CLARITY / PURE
In order to be able to grade the clarity of a diamond, it is necessary to determine the number of inclusions (impurities) and its character. The size and position of the inclusions are also important. This analysis is done through the trained eye of the diamond dealer or in laboratories under a microscope. A diamond is 'IF' (internally flawless) when no defect is found under a 10x magnification. An inclusion is called a 'Pique' when it is visible to the naked eye. This is very detrimental to the value, as it would jeopardize the exclusivity of the diamond as a rare commodity. As more inclusions are present, a diamond is divided into the following grades: Flawless (IF), VVS1, VVS2, VS1, VS2, SI, Pique1, Pique2, Pique 3.