Liaoning Gemstone Quality Supervision and Inspection Center charges each time 10 yuan. According to relevant public information, China Gemstone Quality Supervision and Inspection Institute, also known as the National Gemstone Quality Supervision and Inspection Center, is a national-level quality inspection institution authorized by law, which has passed the metrological certification, authorized accreditation and ISOIEC 17025 laboratory accreditation of the national product quality supervision and inspection institution, and is an authoritative institution in the field of gem jewelry inspection in China. And was designated as the national scientific and technological achievements testing and appraisal institution, import and export commodity inspection laboratory, and designated commodity laboratory of China Consumers Association.