You can learn about the enterprise by visual inspection. Ruili Runlai Jewelry Store can only sell jewelry and jade after approval. Its business scope is jewelry and jade sales, and the business activities can only be carried out after the projects subject to approval according to law are approved by the relevant departments. So the jewelry sold should be real gold. If you buy jewelry that is proved to be fake by experts, you can sue Ruili Runlai Jewelry through legal channels.