4 Carat Square Emerald Cut Diamond
21st Century and Contemporary American Modern Dangle Earrings
Diamond, Emerald, 18k Gold, Yellow Gold, Platinum
21st Century and Contemporary Cocktail Rings
Diamond, Emerald, White Gold
Vintage 1970s Unknown Cluster Rings
Diamond, Emerald, Platinum
20th Century French Cluster Rings
Diamond, Emerald, Yellow Gold
2010s American Engagement Rings
Diamond, Emerald, Platinum
21st Century and Contemporary Art Deco Engagement Rings
Diamond, Emerald, Platinum
Vintage 1950s British Modern Band Rings
Diamond, Emerald, Gold
Vintage 1910s Victorian Cluster Rings
Diamond, Emerald, 14k Gold, Yellow Gold
Vintage 1920s American Art Deco Engagement Rings
Diamond, Platinum
Early 2000s Engagement Rings
Diamond, Platinum
Early 2000s Contemporary Band Rings
Diamond, White Diamond, Emerald, Gold, 18k Gold, Yellow Gold
Vintage 1960s British Modern Band Rings
Diamond, Emerald, Sapphire, Gold
Vintage 1950s British Modern Band Rings
Diamond, Emerald, White Gold
1990s British Modern Three-Stone Rings
Diamond, Emerald, Gold, 18k Gold, Yellow Gold
2010s American Stud Earrings
Diamond, Platinum
Vintage 1950s Unknown Cocktail Rings
Diamond, Emerald, Platinum
21st Century and Contemporary Unknown Link Bracelets
Diamond, Emerald, 14k Gold, Yellow Gold
Vintage 1930s French Art Deco Cocktail Rings
Diamond, Emerald, Platinum
Vintage 1950s Retro Link Bracelets
Diamond, White Diamond, Emerald, Platinum
1990s American Three-Stone Rings
Diamond, Emerald, Platinum
21st Century and Contemporary Modern Band Rings
Diamond, Emerald, Gold, 18k Gold, Yellow Gold
Vintage 1980s Retro Engagement Rings
Diamond, Emerald, Platinum
Vintage 1980s Contemporary Lever-Back Earrings
Diamond, White Diamond, Emerald, Ruby, Sapphire, Gold, 18k Gold, Yellow ...
21st Century and Contemporary Contemporary Dome Rings
Diamond, Emerald, 18k Gold
2010s French Art Deco Engagement Rings
Diamond, White Diamond, 18k Gold, Gold, White Gold
Late 20th Century Modern Tennis Bracelets
Diamond, Emerald, Gold, 18k Gold
Vintage 1930s Art Deco Cocktail Rings
Diamond, Emerald, Platinum
2010s Indian Modern Modern Bracelets
Diamond, Emerald, 18k Gold, White Gold
1990s British Contemporary Cocktail Rings
Diamond, Emerald, Ruby, Gold, 18k Gold, Yellow Gold
21st Century and Contemporary American Drop Earrings
Diamond, 18k Gold, White Gold
21st Century and Contemporary Anklets
Aquamarine, Diamond, White Diamond, Platinum
Antique Early 1900s Unknown Victorian Cocktail Rings
Diamond, Emerald, 18k Gold, Yellow Gold
Early 2000s Unknown More Earrings
Diamond, Emerald, 18k Gold
Vintage 1910s British Edwardian More Rings
Diamond, Emerald, 18k Gold, Platinum
Vintage 1950s Engagement Rings
Diamond, Emerald, Platinum
Vintage 1920s Art Deco Cocktail Rings
Diamond, White Diamond, Emerald, Platinum
Vintage 1930s Unknown Art Deco Cocktail Rings
Diamond, Emerald, Platinum
2010s American Contemporary Drop Earrings
Diamond, White Diamond, Emerald, Gold, 14k Gold, 18k Gold, White Gold, Y...
Vintage 1920s Art Deco Cocktail Rings
Diamond, White Diamond, Emerald, Platinum
Vintage 1920s Art Deco Cocktail Rings
Diamond, White Diamond, Emerald, Platinum
21st Century and Contemporary Band Rings
Diamond, Emerald, 14k Gold, Yellow Gold
Vintage 1920s British Art Deco Cluster Rings
Diamond, Emerald, 18k Gold, Platinum
21st Century and Contemporary Tennis Bracelets
Diamond, Emerald, Ruby, Sapphire, 18k Gold, Yellow Gold
Vintage 1980s Cocktail Rings
Diamond, Emerald, Gold, 18k Gold, Yellow Gold
Late 20th Century Unknown Art Deco Cocktail Rings
Diamond, Emerald, Platinum
Vintage 1930s American Art Deco Tennis Bracelets
Diamond, Emerald, Platinum
21st Century and Contemporary Engagement Rings
Diamond, Emerald, 14k Gold, Yellow Gold
21st Century and Contemporary Link Bracelets
Diamond, White Diamond, Emerald, 18k Gold, White Gold, Gold
Vintage 1930s Retro Band Rings
Diamond, Emerald, Gold, 18k Gold, Yellow Gold
20th Century Dangle Earrings
Diamond, Emerald, Platinum
21st Century and Contemporary American Contemporary Solitaire Rings
Pink Diamond, White Diamond, Diamond, Rose Gold
2010s British Modern Three-Stone Rings
Diamond, Emerald, Gold, 18k Gold, Yellow Gold
21st Century and Contemporary French Art Deco Engagement Rings
Diamond, Emerald, Yellow Gold, Platinum
Early 20th Century French Art Deco Cocktail Rings
Diamond, Emerald, Onyx, 18k Gold, Yellow Gold
1990s Contemporary Drop Earrings
Diamond, Emerald, 14k Gold, White Gold, Platinum
Antique 1890s Late Victorian Cocktail Rings
Diamond, Emerald, Gold, 18k Gold, Yellow Gold
21st Century and Contemporary Art Deco Tennis Bracelets
Diamond, Emerald, Platinum
- 1
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.