The Four C’s that are unique to each diamond determines the quality and value of a finished diamond.
The Cut is the most vital of all characteristics in a diamond. The way a diamond is cut makes an essential contribution to its interaction with light. Diamonds have an exceptional capability to reflect and manipulate light to maximize their brilliance.
A skilled cutting allows the light to be dispersed and reflected as a rainbow of color, which gives a diamond its incredible brightness, fire and scintillation. Diamonds that are cut incorrectly lose light through the sides or bottom of the diamond resulting in a poor, less brilliant diamond.
Cut grading is determined by looking at a diamond’s overall face-up appearance, fire, brightness, scintillation, weight ratio, durability, polish and symmetry. The cut grade varies from excellent to poor cut.
GIA Cut Scale
Excellent | Very Good | Good | Fair | Poor