Diamond CutMost people confuse cut with the shape of the diamond. Cut refers to the dimensions of the diamond (the depth, width, table, girdle, etc., ). Diamonds can be cut to maintain weight (usually fair to poor cutting) or to maintain brilliance and light. Diamonds cut to near perfect proportions get the maximum brilliance, fire, light and scintilation.
The cut directly attributes to the brilliance and fire of the diamond. The reflections and refraction of light within the stone is determined by table % and depth % for the most part. If the stone is cut to ideal specifications most light entering the stone will reflect back from the crown.
The polish and symmetry are two other important attributes of a diamond. They directly affect the sparkle of the diamond. The symmetry refers to the way the facets are aligned on the diamond. If the facets are not symmetrical the light will be misdirected thus making the stone duller. The polish of the stone refers to the smoothness of the facets. If the polish is dull the sparkle is reduced.
Each diamond can be put in one of the following cut categories: