You need to complete verification process. I have had negative experiences with bidding on auctions where the seller is not verified. Please just go down to verify my account , click on it, and follow the instructions. We were all new once. Your bids will be really through the roof once you are verified as opposed to your current status.
Looking at the closure on the back, this cameo is quite old. Do you have any idea what the type of metal may be? The cameo appears to be shell and hand carved. I am taking a chance and bidding, but not like I would if I knew what kind of metal the setting is and if you were verified. That is a huge thing with Listians.