I believe this is a silver ring from Kumikyoku. Size: Approximately size 15 I apologize, I don't remember the exact size. Please check the size by referring to the measurement I've attached, which was taken with a ruler. I've only worn it once. It has been stored at home and has some scratches, and as it's a silver ring, it may show some tarnish. I will ship it in a Kumikyoku box. It will be simply packaged. Due to this being a branded item, returns are not accepted. This is a used item stored at home by a private seller, and the size is also unclear. Therefore, please understand that this is a used item before purchasing. Thank you. I can provide additional photos if needed, so please feel free to contact me.