Amazing silver earrings, I have a lot of questions about them to be honest!! They did not have hooks on them when I got them so they currently have 925 hooks attached. Gorgeous teardrop shaped rainbow colored stones. I’m not sure is the stones are opals or ammolite! They do light up under UV. If you know what they are please let me know! ? they are signed either 925- 950 and Mexico on the backs, the stamps are difficult to make out! The photos don’t do them justice. Either way they are stunning! *if you have other ways to test the Stone let me know!