Select a cut grade:

Excellent/Ideal cut: A diamond cut to extremely exacting proportions of depth, diameter, and angles, allowing for maximum brilliance (white light returning to the eye), dispersion (the play of colors you see in a diamond.s reflections), and scintillation (sparkling flashes that are seen when the stone, light source, or the viewer moves). Diamonds with an Ideal cut grade are much rarer and more expensive than diamonds with a Very Good or Good cut grade. Represents roughly the top 3% of diamond quality based on cut. Reflects nearly all light that enters the diamond. An exquisite and rare cut.

General Description: Cut Grading Systems analyze the light performance of a faceted diamond and measure the light rays traveling through all the facets in 3 dimensions instead of 2 dimensions. And the cut grade rating determines the quantity and quality of light being returned to the viewer. In addition to proportion, symmetry and polish, brightness, dispersion, leakage, contrast and spread are also considered when assigning the final cut grade. Laboratories use the following attributes of a diamond to help determine the cut grade: depth %, table %, crown angle, pavilion angle, star length, girdle, polish, symmetry, and culet size. The Polygon Cut Grade feature applies to the standard round brilliant diamond cuts across all clarity ranges from the D-to-Z color-grading scale.