It doesn't say what it is made of, but there is a slit in the back where it looks like they put it together. I just can't say for sure, it is pretty, but it was in a jewelry box of my mothers and we are going through getting rid of her stuff, and this was in there. I don't even remember seeing my mother wear it so it is probably old
it could be sterling, not sure, it was my mother's and we are cleaning out her stuff and it was in her jewery box, but I don't ever remember seeing her wear it so it must be old. It seems to pick up the light, and it doesn't have any marking on the inside, but there is a line in the back I think where it was connected, not sure what it is, but it is a really pretty ring