4 Carat Square Emerald Cut Diamond
21st Century and Contemporary Thai Contemporary Cocktail Rings
Diamond, Sapphire, 18k Gold, White Gold
20th Century Art Deco Cocktail Rings
Diamond, Tourmaline, Platinum
Vintage 1940s Unknown Retro Cuff Bracelets
Blue Sapphire, Emerald, Tourmaline, 18k Gold
Vintage 1940s American Art Deco Cocktail Rings
Aquamarine, Diamond, Platinum
21st Century and Contemporary British Contemporary Cocktail Rings
Diamond, Emerald, Ruby, Sapphire, Tourmaline, 18k Gold
21st Century and Contemporary Unknown Cocktail Rings
Amethyst, Diamond, 14k Gold
Vintage 1950s Clip-on Earrings
Aquamarine, Diamond, 18k Gold
Early 2000s British Modern Engagement Rings
Diamond, Platinum
Vintage 1950s Engagement Rings
Diamond, Emerald, Platinum
Vintage 1950s Wrist Watches
Diamond, 18k Gold, Yellow Gold, Platinum
20th Century Unknown Modern Band Rings
Diamond, Emerald, White Diamond, Platinum
2010s British Art Deco Cluster Rings
Diamond, White Diamond, Emerald, Gold, 18k Gold, White Gold, Yellow Gold
2010s French Contemporary Bridal Rings
Diamond, Emerald, 18k Gold, White Gold
21st Century and Contemporary American Engagement Rings
Diamond, Platinum
21st Century and Contemporary Australian Contemporary Engagement Rings
Diamond, Spinel, Pink Diamond, Gold, 18k Gold, White Gold, Rose Gold
Late 20th Century More Rings
Diamond, White Diamond, Emerald, Platinum
Antique 19th Century British Victorian Cluster Rings
Diamond, Emerald, 18k Gold
21st Century and Contemporary British Art Deco Cluster Rings
Diamond, 14k Gold
20th Century Unknown Modern Cluster Rings
Diamond, White Diamond, Emerald, Gold, 18k Gold, White Gold
Vintage 1980s Unknown Contemporary Fashion Rings
Diamond, Emerald, 14k Gold
Late 20th Century Clip-on Earrings
Diamond, Emerald, White Diamond, 18k Gold, Gold, Yellow Gold
2010s American Engagement Rings
White Diamond, Platinum
21st Century and Contemporary American Art Deco Clip-on Earrings
Emerald, White Diamond, 18k Gold, White Gold
Early 20th Century Unknown Art Deco Tennis Bracelets
Diamond, Emerald, Platinum
Early 20th Century American Art Deco More Bracelets
Diamond, Emerald, Platinum
Vintage 1930s American Art Deco Tennis Bracelets
Diamond, Emerald, Platinum
Vintage 1950s Unknown Art Deco Engagement Rings
Aquamarine, Diamond, Gold, 18k Gold, Yellow Gold
French Cluster Rings
Diamond
20th Century Edwardian Cluster Rings
Vintage 1920s Unknown Art Deco Engagement Rings
Diamond, Blue Sapphire, Platinum
Early 20th Century Art Deco Engagement Rings
Diamond, Emerald, Platinum
2010s Contemporary Engagement Rings
Diamond, 18k Gold
20th Century Unknown Modern Engagement Rings
Diamond, Sapphire, Blue Sapphire, Gold, White Gold, 18k Gold
Vintage 1950s Unknown Modern Engagement Rings
Diamond, Platinum
20th Century Edwardian Engagement Rings
Late 20th Century Dangle Earrings
Diamond, White Diamond, Emerald, Ruby, Sapphire, Blue Sapphire, Gold, 18...
21st Century and Contemporary Australian Contemporary Three-Stone Rings
Spinel, Tourmaline, Gold, 18k Gold, White Gold, Rose Gold
20th Century Unknown Engagement Rings
Diamond, Platinum
Early 20th Century Art Deco Cocktail Rings
Diamond, Ruby, Platinum
Unknown Engagement Rings
2010s British Art Deco Cocktail Rings
Diamond, Emerald, 18k Gold
Vintage 1920s American Art Deco Tennis Bracelets
Diamond, Emerald, Platinum
Vintage 1920s Unknown Art Deco Engagement Rings
Diamond, Emerald, Platinum
Vintage 1920s Art Deco Cluster Rings
Diamond, Emerald, 18k Gold, Platinum
Vintage 1980s Italian Cocktail Rings
Diamond, Emerald, 18k Gold
Vintage 1920s British Art Deco Fashion Rings
Diamond, Emerald, 18k Gold, White Gold, Platinum
21st Century and Contemporary Contemporary Cluster Rings
Diamond, Aquamarine, Gold, 18k Gold, White Gold
Antique 1880s Victorian Engagement Rings
Diamond, Emerald, 18k Gold
1990s Unknown Modern Cocktail Rings
Diamond, Emerald, 18k Gold
Antique 19th Century Engagement Rings
Diamond, Emerald, Gold
2010s American Modern Cocktail Rings
Diamond, Morganite, 14k Gold, Rose Gold
21st Century and Contemporary Unknown Art Deco Cluster Rings
Diamond, Emerald, Platinum
21st Century and Contemporary Australian Contemporary Cluster Rings
Diamond, Tourmaline, Ruby, 18k Gold, Yellow Gold
21st Century and Contemporary American Modern Link Bracelets
Sterling Silver
Vintage 1960s Contemporary Engagement Rings
Diamond, Sapphire, Platinum
Mid-20th Century British Art Deco Engagement Rings
Diamond, Sapphire, White Gold, 18k Gold
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4 Carat Square Emerald Cut Diamond For Sale on 1stDibs
How Much is a 4 Carat Square Emerald 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.