Brilliant Cushion Cut 4 Carat
21st Century and Contemporary Thai Contemporary Dangle Earrings
Diamond, White Diamond, Citrine, Quartz, 18k Gold, Yellow Gold
Early 20th Century American Contemporary Pendant Necklaces
Diamond, White Diamond, Pearl, Cultured Pearl, South Sea Pearl, Gold, 18...
21st Century and Contemporary Contemporary Stud Earrings
Diamond, Lapis Lazuli, Yellow Gold, 18k Gold
Late 20th Century Pendant Necklaces
Diamond, Peridot, 14k Gold, Yellow Gold
21st Century and Contemporary Engagement Rings
Diamond, Gold, 18k Gold, White Gold
Late 20th Century Engagement Rings
Diamond, Ruby, 18k Gold, White Gold
Early 2000s Engagement Rings
Diamond, Gold, 14k Gold, White Gold
Vintage 1930s Unknown Retro Cluster Rings
Diamond, Sapphire, Platinum
Vintage 1950s French Retro Cocktail Rings
Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum
21st Century and Contemporary British Modern Engagement Rings
White Diamond, Topaz, Diamond, Blue Topaz, 18k Gold, White Gold, Gold
21st Century and Contemporary Cocktail Rings
Diamond, Morganite, 14k Gold, Rose Gold
2010s American Contemporary Drop Earrings
Citrine, Diamond, Gold, 14k Gold, Yellow Gold
2010s Wedding Rings
Diamond, Gold, 14k Gold, Rose Gold, White Gold, Yellow Gold
21st Century and Contemporary Australian Contemporary Cocktail Rings
Diamond, Morganite, 18k Gold
2010s Sri Lankan Engagement Rings
Diamond, Sapphire, Blue Sapphire, Platinum
21st Century and Contemporary Engagement Rings
Diamond, Platinum
21st Century and Contemporary Unknown Contemporary Engagement Rings
Diamond, Platinum
Early 2000s American Modern Cocktail Rings
Diamond, Sapphire, 18k Gold, Yellow Gold, Platinum, Silver
Vintage 1960s British Modern Cluster Rings
Diamond, Yellow Sapphire, 18k Gold, Yellow Gold
21st Century and Contemporary American Contemporary Engagement Rings
Diamond, 18k Gold, White Gold
2010s British Modern Dangle Earrings
White Diamond, Diamond, 18k Gold, White Gold
Early 2000s American Modern Cocktail Rings
Diamond, Tanzanite, 18k Gold, Yellow Gold, Platinum
21st Century and Contemporary Australian Art Deco Engagement Rings
Diamond, White Diamond, 18k Gold, White Gold
21st Century and Contemporary Canadian Contemporary Pendant Necklaces
Diamond, White Diamond, 18k Gold, Rose Gold
21st Century and Contemporary British Edwardian Solitaire Rings
Diamond, White Gold
2010s North American Belle Époque Fashion Rings
White Diamond, Sterling Silver
21st Century and Contemporary Australian Contemporary Engagement Rings
Diamond, 18k Gold, White Gold
21st Century and Contemporary Australian Contemporary Engagement Rings
Diamond, Spinel, 18k Gold, White Gold
Early 2000s American Modern Fashion Rings
Diamond, White Diamond, 14k Gold, Rose Gold, White Gold
2010s Sri Lankan Modern Engagement Rings
Diamond, Sapphire, Blue Sapphire, Platinum
2010s American Art Deco Engagement Rings
Diamond, 18k Gold
21st Century and Contemporary British Modern Cluster Rings
Diamond, Tanzanite, Platinum
21st Century and Contemporary Australian Contemporary Engagement Rings
Diamond, Gold, 18k Gold, Yellow Gold
21st Century and Contemporary Canadian Contemporary Engagement Rings
White Diamond, Pink Sapphire, 18k Gold, White Gold
2010s Engagement Rings
18k Gold
21st Century and Contemporary British Modern Three-Stone Rings
Diamond, Morganite, 18k Gold, Rose Gold, White Gold
2010s Israeli Art Deco Fashion Rings
White Diamond, Black Diamond, 14k Gold, Rose Gold
21st Century and Contemporary Australian Contemporary Engagement Rings
Diamond, White Diamond, Yellow Diamond, Gold, 18k Gold, White Gold
21st Century and Contemporary Australian Art Deco Dangle Earrings
Diamond, Spinel, 18k Gold, Yellow Gold
21st Century and Contemporary Unknown Contemporary Cocktail Rings
Diamond, Ruby, Platinum
2010s Sri Lankan Engagement Rings
Diamond, Yellow Diamond, Yellow Sapphire, Sapphire, 18k Gold, Platinum
Vintage 1940s Retro Pendant Necklaces
Citrine, Diamond, Ruby, 18k Gold
Vintage 1920s Art Deco Engagement Rings
Diamond, Onyx, Platinum
21st Century and Contemporary Australian Contemporary Cluster Rings
Diamond, Spinel, Gold, 18k Gold, Yellow Gold
21st Century and Contemporary Unknown Contemporary Engagement Rings
Diamond, Morganite, Gold, 18k Gold, Rose Gold, White Gold
Vintage 1920s Art Deco Cluster Rings
Diamond, Sapphire, Platinum
2010s Unknown Modern Cocktail Rings
Aquamarine, Diamond, Platinum
2010s Italian Bridal Rings
Diamond, Emerald, Platinum
2010s American Contemporary Fashion Rings
Diamond, Emerald, 18k Gold
Vintage 1930s Art Deco Cluster Rings
Diamond, Sapphire, Gold, Platinum
2010s American Contemporary Pendant Necklaces
Diamond, Emerald, Platinum
Vintage 1930s Art Deco Solitaire Rings
Diamond, Yellow Sapphire, 18k Gold, Platinum
2010s Australian Contemporary Engagement Rings
Diamond, White Diamond, Tourmaline, Platinum
21st Century and Contemporary American Modern Cocktail Rings
Diamond, Tourmaline, White Gold, 14k Gold, Yellow Gold
2010s Swiss Contemporary Engagement Rings
Diamond, Sapphire, Platinum
2010s Sri Lankan Engagement Rings
Diamond, Sapphire, Blue Sapphire, Platinum
2010s Engagement Rings
Diamond, Ruby, 18k Gold, White Gold
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Brilliant Cushion Cut 4 Carat For Sale on 1stDibs
How Much is a Brilliant Cushion Cut 4 Carat?
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.