It's not all true. Merchants selling jewelry in Aauto Quicker will attach a jewelry appraisal certificate, which records the origin, material and expert signature of the jewelry, as well as the watermark of the merchant. If the idle jewelry in Aauto Quicker meets the above requirements, it is true. Only when you have a jewelry appraisal certificate can you prove that the jewelry sold in a auto faster is true, and vice versa.