Lead: With the development of jade market, there is an urgent need for a reference pricing standard. However, there is a phenomenon that the pricing standard is very difficult in the market at present, and some jade prices are priced at will. With the development of jade market, a reference pricing standard is urgently needed. However, at present, there is a phenomenon that the pricing standard is difficult in the market, and some jade prices are arbitrarily priced. In fact, jade has a set of scientific appreciation, evaluation and pricing methods, which is not what people often say. The country has a registered jewelry appraiser, which is to scientifically price jewelry including Hetian jade. The price of Hetian jade is determined by the quality of Hetian jade itself, with a difference of ten million times. People with discerning eyes can already see that the price of jade is not accurate to how many yuan, but an interval. Moreover, the price changes every month. Experts often say, "If you don't buy and sell jade for half a year, you will become a layman." Even if you look at the price at the same time, it is normal to float up and down by 50%. Different experts and different needs have also caused different bids. There is another interesting phenomenon about the price of jadeite. Whether you are an expert or a layman, low-grade jade tends to raise prices, while high-grade jade looks at low prices. The more low-grade jadeite, the higher the profit rate of merchants, and the more high-grade jadeite, the lower the profit rate of merchants. Two sapphires are in front of us. What do we compare? The answer is: color, transparency, size, thickness, technology, fineness. Hetian jade color, not the deeper the better, but the brighter the better. It's better to be shallow than dark. The more green parts, the higher the value, the more uniform the green color, and the higher the value. Specific transparency, specific thickness of crystalline particles. Experts are also called "heads" and "seeds". The more transparent, the finer the grain. That is what experts often say, "a good seed is enough." Experts buy seeds, laymen buy colors. During the Qing Dynasty and the Republic of China, jade was valuable if it was green, and it was waste if it was not green. Now "seeds" are getting more and more attention. Of course, it is more valuable than the size, but the big one is more reasonable and more aesthetic. If it is large and inappropriate, there is not much room for appreciation. Thick, of course, is good, there are many materials and all materials. Full jade beauty is also better, but we should also pay attention to a reasonable proportion.