Ceramic rings are made out of a jewelry-grade metal called zirconium ceramic, and are an amazingly lightweight, hypoallergenic, and virtually scratch-proof alternative to traditional wedding rings. The luster of ceramic rings is very similar to Tungsten, and the surface shine will last for a lifetime, so no additional polishing or care is necessary. Please note that, due to their hardness, ceramic rings can shatter if dropped or knocked against a hard object.