This kind is more common. There is a certificate to buy beeswax, and the institution with a certificate will write a name that looks very tall, such as the appraisal institute of China Jewelry Association and the appraisal center of Beijing Gemstone Association. The certificates issued are similar, such as steel seal, signature, website, electronic signature, QR code and so on.
Remarks on big certificate:
In fact, such institutions do not have inspection qualifications at all, and may not even have offices. It has only one "certificate making machine". Give it a piece of "amber beeswax" and it will give you a certificate. It is precisely because of the authoritative position of these three appraisal institutions that many people have mastered the technology, grasped the main points and forged one false certificate after another, whether it is Peking University, Peking University or the national inspection.