Stone size: Approximately 7.8mm Inner diameter: Approximately 17cm It has a transparent feel and a fluffy appearance. Please examine the photos carefully and make your decision. Immediate purchase is welcome, even for items currently under negotiation. If you wish to negotiate a price, please state your offer in the comment section first (⁠ꈍ⁠ᴗ⁠ꈍ⁠) Thank you.