If you knew after the trade that the ring wasnt a ls5 ring u should have traded it back. He said he gave you some time to trade back the money and get you ring back, instead you keept the money and didnt want to trade it back. Also means its a scam, maybe it true that you didnt knew that the ring wasnt å set 5 ring. But the moment the buyer said it was a set1 ring and not a set 5 you should have traded it back. Cause he said clearly that he wanted a set5 and not a set1. Deal with it mr scammer