2. Yes. Nanxiang is located in the northwest of Shanghai, belonging to Jiading District, where there is a shop specializing in jade appraisal, so there is. Jadeite is a fibrous aggregate composed of pyroxene minerals mainly composed of jadeite minerals.
3. There are four national qualification certification institutions in Shanghai, which can carry out the authoritative certification of jadeite. The charging standard and the certificate issued by the authenticity authentication, each 20 yuan.
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.
5. It can only help you detect the authenticity or fineness of jadeite, and will not help you "detect the price of jadeite".
6. 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.