Cut

The way a diamond is cut and polished is vital. It is the precision and delicacy that dictates the maximum amount of light the diamond will refract and reflect. The better it has been cut, the greater will be its brilliance, sparkle and fire.

When a diamond is cut to good proportions, light is internally reflected from one facet to another and then dispersed through the crown, or top. See (a).

If the cut is too deep, then some light will escape through the opposite side of the pavilion, or bottom, of the diamond. See (b).

If the cut is too shallow, then some light will escape through the pavilion, or bottom, before it can be reflected. See (c).

A well cut diamond is comprised of facets with the correct angles, perfectly placed to maximize the diamond's brilliance. It is the quality of the cut and its final polish that unlocks the hidden beauty.

There are many shapes and sizes of diamonds. But whatever the shape or size, the cut is the only human element. A well cut diamond will have more value than the one which is not.