The so-called clarity of Mosan diamond refers to the amount of inclusions in Mosan diamond, which is what we call flawless degree. The clarity of Mosan diamond is divided into 1 1 grade. The higher the clarity grade, the higher the quality of Mosan diamond. Therefore, most consumers will choose the grade with higher diamond clarity, such as FL/IF grade. At present, the clarity of Mosan diamonds can only be achieved by the Magic Star diamonds of the Diamond Association, and the Mosan gems in the United States can only reach VVS 1/VVS2.