This adjustable ring has two elegant gemstones: a white moonstone and a black spinel. Both have been set in a serrated setting. The white moonstone has a blue flash when the light hits it and is 6mm in size. The black spinel also has an inner flash and is slightly larger at 7mm in size.
Size 7-7.5. It can go slightly smaller and slightly larger than those sizes but I think it looks best within this sizing.