Every diamond is unique. Its grade and intrinsic quality are usually judged by professional evaluators of diamond and printed on certificates later. The diamond is assessed and evaluated by the 4Cs which is its color, clarity, cut and carat. Once the 4Cs are decided, these would then determine its 5th C which is its cost.

Diamond color is rated by a standard set of guidelines given by GIA (Gemological Institute of America). A lettering system from D-Z is used to identify the amount of color present in each diamond. For