4 Carat Square Emerald Cut Diamond
21st Century and Contemporary Japanese Modern Cocktail Rings
Diamond, Ruby, 18k Gold, Yellow Gold, Platinum
Vintage 1930s American Art Deco Cocktail Rings
Diamond, Emerald, Platinum
Vintage 1940s Cocktail Rings
Diamond, Platinum
Antique 1830s Unknown Art Deco Brooches
Aquamarine, Diamond, Ruby, Platinum
Mid-20th Century Retro Retro Bracelets
Diamond, Blue Sapphire, Platinum
20th Century More Rings
Emerald, Ruby, Sapphire, Yellow Gold
Mid-20th Century Unknown Modern Stud Earrings
Garnet, Ruby, Sapphire, Blue Sapphire, Yellow Sapphire, Topaz, Tsavorite...
21st Century and Contemporary Brooches
Agate, Diamond, Emerald, 18k Gold, White Gold
21st Century and Contemporary American More Rings
Brown Diamond, 18k Gold, Yellow Gold
1990s Unknown More Bracelets
Diamond, Emerald, Ruby, Blue Sapphire, 18k Gold, Yellow Gold
Vintage 1920s Unknown Art Deco Cocktail Rings
Aquamarine, Diamond, Blue Sapphire, Platinum
2010s English Cluster Rings
Aquamarine, Diamond, 18k Gold, White Gold, Yellow Gold
Vintage 1920s American Art Deco Brooches
Diamond, White Diamond, Ruby, Platinum
Antique 1870s English Etruscan Revival Bangles
Diamond, White Diamond, Emerald, Gold, 15k Gold, Yellow Gold, Enamel
Vintage 1980s Italian Bangles
Emerald, Oriental Pearl, Ruby, Sapphire, 18k Gold
21st Century and Contemporary Thai Art Deco Cocktail Rings
Aquamarine, Diamond, Onyx, 14k Gold, White Gold
Vintage 1930s American Art Deco Cocktail Rings
Diamond, Emerald, Onyx, Platinum
Early 20th Century Unknown Art Deco Engagement Rings
Diamond, Platinum
Vintage 1940s Link Bracelets
Diamond, Ruby, Gold, Platinum
Vintage 1970s Brooches
Diamond, Emerald, Ruby, 18k Gold
Early 20th Century Cocktail Rings
Diamond, Emerald, 18k Gold, White Gold
20th Century Unknown Bangles
Diamond, Emerald, 14k Gold, Yellow Gold
2010s American Engagement Rings
Diamond, Platinum
Vintage 1950s British Modern Band Rings
Diamond, Emerald, Gold
Vintage 1920s British Art Deco Band Rings
Diamond, Emerald, 18k Gold, Gold
21st Century and Contemporary Modern Engagement Rings
Diamond, Emerald, Platinum
21st Century and Contemporary Art Deco Cocktail Rings
Aquamarine, Diamond, Platinum
20th Century Contemporary Lever-Back Earrings
Diamond, Emerald, 18k Gold
Vintage 1910s British Edwardian More Rings
Diamond, Emerald, 18k Gold, Platinum
Early 20th Century Unknown Art Deco Engagement Rings
Emerald, Platinum
Vintage 1970s Swiss Modernist Stud Earrings
Diamond, 18k Gold
21st Century and Contemporary Italian Art Deco Choker Necklaces
Diamond, Emerald, Yellow Gold, 10k Gold
21st Century and Contemporary Unknown Wedding Rings
Diamond, Gold, 18k Gold, Yellow Gold
Vintage 1930s Spanish Art Deco Three-Stone Rings
Diamond, Emerald, Platinum
Vintage 1920s British Art Deco Cluster Rings
Diamond, Emerald, Gold, 18k Gold, Platinum
Late 20th Century Lever-Back Earrings
Diamond, Emerald, Ruby, Sapphire, Blue Sapphire, Gold, 14k Gold, Yellow ...
Vintage 1950s British Modern Band Rings
Diamond, Emerald, Gold
20th Century American Edwardian Band Rings
Diamond, Emerald, 18k Gold, Yellow Gold, Platinum
21st Century and Contemporary Engagement Rings
Diamond, Emerald, 14k Gold, Yellow Gold
1990s American Retro Tennis Bracelets
Diamond, Emerald, 18k Gold, Yellow Gold
Early 20th Century Unknown Art Deco Engagement Rings
Diamond, Sapphire, Emerald, Platinum
Vintage 1960s Unknown Modern Cocktail Rings
Diamond, Emerald, Platinum
21st Century and Contemporary Unknown Contemporary Necklace Enhancers
Diamond, White Diamond, Emerald, Ruby, Sapphire, Blue Sapphire, Gold, 18...
Vintage 1980s Modern Drop Earrings
Diamond, Sapphire, Gold, 14k Gold, Yellow Gold
Vintage 1920s Unknown Art Deco More Rings
Diamond, Emerald, Platinum
1990s Art Deco Dangle Earrings
Diamond, Emerald, Gold, Enamel
Vintage 1940s American Retro Cocktail Rings
Citrine, Ruby, 14k Gold, Rose Gold
Vintage 1970s Engagement Rings
Diamond, Emerald, Platinum
Late 20th Century Unknown Modern Cocktail Rings
Diamond, White Diamond, Topaz, 14k Gold, Yellow Gold
Vintage 1970s Beaded Necklaces
Diamond, Emerald, 18k Gold, Yellow Gold
20th Century Japanese Modern Band Rings
Diamond, Ruby, 18k Gold, Yellow Gold
Mid-20th Century Unknown Modern Cocktail Rings
Diamond, Topaz, 18k Gold, White Gold
1990s British Retro Bangles
Diamond, Emerald, Cultured Pearl, 18k Gold, White Gold
Vintage 1920s Art Deco Cocktail Rings
Diamond, Emerald, Platinum
20th Century Chinese Art Deco Cocktail Rings
Diamond, Emerald, South Sea Pearl, 18k Gold, Yellow Gold
Vintage 1950s Retro Cocktail Rings
Aquamarine, Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum, Gold
Mid-20th Century Unknown Modern Cocktail Rings
Aquamarine, Diamond, 14k Gold, White 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.