Electronic certificates have the same effect as paper certificates. Explain that the certificate is true, but you should check whether the certificate is the certificate of the jewelry in your hand. For example, the seal on the jade appraisal certificate must be steel seal, and the handwriting on the steel seal must be clear and legible.

The formal quality inspection certificate of jewelry and jade should be signed by two people, one of whom must be signed by China people and Chinese jewelry and jade quality inspector (registered). Registration is within the validity period, and only signature cannot be stamped. This inspection certificate has legal effect.