Click here to learn about hosting packages, including a FREE plan. The 4C's Cut Color Clarity Carat Weight Cut. When a diamond is cut to good proportion, light is reflected from one facet to another and dispensed through the top of the diamond. Diamonds can be cut to many different shapes, but it is the precise proportions to which the facets are cut that allow it to capture light and release its brilliance and fire. Click here for more information on Cuts .
Most diamonds used in jewelry appear white.
There are, however, subtle differences in color, and the closer a diamond is to being colorless, the more valuable it will be. Click here for more information on Color. Most diamonds contain inclusions such as mineral traces formed during the crystallization process. This is part of what makes each diamond unique. The number, size and position of the inclusions determine the clarity of a diamond and affect its value.