It's all broken diamonds. The main drill is 4 points, and the surrounding seven drills must be less than 4 points. The price of 1700 is similar. Only diamond rings with a score greater than 20 will be scored, and some diamonds will be proved to be vs or vvs. The price of a 20-cent bare diamond in Tianjin is 2000-3000, but generally diamond rings are calculated by the largest diamond.