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DIAMOND GRADING
Cut
Cut (not to be confused with shape) is the most important factor affecting beauty and brilliance of any of the
Four C's. It also the biggest cost determinant of any of the Four C's. The cutter's art is designed to make
the maximum use of light. Put simply, a diamond takes in light rays, bounces them around within the stone, and then
releases them as colors of the spectrum. The better the cut, the more vibrant these colors appear.
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Correct Cut
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Deep Cut
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Shallow Cut
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Don't confuse cut with shape. The rules for achieving brilliance, using correct angles
and proportions, are the same for any shape. Since non-rounds have less potential for
brilliance than rounds, it is in fact even more important to cut non-round shapes correctly.
Some popular diamond shapes include the following:
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