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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.  

Also called Y necklaces as they are designed to hang a certain way, vintage drop necklaces are striking and adaptable. They can enhance everything from a casual sweater-and-jeans combo to an elegant heels-and-evening-dress pairing.

Adornment is an ancient human practice, with archeologists identifying early jewelry made from bones, claws and shells. As technology has advanced, so too have jewelry designs and the design of necklaces, from the simple to the intricate.

Drop necklaces come from lariat-style necklaces, which are chain necklaces that end in a tassel or pendant. A drop necklace’s design, meanwhile, is long with open ends, and it usually does not have a clasp. It consists of a single chain that wraps around the neck and a centerpiece — sometimes featuring a diamond or pearls — that hangs down to the middle of the chest. Drop necklaces frequently come in lengths from 16 to 20 inches, with the vertical lines making them appear longer than other necklaces of the same length.

Drop necklaces are extremely versatile, able to be worn knotted, draped or looped. They can be chunky statement pieces or thin, minimal designs. The range of drop necklaces that can be found on 1stDibs can accentuate the plunging necklines of modern looks or add flair to a basic ensemble.