Color, Clarity and Carat Weight

Diamonds range in color from colorless to yellow. Even though most diamonds appear colorless to the untrained eye, the majority of diamonds contain traces of yellow or brown. The closer the stone is to colorless, the more valuable the diamond.

Most diamonds contain very tiny natural birthmarks known as inclusions. However, the fewer and smaller the inclusions are, the less likely they will interfere with the passage of light through the diamond, and the more beautiful the diamond will be. Diamond is nature's material that is most capable of producing a maximum amount of brilliance. A diamond that is free of both inclusions and surface blemishes is very rare and therefore more valuable.

This is the weight of the diamond measured in carats.  One carat is equal to 1/5th of a gram and one carat is divided into 100 ‘points', so that a diamond of 75 points weighs 0.75 carats. Carat weight is the easiest of the 4C's to determine. But two diamonds of equal weight can have very unequal value, depending on their cut, color and clarity.