7 Carat Old Mine Cut
Antique Late 19th Century Italian Victorian More Rings
Agate, Diamond, 18k Gold
Vintage 1930s Unknown Art Deco Engagement Rings
Diamond, White Diamond, Platinum
Vintage 1910s Edwardian Solitaire Rings
Diamond, Sapphire, Platinum
Antique 1870s Victorian Brooches
Aquamarine, Diamond, Turquoise, Sterling Silver
Late 20th Century Art Deco Engagement Rings
Diamond, Blue Sapphire, Platinum
Antique Mid-19th Century North American Victorian Cocktail Rings
Gold, Silver
Vintage 1940s American Chain Bracelets
Diamond, Sapphire, 18k Gold
Vintage 1920s Art Deco Dangle Earrings
Diamond, Sapphire, 18k Gold
Antique 1850s Unknown Victorian Drop Necklaces
Diamond, Natural Pearl, 15k Gold, Silver
Antique 1860s British Victorian Bangles
Diamond, White Diamond, Sapphire, Blue Sapphire, 18k Gold, Yellow Gold
Antique Early 1900s French Edwardian Engagement Rings
Diamond, Sapphire, 18k Gold, Platinum
Antique 1860s British Victorian Bangles
Diamond, White Diamond, Sapphire, Blue Sapphire, 18k Gold, Yellow Gold
Antique Early 1900s Edwardian Link Bracelets
Diamond, Topaz, Tourmaline, 18k Gold
Vintage 1950s Retro Cocktail Rings
Diamond, Emerald, Gold, 18k Gold, Yellow Gold, Silver
Vintage 1950s Contemporary Cocktail Rings
Diamond, Opal, 18k Gold
Early 20th Century Russian Edwardian Brooches
Diamond, Pearl, 14k Gold, Silver
Antique Early 1900s Edwardian Cluster Rings
Diamond, Ruby, 18k Gold, Yellow Gold, Platinum
Vintage 1930s Unknown Art Deco Engagement Rings
Diamond, White Diamond, Emerald, Platinum
Vintage 1920s Belgian Edwardian Engagement Rings
Diamond, White Diamond, Ruby, Gold, 18k Gold, Yellow Gold, Platinum
Early 20th Century Art Deco Dangle Earrings
Diamond, Onyx, Platinum
Vintage 1950s Unknown Cocktail Rings
Diamond, Emerald, Platinum
20th Century Cluster Rings
Diamond, Ruby, 14k Gold, Yellow Gold
Vintage 1930s Art Deco Engagement Rings
White Diamond, Yellow Gold
Mid-20th Century Italian More Bracelets
Diamond, 18k Gold, Silver
Vintage 1970s Cocktail Rings
Diamond, Ruby, 18k Gold, Yellow Gold
Vintage 1910s American More Jewelry
Diamond, Emerald, Platinum
Antique Early 1900s Unknown Victorian Brooches
Carnelian, 14k Gold
2010s Australian Modern Engagement Rings
Diamond, Sapphire, 18k Gold
Vintage 1920s Unknown Art Deco Chandelier Earrings
Diamond, Platinum
Vintage 1970s European Chandelier Earrings
Diamond, Onyx, 18k Gold, White Gold
Vintage 1920s British Art Deco Engagement Rings
Diamond, White Diamond, Emerald, Platinum
Antique 1880s French Victorian Brooches
Diamond, Gold, 18k Gold, Yellow Gold, Silver
21st Century and Contemporary American Fashion Rings
Diamond, Blue Sapphire, 18k Gold
Vintage 1910s French Belle Époque Dome Rings
Diamond, Ruby, 18k Gold, Platinum
Early 20th Century Swiss Art Deco Wrist Watches
Diamond, Platinum
Early 20th Century Edwardian Band Rings
Diamond, Yellow Gold
Antique 19th Century Victorian Wedding Rings
Diamond, Yellow Gold
21st Century and Contemporary Pendant Necklaces
Diamond, 18k Gold, White Gold
Vintage 1950s Engagement Rings
Diamond, Platinum
Antique Late 19th Century Cluster Rings
Diamond, 14k Gold, Yellow Gold
21st Century and Contemporary Link Necklaces
Diamond, 18k Gold, Silver
21st Century and Contemporary Unknown Engagement Rings
Diamond, 18k Gold
Antique Early 1900s Edwardian Engagement Rings
Diamond, White Diamond, Platinum
Mid-20th Century Retro Solitaire Rings
Diamond, Platinum
Antique Late 19th Century Victorian Cluster Rings
Diamond, 14k Gold
Antique 19th Century Unknown Victorian Engagement Rings
Diamond, 18k Gold
Vintage 1920s Art Deco Engagement Rings
Diamond, White Diamond, Platinum
Antique Early 19th Century Georgian Cluster Rings
Diamond, Gold, 18k Gold, Yellow Gold
Vintage 1920s Art Deco Tennis Bracelets
Diamond, Platinum
Antique Early 1900s Stud Earrings
Diamond, White Diamond, Platinum
Vintage 1920s Art Deco Engagement Rings
Diamond, Platinum
Vintage 1960s American Engagement Rings
Diamond, Platinum
2010s Engagement Rings
Diamond, Platinum
Vintage 1910s Edwardian Cluster Rings
Diamond, White Diamond, Platinum
Vintage 1950s Engagement Rings
Diamond, White Diamond, Platinum
Vintage 1910s Edwardian Engagement Rings
Diamond, White Diamond, Platinum
- 1
- ...
7 Carat Old Mine Cut For Sale on 1stDibs
How Much is a 7 Carat Old Mine Cut?
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.