Made of sterling silver and set with a half-sphere of powerful black onyx, this 1 1/4" in diameter pentagram pendant provides the perfect amount of discretion, while allowing you to wear the symbol of your faith about your neck. Known for its ability to help you ground and protect you from negative energies, the black onyx in this piece measures just shy of 1/2" thick, giving a heft and balance to this piece that must be felt to be believed.