Every diamond is unique and possesses it's own individual natural characteristics referred to as inclusions and described as "nature's fingerprints." Clarity is determined by the degree to which a diamond is free of these natural inclusions. The fewer the natural inclusions, the higher the grade and the greater the value of the stone. Most diamonds contain some inclusions (visible only through a 10x magnifying loupe). The number, size, position, nature and color of the inclusions determine the clarity of the diamond. Major inclusions can interfere with the path of light which travels through a diamond, diminishing it's sparkle and brilliance.