Blue topaz is one of December’s birthstones along with tanzanite and turquoise, and symbolizes long life, wisdom, and knowledge. Found in a wide range of hues from deep London blue to paler sky blue, its versatility allows it to be cut in a wide variety of shapes. The ancient Greeks believed that topaz gave strength to the wearer. This stone comes in almost every color on the spectrum and high quality examples will have bright color and good transparency.