Inner diameter: 2.3cm Approximately 10g Made of stainless steel, so it is resistant to corrosion, discoloration, and rust. It's a bit hard to see, but it's a solid gold color! Dagger Ring I don't know the ring size, but I've uploaded an image showing an easy way to determine the size, so please take a look. The size was 7cm on the stretched paper. Wrapping a 7cm string or paper around your finger might be helpful as a reference. This is a parallel import product. Please refrain from purchasing if you do not understand parallel import products, if you are particular about domestic正規品, if you are looking for a perfect condition, if you are nervous, or if you have any concerns. *Please refrain from purchasing if you are looking for the same quality as domestic正規品. We recommend purchasing from domestic authorized dealers or department stores. Color: Gold Stone/Type: None