This pendant is a copy on sterling silver 925 of unique item , I have bought from Bali . A bone carved with a Balinese motif known as patra punggel . You can choose the silver pendant or the 22k gold plated silver . I use .925 Sterling Silver, which requires polishing from time to time from oxidation. You can easily restore silver back to shine with a polishing cloth or use a polishing lotion for that extra shine. All of my jewelry is handmade please allow for small variances from piece to piece