According to relevant national laws and regulations, the sale of jewelry requires corresponding qualifications. According to the regulations of relevant national departments, it is necessary to pass the corresponding testing and certification and apply for relevant certificates to become a jewelry seller with legal sales qualifications.

These certificates can ensure that consumers can buy jewelry with guaranteed quality, and can also provide sellers with certain legal protection. Unqualified sellers may sell illegally or sell low-quality products, which will have adverse effects on consumers and the market.

Therefore, in order to ensure legality and compliance, the sale of jewelry must have the corresponding qualifications.