Terminology   Definition of Terms Table of Contents Encyclopedia Home Introduction The 4 C's Terminology Depth and Table Percentages How to use The Diamond Buying Guide GIA, AGS, & Commercial Grade Conversion Charts Round Brilliant , Brilliant, Old Mine Cut Pear and Oval Cuts Marquise Cut Heart Shape Princess and Radiant Cuts Emerald, Cushion, and Carre Cut Trillions Crown The upper part of the diamond, or anything above the girdle. Crown Angle Angle of the crown facets. Culet The point or facet on the bottom of the pavilion. Depth The measurement of the diamond from the table to the culet, expressed in millimeters. Facets The flat polished surfaces of a diamond. Girdle The rim around the diamond. The girdle is parallel to the table and is the largest diameter of the diamond. It divides the diamond into its two main sections, the crown and pavilion. Pavilion The lower part of the diamond, or anything that is below the girdle. Pavilion Angle Angle of the pavilion facets. Table The top facet.