4 Carat Old Mine Cut
Antique 1870s Victorian Engagement Rings
Diamond, Sapphire, 18k Gold
Antique 1880s Victorian Three-Stone Rings
Diamond, Ruby, 18k Gold
Antique Early 1900s Late Victorian Cluster Rings
Diamond, 18k Gold, Silver
20th Century Engagement Rings
Diamond, Platinum
Antique 1880s Late Victorian Signet Rings
Diamond, 18k Gold
Vintage 1920s Art Deco Engagement Rings
Diamond, Platinum
Antique 1880s Victorian Brooches
Diamond, 18k Gold, Silver
Antique Late 19th Century English Late Victorian Engagement Rings
Diamond, Yellow Gold, 18k Gold, Platinum
Vintage 1930s Art Deco Three-Stone Rings
Aquamarine, Diamond, 18k Gold, Silver
Vintage 1920s Art Deco Engagement Rings
Diamond, 18k Gold
Antique Early 1900s Edwardian Three-Stone Rings
Diamond, 18k Gold
Vintage 1920s Art Deco Solitaire Rings
Diamond, 18k Gold
Early 20th Century French Cluster Rings
Diamond, White Diamond, Platinum
Early 20th Century British Engagement Rings
Diamond, White Diamond
Mid-20th Century British Solitaire Rings
Diamond, White Diamond, Gold, 18k Gold, White Gold
Antique Late 19th Century Victorian Dangle Earrings
Diamond, 18k Gold, Yellow Gold
Early 20th Century Unknown Edwardian Drop Earrings
Diamond, 14k Gold, 18k Gold
Antique 1860s Victorian Cluster Rings
Diamond, 18k Gold, Silver
Vintage 1930s Art Deco Engagement Rings
Diamond, 18k Gold
Antique 1860s Victorian Cluster Rings
Diamond, 14k Gold
Mid-20th Century Unknown Retro Cocktail Rings
Diamond, Ruby, Sapphire, 18k Gold, Yellow Gold
Early 20th Century Engagement Rings
Diamond, White Diamond, Platinum
Mid-20th Century British Victorian Solitaire Rings
Diamond, White Diamond, Gold, 18k Gold, Yellow Gold
Early 20th Century Engagement Rings
Diamond, White Diamond, Gold, 18k Gold, Yellow Gold, Platinum
2010s Austrian Contemporary Solitaire Rings
Diamond, 18k Gold
Vintage 1920s Art Deco Cluster Rings
Diamond, Blue Sapphire, 18k Gold, Platinum
Antique 1880s Victorian Cluster Rings
Diamond, Opal, 18k Gold
Mid-20th Century Engagement Rings
Diamond, Brown Diamond, Gold, 18k Gold, White Gold
Mid-20th Century Solitaire Rings
Diamond, Brown Diamond, Gold, 18k Gold, White Gold
Antique 1880s Victorian Cluster Rings
Diamond, Sapphire, 18k Gold, Silver
Early 20th Century Three-Stone Rings
Diamond, White Diamond, Ruby, 18k Gold
Antique 1870s Victorian Three-Stone Rings
Diamond, Natural Pearl, 18k Gold
Vintage 1930s Unknown Victorian Brooches
Diamond, White Diamond, 18k Gold
Vintage 1930s Art Deco Three-Stone Rings
Diamond, Ruby, 18k Gold, Silver
Antique 1890s Art Nouveau Engagement Rings
Diamond, 18k Gold, Silver
Antique 1880s Victorian Three-Stone Rings
Diamond, 18k Gold, Silver
Vintage 1910s German Art Deco Engagement Rings
Diamond, 14k Gold, Platinum
Antique Early 1900s Edwardian Cocktail Rings
Diamond, Turquoise, 18k Gold, Platinum, Gold
Mid-20th Century French Engagement Rings
Diamond, Emerald, 18k Gold, Yellow Gold
Vintage 1940s Retro Engagement Rings
Diamond, 18k Gold, Platinum
Vintage 1930s Art Deco Cluster Rings
Diamond, Sapphire, Platinum
Early 20th Century Brooches
Diamond, 14k Gold, White Gold
Vintage 1920s Art Deco Band Rings
Diamond, Sapphire, Platinum
21st Century and Contemporary American Art Deco Engagement Rings
Diamond, White Diamond, 18k Gold, Yellow Gold, Gold
Antique Early 18th Century Unknown Georgian Brooches
Agate, Sterling Silver
Vintage 1920s Unknown Art Deco Engagement Rings
Diamond, Emerald, Platinum
Antique 1870s Victorian Three-Stone Rings
Diamond, Ruby, 18k Gold
Mid-20th Century Three-Stone Rings
Diamond, Ruby, 18k Gold, White Gold, Yellow Gold
2010s Unknown Modern Link Bracelets
Diamond, Tanzanite, White Gold
Antique Early 1800s Georgian Cluster Rings
Diamond, 18k Gold, Silver
21st Century and Contemporary American Art Deco Engagement Rings
Diamond, 18k Gold, Rose Gold, Gold
Antique 1870s British Belle Époque Engagement Rings
Antique 1870s British Belle Époque Engagement Rings
Vintage 1920s Unknown Art Deco Engagement Rings
Diamond, Platinum
Antique Early 1900s Unknown Edwardian Engagement Rings
Diamond, 18k Gold, White Gold
20th Century Unknown Modern Engagement Rings
Diamond, Gold, 18k Gold, White Gold, Yellow Gold
Vintage 1920s Unknown Art Deco Engagement Rings
Diamond, 14k Gold
- 1
- ...
4 Carat Old Mine Cut For Sale on 1stDibs
How Much is a 4 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.