At the age of 70, my mother traveled with a group in Beijing. On June 27th, she bought two bracelets from 560 yuan in Beijing Jinwei Crystal City (south of Xiguan Huandao, Changping District100m, shopping receipt 000923 1 0009232). At that time, the clerk lied that it was crystal opal, and gems were rare. After my mother brought it home, I checked it carefully on the internet and asked the local jewelry store to check it. The discovery is simply an artificial "crystal". Alibaba.com wholesales about one in 28 yuan, and Tmall.com retails about 50-80 yuan. Beijing JinwSiwei Crystal City lied about natural gems, which is obviously a fraud. I hope to investigate! Maintain Beijing's reputation!