1, shopping invoice. Be careful not to use financial vouchers. Some enterprises give customers receipts instead of invoices in order to evade taxes. Vouchers are not formal bills to safeguard rights and interests, and invoices must be adhered to.

2. Jewelry appraisal certificate. Including weight (grams), purity, style description and processing date.

3. After-sales service card (maintenance card). After-sales service is an important extension service, and it is also an important content to safeguard one's own rights and interests.

Platinum jewelry belongs to valuables. Customers are advised to pay attention when buying gold jewelry products, and choose a jewelry store with good reputation and brand. Relatively speaking, the quality of well-known brand stores is guaranteed, and after-sales service is more guaranteed. Then be cautious before buying and ask about the brand's after-sales regulations. Consumers can complain to the local industry and commerce department if they encounter some overlord clauses such as' merchant rules and store rules'. In addition, it is necessary to properly keep the purchase vouchers, certificates and other related certificates and bills, and it is best to put them together with the jewelry box for easy retrieval.