1. If you pass the CGC exam, you can get the qualification certificate of jewelry appraiser. \r\n2。 The qualification examination of jewelry appraisers is divided into four parts: basic theory of gemology and related laws and regulations, professional knowledge of gemology, gem appraisal and diamond appraisal classification. \r\n3. The basic theory of gemology, relevant laws and regulations and professional knowledge of gemology are theoretical examination and closed-book written examination; Gem Identification and Diamond Identification and Classification are practical examinations, and candidates need to use instruments for practical operation. \ r \ n \ r \ n4 and CGC exams are held every two years, usually in early July, and the single subject exam lasts for 3 hours. \ r \ For more information about how to take the jewelry appraiser exam, please visit:/ask/915a21615828399.html? Zd view more content