Cushion Cut Diamond 8 Carat
2010s American Fashion Rings
Diamond, Topaz, Rose Gold
Antique Late 19th Century French Napoleon III Pendant Necklaces
Diamond, Gold, 18k Gold, Yellow Gold
Vintage 1950s French Clip-on Earrings
Diamond, 18k Gold, Yellow Gold
Vintage 1950s Retro Clip-on Earrings
Diamond, Jade, 18k Gold
Antique Early 1900s Edwardian Fashion Rings
Diamond, Natural Pearl, Sapphire, 18k Gold, Rose Gold
Vintage 1910s Unknown Edwardian Lever-Back Earrings
Diamond, Sapphire, Gold, 18k Gold, Yellow Gold, Platinum
Vintage 1910s American Brooches
Aquamarine, Diamond, 14k Gold, Yellow Gold, Platinum
Antique Late 19th Century French Napoleon III Engagement Rings
Diamond, White Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, Rose Gold
Vintage 1980s Fashion Rings
Diamond, Sterling Silver
Vintage 1930s Art Deco Engagement Rings
Diamond, Sapphire, Platinum
21st Century and Contemporary Unknown Modern Chain Necklaces
Vintage 1940s American Retro Wrist Watches
Diamond, Tourmaline, Gold, Platinum
Vintage 1930s Art Deco Engagement Rings
Diamond, Yellow Sapphire, Platinum
Antique 1870s Victorian Drop Earrings
Diamond, Ruby, Gold, 14k Gold, Rose Gold, Yellow Gold
Vintage 1950s Clip-on Earrings
Diamond, Emerald, Pearl, Ruby, Sapphire, Platinum
Antique Late 19th Century Russian Victorian Cluster Rings
Emerald
20th Century Russian Edwardian Engagement Rings
Mid-20th Century Retro Bangles
Sapphire, 14k Gold, Yellow Gold
Russian Bangles
20th Century European Edwardian Drop Necklaces
21st Century and Contemporary American Contemporary More Bracelets
Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, 18k Gold,...
Antique Early 1900s Art Nouveau Brooches
Diamond, Ruby, Tourmaline, Gold, 14k Gold, Yellow Gold
21st Century and Contemporary American Contemporary Cocktail Rings
Opal, 14k Gold, White Gold
21st Century and Contemporary Art Deco Engagement Rings
Emerald, Sapphire, Platinum
2010s German Solitaire Rings
Tourmaline, 18k Gold, Rose Gold
2010s Thai Contemporary Fashion Rings
Zircon, Blue Zircon, Sterling Silver
Vintage 1980s American Cocktail Rings
White Diamond, Yellow Sapphire, 18k Gold, Yellow Gold, Platinum
Vintage 1960s French Retro Solitaire Rings
Garnet, Gold, 18k Gold, Yellow Gold
Vintage 1980s Cocktail Rings
Peridot, 18k Gold, Yellow Gold
2010s Thai Contemporary Three-Stone Rings
Zircon, Blue Zircon, Silver, Sterling Silver
21st Century and Contemporary Unknown Cocktail Rings
Diamond, Tourmaline, Platinum
Antique 1890s British Victorian Fashion Rings
Diamond, Opal, 18k Gold
Antique Early 19th Century Italian Georgian Signet Rings
Agate, Diamond, 18k Gold, Sterling Silver
Antique Early 1900s English Bridal Rings
Ruby, 18k Gold
1990s Contemporary Solitaire Rings
Amethyst, 14k Gold, Yellow Gold
21st Century and Contemporary Engagement Rings
Diamond, Blue Sapphire
2010s Modern Lever-Back Earrings
Diamond, Tanzanite, Platinum
2010s Italian Modern Solitaire Rings
White Diamond, Emerald, 14k Gold, White Gold
21st Century and Contemporary Art Deco Engagement Rings
Diamond, Sapphire, Blue Sapphire, Platinum
21st Century and Contemporary Contemporary Cocktail Rings
Diamond, White Diamond, Tanzanite, 18k Gold, White Gold
21st Century and Contemporary American Modern Cocktail Rings
Amethyst, Diamond, Sapphire, 14k Gold, Rose Gold
21st Century and Contemporary Unknown Art Deco Cocktail Rings
Sapphire, Diamond, Aquamarine, Sterling Silver, Silver
2010s American Solitaire Rings
Diamond, Brown Diamond, 14k Gold, White Gold
2010s Solitaire Rings
Diamond, Ruby, 14k Gold, White Gold
Antique Late 19th Century Victorian More Rings
Diamond
21st Century and Contemporary American Contemporary Cocktail Rings
Amethyst, Diamond, Garnet, 14k Gold, Rose Gold
Vintage 1980s Unknown Engagement Rings
Diamond, 18k Gold, White Gold, Yellow Gold
20th Century Art Deco Bridal Rings
Diamond, Morganite, 10k Gold, Rose Gold
21st Century and Contemporary American Modern Drop Earrings
Diamond, Sapphire, Tourmaline, 18k Gold, White Gold
21st Century and Contemporary American Modern Cocktail Rings
Diamond, Topaz, Sapphire, Blue Sapphire, 14k Gold, Yellow Gold, Gold
Antique Late 19th Century Victorian Three-Stone Rings
Diamond, Platinum
2010s Greek Byzantine Cocktail Rings
Diamond, White Diamond, Tanzanite, Gold, 18k Gold, Yellow Gold
2010s American Contemporary Drop Earrings
Diamond, 18k Gold, Gold
21st Century and Contemporary Unknown Contemporary Cocktail Rings
Diamond, Yellow Sapphire, Gold, 14k Gold, Yellow Gold
2010s Pendant Necklaces
Diamond, Ruby, 14k Gold, Yellow Gold
2010s American Cluster Rings
Blue Sapphire, Tanzanite, 14k Gold, Yellow Gold
Vintage 1930s Unknown Art Deco Cocktail Rings
Sapphire, Platinum
- 1
- ...
Cushion Cut Diamond 8 Carat For Sale on 1stDibs
How Much is a Cushion Cut Diamond 8 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.
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.