Black Friday Doorbusters

Carnelian is a glassy, translucent stone that can appear with such bright orange hues that the ancient Egyptians called it “the setting sun.” Most ...

Sapphires are precious gemstones, but unlike rubies, they come in a rainbow of colors besides red! They are all varieties of the mineral corundum,...

Spinel is a hard vitreous magnesium aluminum oxide, and comes in a range of other colors, but those varieties are transparent. Black Spinel not onl...

Spinel is a hard vitreous magnesium aluminum oxide, and comes in a range of other colors, but those varieties are transparent. Black Spinel not onl...