What are the four Cs of diamond evaluation, and how are they used to determine a diamond's value?

The four Cs of diamond evaluation are cut, color, clarity, and carat weight. These factors are used by diamond graders and jewelers to determine a diamond's quality and value. 1. Cut: The cut of a diamond refers to the way it has been shaped and the proportions of its various facets. A well-cut diamond will reflect light in such a way as to maximize its brilliance, fire, and sparkle. A poorly cut diamond will appear dull and lifeless. The cut is often considered the most important factor in determining a diamon....