Diamond Cut, more than any other quality aspect, gives a diamond its sparkle. A diamond gets its brilliance by cutting and polishing the diamond facets to allow the maximum amount of light to be dispersed back.
AF: Affinity Ideal
VG: Very Good
Polish refers to the quality of the diamond's surface and includes such features as nicks, polish lines and abrasions.
Symmetry refers to the exactitude of the shape and alignment of the facets.
Fluorescence is not directly related to a diamond's color. This separate characteristic refers to the diamond's ability to fluoresce under ultraviolet (UV) light.
The fluorescence of a diamond is defined by its intensity as either None, Faint, Medium, Strong, or Very Strong. Although fluorescence is a characteristic that can be measured, it is rarely an issue when selecting a diamond and is usually not detectable to the eye.