Kim Jong Kook Silver Jewelry Testing Center is a legally authorized jewelry and jade quality testing institution, which has passed the CMA and laboratory approval of the national product quality supervision and inspection institution. It is a professional organization for the detection of jewelry, jade and precious metal jewelry in China, and has an independent legal person jewelry detection and appraisal institution, so its detection certificate is reliable.

However, when buying jewelry, in addition to checking the certificate, it is also necessary to evaluate the quality and authenticity of jewelry to ensure the purchase of reliable jewelry.