For clarity, let's take a typical Diamond for an example, and see what happens when we take it through different clarity grades. Let's start with a 1.00 carat Diamond of G color and SI1 Clarity. It provides photographs and explanations of different Clarity Grades and the inclusions causing them. The color of a diamond has the second biggest impact on its price, after carat weight. Grading color in the normal range involves deciding how closely a stone's bodycolor approaches colorlessness.
Most diamonds have at least a trace of yellow or brown bodycolor.
With the exception of some natural fancycolors, such as blue, pink, purple, or red, the colorless grade is the most valuable. A fancy yellow diamond fetches a higher price than a light yellow diamond.