Diamond Essentials Flashcards
To fine tune skills
The seperation of white light into spectral color is
Dispersion
On Marquises, pears, and hearts, the sides near the points are called
Wings
Pavilion depth percentage is expressed as a percentage of the
Average girdle diameter
The primary purpose of the cutlet is to
prevent chipping
The pavilion angle is the angle formed by the girdle plane and the
Pavilion main facets
AN unattractive gray ring under the table might be present in diamonds with
Shallow pavilions
A diamond that’s grade Flawless might still have:
Extra facet on the pavilion not visible face up
What is a result of the bearding process?
Bearding
Each letter in the GIA colour scale represents
A range of colour
The most common colour of Fluorescence in gem-quality diamond is
Blue
To colour grade a light yellow or brown diamond, graders compare it to a master stone for
Tone and saturation
