He is so young, how memory so bad ah, many years ago we bought the diamond was with GIA certificate put together, but I couldn’t find a certificate. My two days with one of my cousin about diamond market, want to make us treasure for years diamond repurchase, but no certificate what organization can admit that diamond is real. It is said, can take the diamond direct to make an identification, but it needs the expense, but also for the diamond will also have certain wear. At that time we thought the GIA certificate is not so important, but now I know that little piece of paper, it represents the value of diamond.