This is the weight of the diamond measured in carats. One carat is divided into 100 "points", so that a diamond of 75 points weights .75 carats. This ancient weight has been used for centuries for diamonds, and has become the universal standard. I like to say about now that gross weight is one of the major factors for anyone choosing a fine diamond, but also one should never forget the geomery of the cut, and the beauty a well cut diamond unlocks by nature.

Carat-weight is the easiest of the 4 C's to determine. But two diamonds of equal weight can carry unequal value, depending on their cut, color and clarity. On the GIA certificates a notice informs that a poorly cut diamond can be discounted 25% or more, so be aware that weight is not the defining factor for picking your diamond.

Another thing to consider is that in a diamond which is cut too deep the diameter will be reduced. Many poorly cut diamonds are sold by others daily without explaining how attention to geometry in any given shape will always yield a better appearance and appeal.