Cut

shape of a polished diamond

Carat

unit of metric measurement used for diamonds

Color

degree of color of a diamond on D (colorless) to Z (light yellow) scale

Clarity

internal and external characteristics of a diamond

Make

quality of a diamond’s cut, polish, and symmetry

Report

gemological certificate

Fluorescence

light emitted from a diamond when the stone is exposed to UV light; often a blue hue