A 10mm Sapphire bead is the bob of this pendulum. It is opaque, so not a high jewelry grade, but Sapphire has been one of the most highly prized gemstones throughout history by virtually every civilization. Just about every positive power is attributed to Sapphire. When Sapphire is a red color, it is called Ruby, which is why I have chosen a small Ruby bead for the handle of this pendulum. 5 1/4 inches