Domestic:
1: National Certified Jewelry Quality Inspector of the National Jewelry and Jade Supervision and Inspection Center (CGC)
2. Jewellery College of China Geo University (GIC)
3. Gemstone Association of China
foreign
1: American Jewelry Association (GIA)
2. Royal Jewellery Institute (FGA)
3: Belgian Diamond High Commission
Now the relevant qualification certificates of the jewelry industry are mainly based on the above!