Probably silvertone as long as it doesn't turn the finger green when worn. Are you able to get a clearer pic of it? It looks pretty, but it's a little hard to see in the pic here.
unfortnately this is the clearest pic i can get at the moment. i dont know if it will turn ur finger green or not. its never been worn. i bought it as a set of 3 at jc pennys just dont wear pearls.