This necklace features an artisan cast of a real piece of crystal quartz in solid 925 sterling silver. It hangs from a sterling silver 20” chain. *The crystal pendant is sterling silver not a real stone, but made from a casting of one and has the crevices of a real one. These are natural flaws associated with quartz and not damage. Hallmarks: 925 on lobster clasp Preowned Reasonable offers considered