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.Brisbane diamond company anatomy of a diamondA 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.


The symmetry grading of a diamond refers to the exactness of the shape and facets arrangements.  Although to your naked eye finish features only have a very small effect on appearance, symmetry is significant.

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Diamond polish is an important attribute to consider when purchasing a diamond as it influences how well light is able to pass through the diamond and therefore determines its’ overall brilliance.Read More


Fluorescence is the visible light some diamonds emit when they are exposed to invisible ultraviolet (UV) rays. In most cases, fluorescence does not negatively impact the diamond.Read More