These gothic crown fakes are very very good, until we can pin down the exact points of working out how To spot One the ONLY other suggestion (if you bought it) would be to send it to CGS seeing as You know the dealer i assume he'd take it back if it were found to be fake. The price seems good, so its a tough call. Ask him where he bought it/got it, was it part exchanged for something, does He know how to spot a fake etc? If not, how does HE know it's genuine, explain your concerns. Caveat, if the price is too good to be true then i'd still be wary