A well-cut diamond reflects light to maximize the stone's brilliance. Cut has three components:

• Diamond cut grade: A standard grading report describes cut by the shape or outline of the diamond and the pattern of the facet arrangement (also known as cutting style).
• Diamond cut depth: Diamonds cut too shallow or too deep lose light through the bottom or sides, causing the stones to sparkle less.
• Diamond polish: A poor polish, or rough facets, can diminish a diamond's brilliance, as well as its value.