This is a national inspection. Huajian Zhixin Jewelry and Jade Appraisal Center is a jewelry testing institution authorized by the state according to law and certified by the state. It is a third-party impartial testing institution with an independent legal person, and every appraisal certificate issued by a jewelry testing institution with qualification certification and measurement certification by the supervision and management committee of this institution has legal effect. Therefore, the quality certificate of the intermediate inspection is the national inspection.