How was the stone gambling at Yunnan Ruili? Was the probability one in a hundred?

Yunnan Ruili is a border city located in the northwest of Yunnan Province in China. There are many beautiful natural landscapes and unique ethnic cultures. Among them, stone gambling was considered a major feature of Ruili and was also known as the "stone gambling world". Stone gambling was an ancient tradition where players searched for minerals that could be cut into gems from the mined ores. This kind of game usually required luck, skill, and experience, and there was a certain amount of risk. Although the probability of stone gambling was difficult to calculate accurately, the risk was usually very high. The risk of gambling in Ruili was greater because the quality of the ores mined there was very good and the gemstones were very beautiful. However, players still needed to do some preparatory work, such as understanding the texture, color, shape, and other characteristics of the ore, as well as master some cutting skills. In addition, players also needed to have enough patience and confidence, as well as the ability to withstand risks. Although the probability of stone gambling was difficult to calculate accurately, the risk was usually very high. Therefore, I don't recommend players to try gambling on stones to avoid unnecessary losses.