Diamond Table Size – is the length of the table of a diamond located at the top in the crown of a round brilliant diamond.
Girdle Thickness – is the thickness of the girdle, located at the side of the diamond where the upper girdle facets and lower girdle facets meet.
Crown Height – the measurement from the girdle to the table of the diamond.
Pavilion Depth – the measurement from the girdle to the culet (bottom tip of the diamond) of the diamond.
Total Depth – Crown Height plus the Pavilion Depth
Crown Angle– is the angle of the crown relative to the girdle.
Pavilion Angle – is the angle of the pavilion relative to the girdle.
Culet– bottom tip of a diamond.
Star Length– the length of the star facet located at the crown.
Half Facet Length – length of the pavilion facet.