4 Carat Square Emerald Cut Diamond
21st Century and Contemporary Unknown Band Rings
Diamond, Emerald, 18k Gold, White Gold
21st Century and Contemporary Chain Bracelets
Diamond, Emerald, White Gold, 14k Gold
Vintage 1920s Art Deco Link Bracelets
Diamond, Emerald, Platinum
Vintage 1980s Italian Choker Necklaces
Diamond, Emerald, 18k Gold
Vintage 1930s Art Deco Drop Necklaces
Diamond, Emerald, Platinum
Vintage 1950s Unknown Retro Fashion Rings
Diamond, Emerald, Gold, 18k Gold, Yellow Gold
20th Century Engagement Rings
Diamond, Emerald, 18k Gold
Vintage 1920s Unknown Art Deco More Bracelets
Emerald, White Diamond, Platinum
21st Century and Contemporary Stud Earrings
Diamond, White Gold, 18k Gold
2010s Japanese Art Deco Engagement Rings
Alexandrite, Diamond, Platinum
Early 20th Century Edwardian Cocktail Rings
Diamond, Emerald, Gold, 14k Gold, Yellow Gold
Vintage 1980s Unknown Modern Cocktail Rings
Diamond, Emerald, 18k Gold
2010s Japanese Art Deco Cluster Rings
Yellow Diamond, Platinum
Early 20th Century American Art Deco Engagement Rings
Diamond, Platinum
Vintage 1970s Contemporary Fashion Rings
Diamond, Emerald, 14k Gold, Yellow Gold
21st Century and Contemporary Pendant Necklaces
Diamond, Emerald, 14k Gold, White Gold
Vintage 1940s Art Deco Cocktail Rings
Diamond, Emerald, Ruby
21st Century and Contemporary Band Rings
Diamond, Emerald, Platinum
Early 20th Century Unknown Art Deco Cocktail Rings
Diamond, White Diamond, Emerald, Platinum
Vintage 1920s Unknown Art Deco More Bracelets
Diamond, Emerald, White Diamond, Platinum
Vintage 1980s Italian Modernist Dangle Earrings
Diamond, White Diamond, Emerald, Ruby, Gold, 18k Gold, Yellow Gold
Vintage 1930s Art Deco Brooches
Diamond, Emerald, Star Sapphire, Platinum
Vintage 1970s French Retro Cluster Rings
Diamond, White Diamond, Emerald, Gold, 18k Gold, White Gold, Yellow Gold
Antique 19th Century Contemporary Engagement Rings
Diamond, Emerald, Blue Sapphire, 18k Gold, White Gold
Vintage 1920s Tennis Bracelets
Diamond, Platinum
21st Century and Contemporary American Bridal Rings
Diamond, Platinum
1990s Contemporary Band Rings
Diamond, White Diamond, Emerald, Gold, 18k Gold, Yellow Gold
Vintage 1980s European Modern Beaded Necklaces
Diamond, Emerald, 18k Gold
Early 2000s Dutch Brooches
Aquamarine, Diamond, Tourmaline, Gold, 18k Gold
Vintage 1910s Art Deco Link Bracelets
Diamond, Emerald, Platinum
Early 2000s American Art Deco Link Bracelets
Diamond, Emerald, 18k Gold, White Gold
Vintage 1970s French Contemporary Cluster Rings
Early 20th Century Unknown Tennis Bracelets
Diamond, Ruby, Platinum
Vintage 1980s Canadian Band Rings
Diamond, Emerald, Yellow Gold
Antique 1880s British Victorian Dome Rings
Diamond, Emerald, 15k Gold
Early 2000s Contemporary Engagement Rings
Diamond, Gold, 18k Gold, White Gold
Vintage 1970s Swiss Modernist Cocktail Rings
Diamond, White Diamond, Emerald, Gold, 18k Gold, White Gold
2010s Israeli Cluster Rings
Diamond, Emerald, 18k Gold, Yellow Gold
Vintage 1970s Engagement Rings
Diamond, Platinum
Mid-20th Century Art Deco Drop Earrings
Aquamarine, Diamond, 18k Gold
Vintage 1930s French Art Deco Cufflinks
Diamond, Emerald, 18k Gold, Platinum
Vintage 1950s Engagement Rings
Diamond, Emerald, Gold, 18k Gold, White Gold
21st Century and Contemporary Drop Earrings
Diamond, Emerald, Ruby, Sapphire, 18k Gold
Vintage 1970s Modern Necklace Enhancers
Diamond, Emerald, White Diamond, Gold, 18k Gold, Yellow Gold
21st Century and Contemporary Thai Art Deco Drop Earrings
Diamond, Emerald, Jade, 9k Gold, Yellow Gold
Vintage 1940s Retro Engagement Rings
Diamond, Ruby, Rose Gold
Early 20th Century German Modern Band Rings
Diamond, White Diamond, Platinum
Vintage 1920s Unknown Art Deco Cocktail Rings
Aquamarine, Diamond, Ruby
20th Century Unknown Modern Pendant Necklaces
Diamond, 18k Gold
Antique 1790s Spanish Baroque Cocktail Rings
Diamond, Emerald, Gold, Yellow Gold, Silver, 18k Gold
21st Century and Contemporary Thai Art Deco Engagement Rings
Diamond, Emerald, Opal, 14k Gold, Yellow Gold
Vintage 1930s Art Deco Wedding Rings
Diamond, Emerald, Platinum
Vintage 1920s Art Deco Engagement Rings
Diamond, Platinum
21st Century and Contemporary American Modern Modern Bracelets
Aquamarine, Platinum
Vintage 1930s Unknown Art Deco More Rings
Diamond, Platinum
Vintage 1930s American Art Deco Engagement Rings
Diamond, Platinum
Vintage 1970s Unknown Cocktail Rings
Diamond, Opal, 18k Gold, White Gold, Yellow 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.