When diamond shopping,
remember the Four “Cs”
Carat is the gemologist’s standard of measure of a diamond’s weight. Diamonds weighing less than 1 carat are referred to as fractions or points. There are 100 points to a carat. But size alone is almost meaningless unless you consider Cut, Clarity and Color. However, size does increase the value of a good quality diamond for the simple reason that large diamonds are rarer than small diamonds.
The brilliance of a diamond is in direct conjunction to the cuts and proportions of a diamond. With proper cutting the light passes through the top, giving the diamond optimum brilliance and fire. Shallow cuts result with light passing through the bottom of the diamond. With deep cuts, light passes through the side of the diamond in both cases maximum brilliance is inhibited.
The purest and rarest diamonds are virtually colorless. Although many diamonds may appear colorless to the untrained eye, the majority contain very slight traces of yellow, brown and gray. Color quality being critical, a stone’s beauty and value usually increased dramatically the more colorless it is.
The spectrum ranges from totally colorless, “D” to light yellow “Z”.
A diamond’s clarity is graded under 10X magnification by determining the size, color and location of the most prominent inclusion. The inclusions get smaller and smaller until you get to internally Flawless (IF) and Flawless (FL) which have inclusions that must be viewed of higher than 10X magnification.