Cut
The way a diamond is cut, it's shape, as well as symmetry, and proportions, has a direct influence on the brilliance of a diamond.  The arrangement of a diamond’s facets. It determines the optimum combination of brilliance, dispersion and scintillation. Cut is the only “C” that can be controlled.

Color
Diamonds range from colorless – the rarest and most valuable - to yellowish, with a spectrum of shadings in between.

Clarity
Most diamonds contain tiny natural marks called inclusions. The number of inclusions, their size and location all effect the diamond's clarity grade.

Carat-Weight
Diamond weight is measured in carats. Every carat is divided into 100 points. For example, a 25 point diamond is 1/4 carat.