1, "Cuidingdang Jewelry" and "Cuidingdang Jewelry" This is a platform dedicated to the exchange and sharing of jewelry, supporting the identification and appreciation of jadeite and jadeite. There are many professional appraisers in the platform to help users identify jadeite for free. There is also a lot of encyclopedia knowledge about jadeite in the software to share the knowledge about jadeite.

2. Free is inaccurate. At present, there are three national qualification certifications in Chengdu, namely: 1, the first testing center for jewelry and jade of Sichuan Quality and Technical Supervision Bureau, and Dongmen Street of Chengdu. 2. Chengdu Product Quality Supervision and Inspection Institute, No.9 Yongfeng Road, Yiguanmiao, Chengdu.

3. Also, some specialty stores or antique shops have services to help identify jade articles, but how to charge them is uncertain. If it is a free appraisal of some stores, you should pay more attention. Unless you buy jade articles in that store, you will generally not help identify jade articles for free. After all, the water for free appraisal of jade articles is still relatively deep.