D

Depth
The distance between the table (top) and the culet (bottom) of a diamond or gemstone as measured in millimetres.

Diamond grading report
A formal document detailing a diamond’s unique characteristics, especially it’s cut, carat weight, colour and clarity, and may also include its finish (polish and symmetry), fluorescence and additional comments.  A diamond grading report is issued by an independent laboratory such as the GIA - Gemological Institute of America. These reports are numbered and are unique to each and every diamond graded.

Dispersion
The display of spectral colours emanating from a diamond as white light is broken-up when it enters the diamond.

FAQ categories: