Shanghai Fengxian Nanqiao has an original stone appraisal institution. Shanghai National Jewelry and Jade Quality Supervision and Inspection Center is located at No.9555 Nanfeng Highway, nanqiao town, Fengxian District, Shanghai. It is a professional jadeite original stone testing institution, which can conduct free evaluation and professionally identify the original stone.
Such a problem cannot be solved directly, otherwise it will be blocked as an advertisement. Please take a look at Baidu-Shanghai Jewelry and Jade Appraisal Center, which has three nationally certified appraisal institutions with detailed addresses and telephone numbers, and charges 20 yuan one piece.
Shanghai is a very active city in jade trading. At present, there are four authoritative jewelry and jade appraisal institutions with national qualification certification, and the fees generally range from 40 to 60 yuan (single piece appraisal, non-batch price). But the specific address needs the landlord Baidu: Shanghai Jewelry and Jade Appraisal Center.
All major jewelry stores have jewelry appraisal. If it is safe, go to those famous jewelry stores for identification. Of course, the auction house also has appraisers, but be careful not to be fooled. As for the cost, it will vary according to the identity of the appraiser, which needs your own consideration.
Any of the three identities of CNACL. China Metrology Certification Association consists of national or provincial metrological certification and accreditation institutions and accredited metrological certification units. CAL is a nationally recognized testing institution. CNACL has passed the test of the national accreditation testing organization of China Laboratory.