Near-colourless, slightly oily looking man-made material that is often used to imitate diamond – a diamond simulant.
Moh’s Scale
Scale from for classifying the relative hardness used for gemstones, based on the ability of harder gemstones to scratch softer ones. Moh’s scale ranges from 1 to 10, with 10 being the hardest. Diamonds are the only material on earth to rate as a 10.
Milky Diamond
Cloudy or hazy diamond with reduced transparency, brilliance, and overall life. A milky diamond can result from numerous factors, for example a dense cloud or extremely strong fluorescence. Click here to learn more about transparency.
Melee
Master Set
Marquise Cut
Diamond cut or shaped into an oval with pointed ends. Also called a ‘navette,’ which is the French word for “little boat,” as the shape is similar to that of a boat’s hull.
Make
Qualitative description of the overall cut quality of the diamond, taking into consideration the proportions and finish.
Lower-Girdle Facets
Loupe
Hand held magnifying lens. Diamond clarity must be graded with a 10x loupe that is corrected for spherical and chromatic aberration.