Whilst all diamonds share particular structural features, every diamond is unique. A diamond’s basic structure, or anatomy, determines its proportions, brilliance, dispersion and scintillation. Each of these parts have a specific name and we will provide you with a basic understanding of how each of these parts contribute to the diamond as a whole.
A diamond is comprised of eight main components and a brief description of each part is below:
Girdle Diameter: The diameter is the width of the diamond measured girdle to girdle.
Table Size: The table is the top horizontal facet of the diamond. The average table size is expressed as a percentage of the diamond’s average girdle diameter.
Depth: The diamond’s overall depth from the surface of the table to the culet.
Pavilion: The pavilion is the lower portion of a diamond from the bottom edge of the girdle to the culet.
Crown: The crown is the upper portion of the diamond, from the top edge of the girdle to the table.
Girdle: The girdle is the middle portion of a diamond, a narrow section separating the crown from the pavilion, and is used as the diamond’s setting edge. The girdle thickness is described as a range from its thinnest to thickest areas.
Culet: The culet is the small facet at the bottom of a diamond intended to prevent chipping and abrasion to the point. The preferred culet is not visible with the unaided eye (graded “none” or “small”).
We believe it’s important to have a basic understanding of the anatomy of a diamond before making a decision about which diamond is the best one for you.