Sterling Silver Black Onyx Knight Signet RingMen who collect signet rings tend to be specific about what goes on their hand. This black onyx knight signet ring is built for the guy who wants something darker than a class ring but more refined than a skull band a sterling silver signet with a genuine black onyx cabochon framed by knight crests and gothic scrollwork. The stone measures 11mm 16mm, polished to a glassy black surface that absorbs light instead of reflecting it. Wear This If If you