Girdle

The outer edge of a cut stone, the dividing line between the crown and the pavilion. Sometimes the girdle is polished and sometimes it is unpolished. Ideally the width of the girdle should be even and proportional to the cut of the stone.

Fluorescence

Diamond fluorescence, in its most simple form, is the effect that ultraviolet (UV) light has on a diamond. When you stand under a blue light or ultraviolet light, sometimes you can see your whites get brighter or your teeth appear to glow. This is the same effect the...

Fire

The appearance, or extent, of spots of light dispersed into spectral colors seen in a polished diamond when it is viewed face-up.

Finish

Describes the exterior of the diamond. If a diamond is well polished, it has a very good finish. Re-polishing a diamond can sometimes enhance its color appearance.