According to an insider's inquiry, Kim Jong Kook Silver Jewelry Testing Center provides customers with complete jewelry testing services, including the quality testing of all kinds of gems and diamonds, the identification of jewelry materials and manufacturing processes, and the production of jewelry certificates. Moreover, the center has advanced equipment and strong technical force, and professional services can provide customers with the best test results.

Kim Jong Kook Silver Jewelry Testing Center is a professional organization engaged in jewelry testing services. Its testing items cover all kinds of jewelry varieties and materials. The center has participated in many important jewelry exhibitions and auctions, and its professional testing opinions have also been recognized and trusted by the industry.