This kind of chaos in the market is actually caused by the administrative salary of the quality supervision department and the industrial and commercial administration, which is the disadvantage of the establishment. The country is now reforming and streamlining the establishment to the appointment system. We have a long way to go and hope to see a fair and legal consumer market as soon as possible.
In short, don't be greedy for petty gains and suffer big losses, and don't buy jade or jade inlaid with gold foil in such a small brand merchant in any shopping mall. Big brands "Lao Fengxiang" and "Chow Tai Fook" do not need publicity, and there is no shortage of consumers. However, the quality of big brands must also be personally optimistic. In case you don't pick out any defects in front of the counter, as long as you leave the store, people won't return the goods in full or even exchange them for you, which will make people very angry and lead to many shoplifting. Small brands are selling money and running away. I can't find the necklace after it was broken. In addition, it is best to buy pure gold and sterling silver jewelry without jade inlaid in brand stores. If you have the conditions to calculate the accurate mass and volume, you can identify yourself and only calculate the density.