, Garnet, Multi-gemstone, Peridot, To...
21st Century and Contemporary Unknown Modern Pendant Necklaces
Diamond, Onyx, 9k Gold, Yellow Gold
21st Century and Contemporary Australian Contemporary Cluster Rings
Diamond, Sapphire, Tourmaline, Gold, 18k Gold, Yellow Gold
21st Century and Contemporary Australian Contemporary Cluster Rings
Diamond, Sapphire, Gold, 18k Gold, White Gold, Yellow Gold
20th Century Unknown Cluster Rings
Diamond, Green Sapphire, Gold, 18k Gold, Yellow Gold
1990s American Contemporary Choker Necklaces
Diamond, 18k Gold
21st Century and Contemporary Unknown Modern Drop Earrings
Diamond, Amethyst, Peridot, Topaz, Gold, 18k Gold, Yellow Gold
1990s Unknown Engagement Rings
Blue Sapphire, Diamond, 18k Gold, White Gold
20th Century Unknown Modern Engagement Rings
Diamond, Sapphire, Blue Sapphire, Gold, White Gold, 18k Gold
20th Century Unknown Modern Cluster Rings
Diamond, Sapphire, Gold, 18k Gold, Yellow Gold
Vintage 1970s French Link Necklaces
Diamond, White Diamond, 18k Gold
Early 2000s American Modern Solitaire Rings
Tourmaline, 14k Gold
20th Century Australian Modern Band Rings
Diamond, Blue Sapphire, Gold, 9k Gold, Rose Gold
20th Century Australian Modern Band Rings
Diamond, Blue Sapphire, Gold, 9k Gold, Rose Gold
2010s Australian Contemporary Cluster Rings
Morganite, 18k Gold, Rose Gold
20th Century Drop Earrings
White Gold
21st Century and Contemporary Australian Contemporary More Necklaces
Diamond, Sapphire, Gold, 18k Gold, Yellow Gold
21st Century and Contemporary Australian Contemporary Cluster Rings
Diamond, Sapphire, Gold, 18k Gold, Yellow Gold
21st Century and Contemporary Australian Contemporary Cluster Rings
Diamond, Blue Sapphire, Sapphire, Spinel, 18k Gold, Gold, Yellow Gold
Mid-20th Century Unknown Modern Band Rings
Diamond, Sapphire, Gold, 18k Gold, White Gold, Yellow Gold
21st Century and Contemporary European Artisan Engagement Rings
Aquamarine, Diamond, 18k Gold, White Gold
Vintage 1960s Unknown Retro Cuff Bracelets
White Diamond, Tourmaline, 18k Gold
21st Century and Contemporary Unknown Modern Cluster Rings
Diamond, Sapphire, Gold, 18k Gold, White Gold
Early 20th Century Unknown Art Deco Cocktail Rings
Diamond, White Diamond, Emerald, Platinum
2010s British Contemporary Cocktail Rings
Diamond, Tanzanite, Platinum
21st Century and Contemporary Australian Contemporary Three-Stone Rings
Spinel, Tourmaline, Gold, 18k Gold, White Gold, Rose Gold
20th Century Australian Contemporary Three-Stone Rings
Spinel, Tourmaline, Gold, 18k Gold, White Gold, Rose Gold
2010s Pakistani Contemporary Cocktail Rings
Diamond, Tourmaline, Indicolite, 18k Gold
20th Century Unknown Engagement Rings
Diamond, Platinum
20th Century Unknown Modern Signet Rings
Diamond, Onyx, Gold, 9k Gold, Yellow Gold
21st Century and Contemporary Australian Contemporary Stud Earrings
Spinel, Gold, 9k Gold, Yellow Gold
21st Century and Contemporary Unknown Contemporary Engagement Rings
Diamond, Platinum, 18k Gold
Vintage 1950s Unknown Cocktail Rings
Aquamarine, Diamond, Platinum
2010s British Contemporary Cocktail Rings
Diamond, Sapphire, Platinum
21st Century and Contemporary American Contemporary Modern Bracelets
Diamond, Sapphire, Platinum
20th Century Engagement Rings
Diamond, Platinum
2010s American Contemporary Cocktail Rings
White Diamond, Rubelite, Pink Sapphire, 18k Gold
Platinum
American Brooches
2010s American Art Deco Cocktail Rings
10k Gold
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Emerald Cut Diamond 20 Carat For Sale on 1stDibs
How Much is a Emerald Cut Diamond 20 Carat?
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.