The price of diamonds all over the world has become transparent. The price depends on the 4C (size, color, clarity and cutting) of the original stone. The price of a diamond knows its 4C and basically knows its price. Moreover, the price of diamonds has a rising space of 10% every year. The size of diamonds is graded, and the prices of different grades of diamonds will vary greatly, which is basically based on complex diamond calculation methods. Make a naked diamond calculator that everyone can understand, and let everyone know more about the international diamond market.