Not real sure. I know it is not sterling. Sorry i am 360 miles away from home right now or I will take a look at it when I get home and re-post for you. It is a cool ring.
Sweety. I have no idea as to if it will turn. I have worn it as a thumb ring from time to time and it has not turned on me. i beleive it is stainless. As for useing it as a wedding band i can tell you that itn is coming from a house of love. So good around it:0)