1. If you are going to buy a jade bracelet, I suggest you ask the merchant for an authoritative jade bracelet appraisal certificate when you buy it. The authoritative appraisal certificate can be found on the website of the appraisal institution. Because each piece of jade is unique, each appraisal certificate can only correspond to one piece of jade, so there are few false certificates, and fake jade appraisal certificates can't be searched online.
2. If you already have a jade bracelet and want to identify its authenticity, I suggest you go to the local jade identification agency for identification. The fees charged by appraisal institutions are generally around 20~50 yuan, and those in remote areas in the Mainland will be more expensive, but the highest fees will not exceed those in 200 yuan.
Don't worry too much about the fake appraisal certificate when buying jade. Instead, you have to worry about paying a high price for worthless jade, which is the point.
Identification of jadeite bracelet
At present, the classification of jadeite is:
1. Jadeite without any artificial chemical treatment except cutting and polishing, including jadeite requiring a small amount of wax injection and polishing.
2. When heated, it becomes an emerald rich in iron.
3. Only through the optimization of weak acid and weak alkali cleaning, this kind of pickling is often weak acid, such as oxalic acid or myristic acid, without strong acid corrosion, bleaching and glue pouring. This kind of jadeite is only surface optimization, and it will not damage the jadeite structure.