are four main factors which determine the value of the diamond studs.
They are: Size (Carat weight), Cut, Color and Clarity. Often
they are referred to as the "Four C's".
weight is expressed in carats. Carat weight is the easiest
of the four C's to determine. To get the exact weight, however,
the diamond must be loose. One carat is divided into 100 "points"
so that a diamond of 50 points is described as a half carat in size,
or 0.50 carat. Within common weight ranges, there is
little or no variation in per-carat price.