The official invoice is proof of purchase. When asking for an invoice, consumers should check whether the invoice is supervised by the tax department to prevent being cheated. Usually, invoices for gold jewelry will contain this information:

1. Name: This is the name of gold.

2. Content: This is a clear indicator of gold content.

3. Unit of measurement: grams or pure gold, etc.

4. Weight: This refers to the weight of gold.

5. Price: This is the price of gold.

6. Seal: There must be the seal of the issuing unit and the anti-counterfeiting mark.

Therefore, when buying gold jewelry, you should ask for formal invoices as much as possible to ensure your rights and interests. At the same time, we should also pay attention to check whether the information on the invoice is correct and complete, so as to avoid being deceived by fake invoices.