It is said that the cut of a diamond dramatically influences its fire and sparkle.
This is because the amount of light that a diamond refracts and reflects is determined by the diamond cut. The more precision with which the diamond is cut and polished the greater the diamond’s brilliance.
Of all the “4C’s of Diamonds”, cut is the one most directly influenced by man. Diamonds can be cut to a number of shapes depending on the nature and grade of the rough stone.
A well cut diamond is made up of perfectly placed “facets” and angles to maximize the diamond’s sparkle. Therefore, a diamond that is cut to proper proportions holds more value (and sparkle) than a diamond that is not.
Well Cut Diamond – Good proportions of facets and angles allow light to enter the diamond and reflect from one facet to another before the light is dispersed back through the crown or top of the diamond.
Poorly Cut Diamond – If the diamond is cut “too deep” the light escapes through the opposite side of the pavilion or bottom and if the diamond is cut “too shallow” the light escapes through the pavilion before it is reflected.