1. National Jewelry and Jade Quality Supervision and Inspection Center (NGTC):
The National Jewelry and Jade Quality Supervision and Inspection Center (hereinafter referred to as the Inspection Center) is a national professional quality inspection institution authorized by the relevant competent departments of the state according to law, and it is the authoritative institution for jewelry and jade testing in China. The agency has two testing centers in Shanghai and Shenzhen.
The inspection center provides entrusted inspection services to the society, undertakes national market supervision and inspection, arbitration inspection, import and export commodity inspection, and formulates and revises relevant national standards. It plays a guiding role in standardizing the domestic jewelry market and promoting the healthy development of the jewelry industry.
2. Gemstone Testing Center of China Geo University (GIC):
With the approval of the Ministry of Geology and Mineral Resources, China Geo University has established 1983 Gemstone Laboratory, 1989 Gemstone Research Institute, 1992 Jewellery Research Institute and 1993 Jewellery Testing Center, which mainly serve the society extensively. At present, it has trained thousands of technical backbones and hundreds of senior appraisers for jewelry quality inspection institutions, production, processing and wholesale units all over the country, and has been praised as the "cradle of treasure education" at home and abroad. Appraising and consulting hundreds of thousands of jewels and jade articles for the society every year.
3. China Quality Inspection Alliance Gold and Silver Jewelry Testing Center (CTA):
CTA is the abbreviation of China Quality Inspection Alliance and China Inspection Warner Quality Technology Center. CTA is supported by the General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) and consists of dozens of international key provincial and municipal product quality supervision and inspection institutions. CTA is a comprehensive authoritative professional organization authorized by the state to engage in quality supervision and inspection and quality technical services. We have a group of experienced inspectors, auditors, auditors, inspectors, appraisers, quality engineers, standards experts, measurement experts and related industry technical experts with certain influence at home and abroad. CTA has a total laboratory area of more than 300,000 square meters and a large number of advanced testing equipment, with a total of more than 40,000 testing equipment. CTA is headquartered in Beijing and has branches in all major provinces and cities in China.
4. National Light Industry Jewelry Quality Supervision and Inspection Center (GJC):
The center is a metrological certification unit of the State Bureau of Quality and Technical Supervision. The appraisers in the center are composed of jewelry appraisers and appraisers who have obtained the national registered jewelry quality inspector certificate, GIA certificate from the United States, FGA certificate from the United Kingdom, HRD certificate from Belgium and GIC certificate from China.
Adhering to the scientific, fair and authoritative appraisal quality and pursuit, the center personnel have been committed to the nondestructive appraisal of diamonds, colored gems and jade while adhering to national standards and referring to foreign standards. It has undertaken the tasks of gem appraisal and teaching consultation from consumers, suppliers, sales industries, auction houses, pawn shops and public security courts, and won a good reputation and evaluation in Shanghai and even the whole country with excellent professionalism and technology.
5. Gemstone Association of China (GAC):
Gemmological Association of China is referred to as "Gemmological Association of China" or "GAC" in English. China Gemmology Association is responsible for the quality supervision and inspection of self-discipline products in the national jewelry and jade jewelry industry, and invites local jewelry associations (merchants) to cooperate and assist in the self-discipline supervision and inspection of product quality.
6. Jewelry Testing and Research Center (GTC) of the Jewellery Chamber of Commerce of the All-China Federation of Industry and Commerce:
Jewelry Testing and Research Center of Jewellery Chamber of the All-China Federation of Industry and Commerce is a national-level jewelry testing institution approved by China National Accreditation Committee for Laboratories and demonstrated by China National Accreditation Supervision and Administration Committee.