Why is there no appraisal certificate for diamond and gold? I went to a specialty store to buy gold earrings. At that time, I asked for an appraisal, and the clerk said that there were only diamonds, but nothing else. doubt I bought a gold chain of diamonds the other day. I asked her for a certificate. She said that only diamonds and precious stones are available, so she gave me a handwritten invoice. Because before Zhou Shengsheng and Chow Tai Fook bought it, they gave me a printed certificate (product warranty and quality specification) and two pages of paper. I must have the same doubts as you ~ ~ ~ Suddenly one day I carefully looked at the steel seal on the M-buckle of the chain, and it really looked like it was coming. It is printed with "YH 18 thousand gold", and there is a shallow D in the same place. Later, I asked many friends to know YH.