1. See if the certificate contains brand name, certificate number, item description, material composition, purchase date and other information. If all these information can be clearly identified, then the authenticity of the certificate is relatively high.
2. See if there are security measures such as anti-counterfeiting marks and steel seals on the certificate. These measures can help us identify the authenticity of the certificate.
3. Look for a jewelry and watch shop with high credibility to avoid buying fake goods or items obtained through informal channels.