Refers to the bracelet number made of pure natural jade. As long as pure jade has not undergone additional processing, carving and polishing, regardless of its quality and color, bracelets made from it can be called A goods. The number at the back is the code.

Usually, the formal jewelry and jade appraisal certificate, the remarks are: commonly known as "A" goods. Such a string of numbers is usually the certificate number of this product, just like everyone's ID number. Each identified product has its own number. I hope my answer is useful to you.

First of all, your certificate and label are the same commodity, and the style and price are the same. The certificate number is the certificate label of jade, not the commodity bar code of jade. Well, these two kinds of jade represent different meanings.

It is because there are thirteen sects of Buddhism introduced into China, which is considered as an auspicious number in Buddhism. There are thirteen sects of Buddhism introduced into China, with thirteen pagodas, representing the perfection of merit. So the beads are refined into 13 beads. However, there are no 13 beads in Buddhist classics.