Is the crystal necklace bought by Beijing Tourism true?

Need professional technology and equipment for identification. The price of the crystal necklace you bought is too low, or there are defects, bubbles, color differences and other problems, so you need to be alert to possible fakes. It is recommended to choose a reputable merchant or a professional crystal shop to buy it, or to go to a professional crystal appraisal institution for appraisal to ensure that the purchased crystal necklace is genuine.