Sales staff's understanding of jade classification is basically the same as that of many people in the industry, including many industry experts. Compared with diamonds and other gems that have been classified by the national standard, the structure of jadeite is much more complicated, and the humanistic factors, including aesthetics and sculpture, are not the same as diamonds.

At present, the national standard stipulates that the origin of jewelry and jade does not participate in naming, which means that the origin does not participate in naming when the jewelry and jade samples are identified.

Promulgated by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China and State Standardization Administration Committee. Introduction to the standard: This standard specifies the terms and definitions of natural non-inlaid and inlaid polished diamonds, and the classification rules of diamond color, clarity, cut, diamond quality and diamond classification certificate.

GB11887-2012 Provisions on Purity and Naming Methods of Jewelry and Precious Metals Promulgated by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China and State Standardization Administration Committee. Introduction to the standard: This standard specifies the terms and definitions, identification methods and identification features of jewelry and jade.