1 Carat Cushion Cut Diamond
2010s American Link Bracelets
Diamond, 18k Gold
21st Century and Contemporary American Art Deco Engagement Rings
Diamond, Emerald, Gold, 14k Gold, Yellow Gold
21st Century and Contemporary American Tennis Bracelets
White Diamond, 18k Gold, White Gold
1990s Modern Beaded Necklaces
Amethyst, Diamond, Peridot, Topaz, Tourmaline, Gold, 18k Gold, Yellow Gold
21st Century and Contemporary American Art Deco Wedding Rings
Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, White Gold
2010s American Pendant Necklaces
Diamond, Pink Sapphire, 18k Gold, White Gold, Yellow Gold
Late 20th Century Unknown Tennis Bracelets
Diamond, Yellow Diamond, 18k Gold, Gold, White Gold, Yellow Gold
21st Century and Contemporary American Modernist Cocktail Rings
Diamond, Blue Sapphire, Gold, 18k Gold, White Gold
21st Century and Contemporary American Art Deco Engagement Rings
Diamond, Emerald, Gold, 18k Gold, Yellow Gold
21st Century and Contemporary Cocktail Rings
Diamond, Tourmaline, Gold, 14k Gold, Yellow Gold
21st Century and Contemporary Indian Modern Dangle Earrings
Diamond, White Diamond, Gold Plate, Rose Gold, Sterling Silver, 14k Gold
Vintage 1920s Art Deco Brooches
Diamond, Ruby, Platinum
Vintage 1910s Unknown Pendant Necklaces
Diamond, Onyx, White Gold, Platinum, 14k Gold
21st Century and Contemporary Unknown Engagement Rings
Garnet, Rhodolite, 18k Gold, Rose Gold
2010s Israeli Cluster Rings
Diamond, 18k Gold, Yellow Gold
Late 20th Century Unknown Contemporary Cocktail Rings
Blue Sapphire, Sapphire, White Diamond, Diamond, Yellow Gold, 18k Gold, ...
21st Century and Contemporary European Modern Solitaire Rings
Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, Yellow Gold
Mid-20th Century Unknown Modern Fashion Rings
Ruby, 14k Gold
21st Century and Contemporary American Engagement Rings
Diamond, Ruby, Gold, 18k Gold, Yellow Gold
21st Century and Contemporary American Art Deco Cocktail Rings
Diamond, Emerald, Gold, 14k Gold, Yellow Gold
Early 2000s German Modern Cufflinks
Diamond, Pearl, 18k Gold, Rose Gold
21st Century and Contemporary Hong Kong Contemporary Cocktail Rings
Diamond, White Diamond, Emerald, Gold, 14k Gold, White Gold
21st Century and Contemporary American Art Deco Three-Stone Rings
Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, White Gold
1990s Pendant Necklaces
White Diamond, Quartz, Gold, 18k Gold, White Gold, Yellow Gold
21st Century and Contemporary Unknown Contemporary Cocktail Rings
Blue Topaz, Topaz, Blue Sapphire, Sapphire, White Diamond, Diamond, Whit...
Vintage 1970s French Modernist Engagement Rings
Diamond, Lapis Lazuli, White Diamond, Gold, Yellow Gold, 18k Gold, Platinum
2010s American Contemporary Pendant Necklaces
Citrine, Diamond, Gold, 14k Gold, Yellow Gold
2010s Israeli Cluster Rings
Pink Diamond, 18k Gold, White Gold
Antique Early 1900s Edwardian Engagement Rings
Diamond, Garnet, 18k Gold
2010s Contemporary Engagement Rings
Diamond, White Diamond, 14k Gold, White Gold
21st Century and Contemporary Thai Contemporary Pendant Necklaces
Blue Topaz, Topaz, White Diamond, Diamond, Citrine, Yellow Gold, White G...
2010s British Belle Époque Solitaire Rings
Diamond, Blue Sapphire, Platinum
21st Century and Contemporary Thai Contemporary Pendant Necklaces
Amethyst, Blue Topaz, Topaz, White Diamond, Diamond, Rose Gold, White Go...
2010s British Belle Époque Solitaire Rings
Diamond, Emerald, 18k Gold
Antique 1890s British Victorian Engagement Rings
Diamond, Sapphire, 18k Gold, Yellow Gold
21st Century and Contemporary French Art Deco Cocktail Rings
Diamond, Pink Sapphire, Topaz, Gold, 18k Gold, Rose Gold
Antique Late 19th Century Victorian Brooches
Diamond, Sapphire, Gold
21st Century and Contemporary Thai Contemporary Pendant Necklaces
Quartz, Blue Topaz, Topaz, White Diamond, Diamond, White Gold, Rose Gold...
Vintage 1930s Art Deco Charm Bracelets
Diamond, Garnet, Ruby, Sapphire, Platinum
Antique 1890s English Victorian Wedding Rings
Diamond, Pink Sapphire, Gold
Vintage 1930s British Art Deco Solitaire Rings
Diamond, Platinum
Late 20th Century Swiss Modernist Band Rings
Diamond, White Diamond, 18k Gold, White Gold
Late 20th Century Pendant Necklaces
Diamond, Peridot, 14k Gold, Yellow Gold
21st Century and Contemporary Contemporary Stud Earrings
Diamond, Lapis Lazuli, Yellow Gold, 18k Gold
Antique 1890s Unknown Victorian Three-Stone Rings
Diamond, Platinum
Vintage 1970s Swiss Modernist Band Rings
Diamond, White Diamond, Gold, 18k Gold, White Gold, Yellow Gold
Vintage 1920s British Art Deco Cluster Rings
Diamond, Platinum
Antique Late 19th Century French Art Nouveau Drop Necklaces
Diamond
Vintage 1920s British Art Deco Solitaire Rings
Diamond, Platinum
Antique Early 1900s French Belle Époque Pendant Necklaces
Aquamarine, Diamond, White Diamond, Gold, Platinum, Enamel, 18k Gold, Ye...
2010s Wedding Rings
Ruby
Antique 1820s Unknown Regency Drop Necklaces
Aquamarine, Diamond, 18k Gold, Silver
2010s Unknown Modern Band Rings
Diamond, Tourmaline, 18k Gold, White Gold
2010s Indian Band Rings
Diamond, Pink Sapphire, 18k Gold
Antique 1840s English Early Victorian Engagement Rings
Diamond, 18k Gold
2010s Belgian Artist Pendant Necklaces
Diamond, White Diamond, Tourmaline, Paraiba, Sapphire, Tanzanite, Blue S...
Early 20th Century French Art Deco Cluster Rings
Diamond, Platinum
- 1
- ...
1 Carat Cushion Cut Diamond For Sale on 1stDibs
How Much is a 1 Carat Cushion 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.
- 1stDibs ExpertSeptember 28, 2021Like with most diamond products, the price of a 1-carat princess cut diamond can range dramatically. On 1stDibs, find 1-carat princess cut diamond rings, earrings, necklaces and bracelets starting at $999 to $16,500.
Read More
This Absinthe-Hued Peridot Cocktail Ring Is Positively Intoxicating
Ancient Egyptians referred to the vibrant stone as the “gem of the sun.”
Our Guide to Engagement Ring Settings – And How to Choose One
There are many ways to showcase a diamond, from traditional prongs to a smooth, streamlined bezel. Here’s everything you need to consider.
Nothing Says Summer Heat Like This Ruby-Red Cartier Stunner
The vintage bombé ring is bursting with color and timeless style.
Zircon Rings: Our Guide to a Uniquely Colorful Natural Gemstone
Zircon is a magnificent and underrated natural gemstone that has been worn and adored for centuries.
[Survey] Two-Thirds of Jewelry Gift Recipients Don’t Want to Be Surprised
Givers of fine gems enjoy surprise more than receivers, and women more than men. Find out what else our survey of 3,000 Americans revealed.
Colorful Gemstones Are a Brilliant Choice for Engagement Rings
If diamonds don’t seem right, what about a magnificent sapphire, ruby or emerald?
Our Guide to Fancy-Colored Diamond Engagement Rings
Accounting for just 1 percent of all diamonds, these marvels of nature are exceedingly rare and gorgeously complex.
Our Guide to Victorian, Edwardian and Art Deco Engagement Rings
Learn about these antique jewelry styles, then choose a design that speaks to you.








