4 Carat Square Emerald Cut Diamond
2010s American Modern Fashion Rings
14k Gold, Rose Gold, White Gold, Yellow Gold, Platinum
21st Century and Contemporary Unknown Stud Earrings
Diamond, 14k Gold, White Gold
21st Century and Contemporary Chain Necklaces
18k Gold, Yellow Gold
Antique 1890s Late Victorian Brooches
Diamond, Emerald, Ruby, Yellow Gold, Silver
2010s American Modern Engagement Rings
Diamond, White Diamond, Emerald, 18k Gold, Yellow Gold, Platinum
Early 2000s American Modern Engagement Rings
Diamond, White Diamond, Brown Diamond, 14k Gold, Rose Gold
21st Century and Contemporary Indian Contemporary Cocktail Rings
Diamond, Topaz, Blue Topaz, 18k Gold, Yellow Gold
21st Century and Contemporary Engagement Rings
Diamond, White Diamond, Platinum
1990s Art Deco Solitaire Rings
Diamond, White Diamond, Emerald, Platinum
Vintage 1950s Engagement Rings
Diamond, Emerald, 18k Gold, White Gold
21st Century and Contemporary American Contemporary Engagement Rings
Diamond, Sapphire, Platinum
21st Century and Contemporary Australian Contemporary Cocktail Rings
Diamond, White Diamond, Aquamarine, Platinum
2010s Australian Art Deco Engagement Rings
Diamond, White Diamond, Emerald, Platinum
20th Century Australian Contemporary Wedding Rings
Diamond, White Diamond, Emerald, Gold, Yellow Gold, 18k Gold
21st Century and Contemporary American Contemporary Solitaire Rings
Aquamarine, Diamond, Spinel, 14k Gold, White Gold
2010s French Modern Engagement Rings
Diamond, Emerald, 18k Gold, Yellow Gold
Late 20th Century Unknown Cocktail Rings
Diamond, White Diamond, Emerald, Platinum
21st Century and Contemporary American Romantic Wedding Rings
Diamond, 18k Gold
21st Century and Contemporary Fashion Rings
Diamond, Emerald, 18k Gold
2010s Australian Art Deco Fashion Rings
Diamond, Emerald, 18k Gold
21st Century and Contemporary American Art Deco Engagement Rings
Diamond, Emerald, 18k Gold, White Gold
Early 2000s American More Rings
Diamond, Sapphire, 18k Gold, Platinum, Yellow Gold
Vintage 1970s French Contemporary Engagement Rings
Diamond, Emerald, 18k Gold, White Gold
Vintage 1950s Fashion Rings
Diamond, Emerald, Platinum
Vintage 1980s American Cocktail Rings
Diamond, Emerald, 18k Gold
Early 20th Century American Art Deco Retro Bracelets
Emerald, White Diamond, Platinum
Vintage 1920s Art Deco Brooches
Diamond, Platinum
American Brooches
Diamond
Vintage 1980s American Artist Cuff Bracelets
Diamond, Emerald, Ruby, Sapphire, 18k Gold
21st Century and Contemporary American Modern Tennis Bracelets
Diamond, 18k Gold, White Gold
21st Century and Contemporary American Art Deco Engagement Rings
Emerald, Opal, 18k Gold, Yellow Gold, Gold
2010s Asian Contemporary Fashion Rings
Opal, Topaz, Sterling Silver
2010s American Engagement Rings
Diamond, Platinum
20th Century Engagement Rings
White Gold
Vintage 1960s Cocktail Rings
Diamond, Tourmaline, Ruby, 14k Gold, White Gold
Late 20th Century American Retro Chain Necklaces
Diamond, 14k Gold
21st Century and Contemporary Australian Contemporary Engagement Rings
Diamond, Indicolite, Gold, 18k Gold, White Gold
2010s Australian Artisan Cluster Rings
Tourmaline, 18k Gold
2010s Unknown Modern Engagement Rings
Diamond, Ruby, Platinum
21st Century and Contemporary British Contemporary Cufflinks
Diamond, Ruby, 18k Gold, Yellow Gold
21st Century and Contemporary Australian Three-Stone Rings
Diamond, Pink Diamond, Rose Gold, White Gold
2010s Unknown Art Deco Cocktail Rings
Diamond, Sapphire, Tanzanite, 18k Gold, Yellow Gold
Late 20th Century Greek Drop Earrings
Diamond, Emerald, Multi-gemstone, Ruby, Blue Sapphire, 18k Gold, Yellow ...
21st Century and Contemporary Australian Contemporary Engagement Rings
Diamond, Yellow Diamond, Pink Diamond, 18k Gold, Platinum
21st Century and Contemporary Unknown Contemporary Cocktail Rings
Tourmaline, Diamond, White Gold
Vintage 1980s Drop Earrings
Amethyst, Diamond, 14k Gold, White Gold, Platinum
2010s Colombian Contemporary Pendant Necklaces
Diamond, White Gold
2010s Colombian Contemporary Pendant Necklaces
Diamond, White Gold
2010s Colombian Contemporary Pendant Necklaces
Diamond, White Gold
Vintage 1980s Contemporary Cluster Rings
Diamond, Emerald, 18k Gold
2010s Band Rings
Diamond, Platinum
Vintage 1920s Art Deco Engagement Rings
Diamond, Platinum
2010s American Engagement Rings
Diamond, Emerald, Platinum
Vintage 1980s Band Rings
Diamond, Emerald, Ruby, Sapphire, 18k Gold, Yellow Gold
Vintage 1940s Retro Engagement Rings
Diamond, Platinum
21st Century and Contemporary American Modern Dangle Earrings
Diamond, Emerald, 18k Gold, Yellow Gold, Platinum
21st Century and Contemporary American Modern Dangle Earrings
Diamond, Emerald, 18k Gold, Yellow Gold, Platinum
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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.