Of the 4C's, cut is the only one directly influenced by humans. The other three are dictated by nature. The cut, or make, of a diamond will dramatically influence its fire and brilliance when cut to a proper proportion. Diamonds, more than any other gemstone, are capable of reflecting light to produce the maximum amount of brilliance. It is the skill of the polisher that can release this astounding beauty. When a diamond is cut to proper proporions, light is reflected from one facet to another and then dispersed through the top of the diamond If the cut of the diamond is too deep, some light escapes through the opposite side of the pavillion, or bottom If the cut of the diamond is too shallow, light escapes through the pavillion, or bottom before it can be reflected.