Jewelry stores can find the diamond security code. According to relevant public information, jewelry stores can find the diamond anti-counterfeiting code, because the diamond anti-counterfeiting code is compiled by the National Jewelry Quality Supervision and Inspection Center. It is a 16-digit code composed of diamond code, quality grade, weight, clarity, cut, color and other information, which is used to identify the authenticity and quality of diamonds. Jewelry stores can check the diamond security code to confirm the quality of diamonds and other information, so as to ensure that the diamonds they buy are genuine.