The upper part of the diamond above the girdle. Consists of a large flat area on top called a table, and several facets below it. Cu let The smallest facet at the bottom of the diamond. Cut can also mean shape, as in emerald cut or marquise cut. Proportions are the size and angle relationships between the facets and different parts of the stone.
Finish includes polish and details of facet shape and placement.
CZ Cubic zirconium. A widely used simulant, an imitation for a natural diamond. Emerald cut A step cut, usually rectangular. Extra Facet A facet placed without regard for symmetry and not required by the cutting style. Facet Plane, polished surface of a diamond.