Ring Core Ceramic (Black) Liner for Inlay

High polish black ceramic inside ring liner core ready for any inlay material. At less than 1mm thick it is perfect as a durable  ring blank to mount any inlay material outside of ring. Zirconium ceramic is a very hard and durable material, same material used in heat shields, bulletproof vest, etc. Hypo-allergenic as well with superior scratch resistance. 8mm, 6mm and 4mm widthsUS standard whole and half size ring blanks to create beautiful, handcrafted rings. Great for personal use, selling or giving as unique gift.Materials: Ceramic