Peridot, blue sapphire, and fancy yellow and green sapphire on a printed scarf

Why do some gemstones come in multiple colors?

Have you ever stopped to wonder why gems like peridot come in just one color while sapphires, though primarily found in blue, come in virtually every color with endless shades of each? That is because the color of some gemstones is derived from elements that are part of their essential chemical composition while others are […]