EX –the short form of EXCELLENT, top of the class of diamond cut grading, same meaning as PERFECT. A piece of diamond stone in its rough state is fairly unremarkable in appearance. You may not notice it even it is in front of you. It is the high quality diamond cutting skills which return it with the soul and let it sparkles in front of the crowd. The EX rating means the applying of the best available skills to bring the best light performance, proportion and finish characteristics to a diamond. Due to the strict requirements of EX grading, the number of EX rating diamond is very rare. This is why EX is so precious. The core of EX is to provide a perfect platform for world class beauty product suppliers to exhibit their valuable products, to meet with quality buyers and to complete the cooperation through our state-of-the-art B2B services.