Diamond Bombe Dome Ring

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.  

Antique sapphire and diamond dome rings are the perfect minimal accessory for everyday wear, versatile enough to work with all types of outfits. They have grown in popularity due to their simple and elegant design. With smooth lines and a polished surface, these chunky rings can look futuristic or tastefully modern.

Their name comes from an all-metal dome design that is thinner on one side of the band and becomes thicker on the opposite side with a curved shape. The bands range in thickness, and you can find varieties in gold, silver and other precious metals adorned with gemstones like sapphire, diamond or onyx.

Dome rings fit into the same design category as the similarly minimalist signet and cocktail rings. Unlike those styles, which have one part elevated from the band, a dome ring has a seamless and smooth design with no patterns.

Go modern or classic with an authentic dome ring. You can wear a dome ring on a night out in a flashy evening dress with dangling earrings or at work with a conservative blouse and a pair of studs. It even looks great with casual jeans and a T-shirt. With thinner dome rings, you can stack them and offset your look with a dainty necklace.

On 1stDibs, browse dome rings by creator, including pieces by Sarosi By Timeless Gems, Cartier and Ferrucci, or by style such as contemporary, modern, retro or Art Deco.