Width: 1/2" Diameter: 2 1/2" Material: Swarovski crystal Finish: Silver plated Some small stains hardly visible. Please see pictures for imperfections. Thanks for looking😊 To keep it clean, just wipe down your piece with a dry 100% cotton cloth Tuck the piece away when not wearing Keep it away from water, jewelry cleaners, and harsh chemicals It is not designed to be worn 24/7, so give your beautiful piece a break once in a while.