It is said that Burmese jade merchants, after gambling on stones, generally dare not attend the actual cutting and processing, but burn incense nearby and pray for God's blessing. If there is a lot of bright green in the cut gambling stone, you can get rich overnight; If the gambling stone is cut, its essence is a gray sand head with green outside and white inside, then it will go bankrupt overnight. From the Qing Dynasty to the Republic of China, there was a jargon in the jewelry industry called "gambling". The so-called "gambling" refers to a pair of discerning eyes of jewelry players who go to jewelry stores to find jade. Jade trading, especially rough stone trading, depends on luck, just like gambling and lottery investing in the future. According to Tan Cui's Zhi Heng on the Sea in Yunnan in Qing Dynasty, "Jade came out of the South Jinsha River, and the river was originally Tengyue, which was more than 2,000 miles away from the state. The barbarian picked it and piled it outside the river bank. The coarse ore obtained outside is as big as pebbles. I don't know if there is jade in it, and I don't know if it is beautiful. Appraisers buy them at will and transport them to Dali and Yunnan Province. There is a jade workshop, seeing jade in the solution, and the land is rich! " This is the historical origin of the "gambling stone" transaction on the border between China, Myanmar and Thailand. In the history of China, the most famous gambling stone is "He Shi Bi". According to legend, a man named Bian He found a piece of jade in Chu two thousand years ago. Presented to the two monarchs of Chu, they thought they had been cheated and cut off his left and right legs. Bian He can't walk without legs. He cried for three days and three nights with Yupu in his arms. Later, King Wen of Chu learned about it. He sent someone to take the jade pu and let the jade worker cut it open. As a result, a gem-grade jade was obtained. This kind of gem is named "He Shi Bi". Later, this gem was owned by King Hui of Zhao, and Zhao Haoqi, the king of Qin, promised to exchange fifteen cities for this gem, which shows the high value of this gem. This gem was later carved into a national seal and was not lost until the Western Jin Dynasty. If Bian He could live to this day, he must be an outstanding master of gambling stones. In fact, it is very simple to measure the quality of a piece of jade. The first is its hardness and density. The hardness of jadeite is very high, generally reaching Mohs 7 degrees. The jargon of the jade industry is called "planting". Good "planting" means high hardness. Interview in Myanmar, Ruili, Yunnan, Tengchong and other places. I saw that jade sellers would take a piece of glass for experiments and carve their own jade rubble on it. As a result, deep scratches were left on the glass, but the jadeite rubble was not damaged at all. Good jadeite is almost as hard as diamond. The second is transparency, which is called "water head" in the jargon. The higher the transparency, the higher the quality. The best jadeite is like glass, which is called glass bottom in the jade industry. If the skin doesn't show green at all, only the green at the opening, then its price should be lower than the actual price. This is the general basis and principle of evaluating high-grade jadeite raw materials, and there will be no big deviation in evaluating jadeite raw materials according to this method. The quality of jadeite raw materials is changeable, and there is no fixed judgment mode. It is a completely peeled and flawless jade, which may change greatly after cutting. Therefore, the valuation of jadeite raw materials is very practical. Only by seeing more, buying more, thinking more and collecting more can we understand the law of jade price. In addition to the gambling stones of jadeite, there are also gambling stones of tree-shaped jade in Myanmar. Trees turned into jade 200 million years ago. Generally, tree-shaped jade is skinned, and the quality of its jade layer can only be seen by peeling off the skin. Buying Shuhua jade wool is actually a gambling stone. Sometimes it is lost, and sometimes it is a hundred times higher, which requires strong professional knowledge. The picture is provided by Gambling Stone Culture Research Association of Jewelry Committee of China Business Federation.