I haven't got the slightest idea, I bought it a long time ago to give to someone and our relationship ended and I just never got rid of it until now. Sorry I know that's not what you wanted to hear, but it wasn't very expensive so I doubt if it is precious metal or it would have been more expensive. So if you think it's pretty and would like to own it please bid on it so I can get rid of the memories every time I look at it.
I did't now that maybe I can find something else ith yellow stones in it all so, I'll check with my daughter and see if she has anything she wants to get rid of.