The word diamond derives from the Greek word “adamas,” which means invincible or indestructible.

Diamonds form about 100 miles below ground and have been carried to the earth’s surface by deep volcanic eruptions.

Diamonds are made of a single element—they’re nearly 100% carbon. Under the immense heat and pressure far below the earth’s surface, the carbon atoms bond in a unique way that results in diamonds’ beautiful and rare crystalline structure.

Diamonds are billions of years old—in some cases more than three billion years old.

The ancient Romans and Greeks believed that diamonds were tears cried by the gods or splinters from falling stars, and Romans believed that Cupid’s arrows were tipped with diamonds (perhaps the earliest association between diamonds and romantic love).