Sapphires are among the most precious gems, yet they consist solely of chemically 'contaminated' aluminum oxide, or corundum. It is widely assumed that these crystals with their characteristically ...

Sapphire is the birthstone for September and is associated with wisdom, loyalty, and elegance. A variety of sapphire jewelry is available, from earrings to engagement rings. Several retailers offer ...

A new study of sapphires found in volcanic fields in Germany reveals that these beautiful blue stones form where magma and rocks from Earth's crust mix. When you purchase through links on our site, we ...