In some cases, counterfeit goods may be sold in jewelry stores. Although most jewelry stores operate in good faith, there are still some fake and shoddy products in individual businesses or markets. In order to avoid buying fakes, the following are some precautions:

1. Choose a reputable merchant: choose a jewelry store with good reputation and high credibility to buy products. You can know the reputation of merchants through online search and word-of-mouth recommendation.

2. Check certificates and quality inspection marks: high-quality jewelry generally carries quality inspection marks and related certificates, such as GIA certificates for diamonds. Check these certificates and marks carefully to ensure their authenticity.

3. Know product knowledge: Before buying jewelry, know the knowledge of related products, such as the type, color and quality of gems. This can help you better distinguish between genuine and fake products.

4. Review the product details: carefully check the details of jewelry products, such as lettering, inlay technology, metal marking, etc. Real high-quality jewelry usually pays attention to details and craftsmanship.

5. Avoid blindly buying low-priced products: If the price of a product is too low, there may be false possibilities. The price of jewelry is usually related to its material, weight and quality. Too low a price may be a sign of false or low-quality products.

6. Seek professional advice: If you are in doubt about the authenticity of the purchased jewelry, you can seek the opinions of professional appraisal institutions or jewelry experts to ensure the authenticity of the purchased products.

Although the above suggestions can help you reduce the risk of buying fake goods, it is still recommended to collect as much information as possible before buying, and keep the purchase vouchers and related documents for future reference.