Silver Starfish This delicate necklace features a fine silver (99.9% pure silver) starfish. Made out of precious metal clay (PMC) this starfish was created from a mold of a real starfish. It was then hand refined, kiln fired and the tumbled to a brilliant high shine. A small hole was drilled and then the charm was placed on a sterling silver jump ring and sterling silver 18" chain. Starfish measures 3/4" (2cm) across and about 3/4" (18mm) vertically. Hangs on 18" sterling silver chain.