Diamond Cut - What You Need To Know - Diamond Buying Guide

Cut

Of the 4C's, a diamond's cut has the greatest influence on its fire, sparkle and brilliance, making it, arguably, the most important C. Cut refers not only to the shape of a diamond, but more importantly to its proportions (how the diamond's angles and facets relate to one another), symmetry (the precision of its cut), and polish (the surface of the diamond).


A diamond's cut is harder to quantify than color, clarity and carat weight. The cut of a diamond is determined by the master craftsman, who formulates the best way to shape, facet and polish the diamond to maximize its beauty.


A diamond is essentially a prism of light, and diamond cutters work to let the most light shine through each stone. When done well, a diamond's cut can be the most important C.


When grading the cut of a diamond, laboratories evaluate the diamond for its:

BRILLIANCE:

The intensity of the white light that is reflected, both from the surface of the diamond as well as from the inside.


FIRE:

Also known as dispersion, it's how the light scatters through the diamond to create a rainbow of light, like a prism.


SCINTILLATION:

These are the flashes of white light that are visible when you move your diamond. These flashes are also known as "sparkle."

When a diamond is "Ideal-Cut," it means the angles and proportions of the diamond have been cut to produce the ultimate sparkle, fire and brilliance.



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