The listing, Men's Ring has ended.
This is a very large ring for a man. It has what looks to be a flat black stone, and is fairly heavy. I have no idea what kind of metal this ring is, nor is there any stamping of any kind inside the band. I would consider this costume jewelry as well, as there is no proof to me that it is a genuine ring of any kind. I'm not sure what size this ring is, but it is a large ring. I'm not even sure where it came from.