No. I haven't checked it. It's stamped on the inside 18k. I also don't know about the stones. I just come across jewelry that I think is nice and list it on here.
I love this ring, but you really need to be careful, i won a ring on here a while back, and it was marked 14K, took it to jewelers, and it was no where near 14K, I'm not saying this isn't, just be careful! Good Luck!
I haven't had this ring tested. It doesn't stick to a magnet. It has 18k stamped on the inside of the band. If you win the auction and you don't won't the ring just let me know before I ship.