China-Jewelry and Jade Quality Inspector (CGC) Jewelry and Jade Quality Inspector (CGC), also known as National Certified Appraiser, refers to the professional and technical personnel who have passed the national unified examination and obtained the qualification certificate of quality inspector and are registered to engage in jewelry business activities. After passing the examination, the General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) will issue the qualification certificate of jewelry and jade quality inspector uniformly printed by the Ministry of Personnel and stamped by the Ministry of Personnel and the General Administration of Quality Supervision, Inspection and Quarantine, which is valid nationwide. The examination system for quality inspectors of jewelry and jade was implemented from 1997, and the first batch of quality inspectors was born on129 October. Up to now, there are 797 registered appraisers in China. Every three years, the country conducts qualification registration for quality inspectors. During this period, quality inspectors must always engage in the work related to the quality inspection of jewelry and jade, and receive re-education for a certain period of time to ensure that they constantly update their knowledge, master the latest quality inspection technology, and maintain a high professional level. Registration conditions: 1. Obtained a secondary school degree in jewelry and jade specialty (including geology) and engaged in jewelry and jade appraisal and inspection for 5 years; Or obtain a secondary school degree in this major and have been engaged in professional work for 7 years. 2. Obtain a college degree in a related major and have been engaged in professional work for 2 years; Or obtain a college degree in this major and have been engaged in professional work for 4 years. 3. Obtain a bachelor's degree in relevant major and have been engaged in professional work for 1 year; Non-undergraduate degree, engaged in professional work for 3 years. 4. Obtain a master's degree or above in related majors and have been engaged in professional work for half a year; Or obtain a master's degree or above in a non-professional field and have been engaged in professional work for 1 year. 5. Employed as a professional engineer in jewelry and jade (including geology) or above. 6. Obtain the qualification examination certificate of jewelry and jade inspection which has great influence abroad. The examination subjects include the basic theory of gemology and related laws and regulations, professional knowledge of gemology, gem identification and diamond identification and classification. Among them, the first two subjects are theoretical examination and closed-book written examination; The last two subjects are practical exams, which require candidates to use instruments for practical operation. Examination time The examination is held every two years, usually in early July. The examination time for a single subject is 3 hours.