Diameter 平均直径=（最小直径+最大直径）/2

Depth/Total Depth% 深度比=总深/平均直径

Table Size% 台面比=台面平均直径/平均直径

Crown Angle 冠角度；冠部的八个斜角的平均度数

Crown Height% 冠高度=冠高/直径

Pavilion Angle 亭角度：亭的八个斜角的平均度数

Pavilion Depth% 亭深比=平均亭深/平均直径

Star Length 星面比

Lower-Half Length 下半长：8个下半面的平均值

Gridle Thickness 腰厚度

extremely thin, very thin, thin, medium, slightly thick, thick, very thick, and extremely thick

Culet Size 亭尖：钻石的底部刻面，有时会没有
 none, very small, small, medium, slightly large, large, very large, and extremely large