Diamond figures are a term used to describe the four measurements of a diamond: AVERAGES, basemen, carats, and umpires. AVERAGES refer to the average size of a diamond, which is usually measured in millimeters. Basemen refer to the base of the diamond, which is the widest part of the diamond. Carats refer to the weight of the diamond, which is measured in metric carats. Umpires and umpires refer to the cut of the diamond, which is determined by the angles and proportions of the diamond's facets.