According to Guangdi Jewelry Company of Guangdong Geological Bureau, at many jewelry appraisal activities held in front of the store, more than half of the jadeites that many people bought while traveling were cheated by on-site experts. In fact, Cantonese people need to go to foreign tourist attractions to buy jade. Guangdong itself is the wholesale center of gems in the world. It is cheaper to buy jade in Guangdong. Guangdi Jewelry holds many jewelry appraisal activities every year. However, according to experts on the spot, more than half of the jadeites that many people bought while traveling were cheated, and many of them were not real jadeites. At present, we have found many gems similar to jadeite, including dyed quartzite (Ma Laiyu), Dongling stone (quartzite containing chromite), chrysoprase (Australian jade), hydrogrossular (Guicui, Qinghai jade), dushan jade, serpentine jade (Xiuyu, Nanfang jade, Xinyiyu), nephrite (jasper) and marble jade. Many consumers fall into the tourist shopping trap because they lack professional knowledge, take it for granted that it is cheaper to buy jade in the country of origin, or trust the shopping environment of tourist countries too much. For example, jadeite comes from Myanmar, but the jadeite purchased in Myanmar is likely to be processed in China and then exported. In fact, where do Cantonese people buy jewelry and jade? Guangdong is the world gem wholesale center. Buying gems locally in Guangdong is cheaper than going to most tourist spots, and the quality is more guaranteed. There are several ways to identify natural jadeite with naked eyes after artificial treatment and optimize jadeite: first, look at the color; Second, look at the luster; Third, look at the surface structure; Fourth, listen to the sound; Fifth, look at the "green" nature, A goods have green nature, and B goods and C goods have no green nature; Sixth, observe the internal structure and material characteristics; Seventh, observe whether there are bubbles, and the jadeite with bubbles is artificially treated; Eighth, acid drop test, drop a drop of acid on jade, and natural jade will disperse quickly, while non-natural jade will form water drops; Ninth, some dyed C jadeite will turn red under the color filter. In addition, consumers should learn to read identification certificates and product labels. According to GB/T 16552, the name of jewelry contains multiple information, including: what kind, whether the material is natural or artificial, whether it has been optimized or treated, etc. According to the standard, the word "synthesis" must be added before the name of jewelry and jade is synthesized; Jewelry and jade that have been treated manually must be marked with the word "treatment" or the treatment method. For example, synthetic cubic zirconia looks like a diamond, and the word "synthetic" must be included in the name, and it cannot be labeled as "zircon" or even mislabeled as "zircon". Commodities commonly known as Emerald B in the tourism market should be correctly labeled as "Emerald (treated)" or "Emerald (bleached and filled)", not just "Emerald". How to be a smart collector? First of all, we must understand the goods. Knowing the goods is the foundation. We must learn to distinguish the authenticity of jadeite and evaluate its quality. Secondly, we should fully understand the market and know how to judge the future market trend and current collection hotspots.