Stone size: Approximately 14-14.5mm Inner diameter: Approximately 18cm This piece has a lot of inclusions. Please examine the photos carefully and make your decision. Immediate purchase is welcome, even if the item is currently being negotiated. If you wish to negotiate a price, please state your desired amount in the comment section first (⁠ꈍ⁠ᴗ⁠ꈍ⁠) Thank you.