Clarity is a measure of the number of the flaws in the diamond as well as how visible they are and their affect on the diamond’s overall quality. The characteristics that determine a diamond’s clarity can affect its sparkle and brilliance. The flaws that diamonds can often have are often referred to as inclusions. The inclusions of a diamond range from white and black dots on the surface of the stone to small cracks within in the stone and crystalline growth within the diamond. If you are searching for something such as diamond stud earrings where the diamonds will most likely be even more visible than that of a ring, a higher clarity on the diamonds may be wanted to achieve a brighter sparkle.
The GIA has a grading scale regarding diamond clarity, and it goes off specific criteria that are used to differentiate between grades.
FL: Completely flawless.
IF: Internally flawless; only external flaws are present, which can be removed by further polishing the stone.
VVS1-VVS2: Very Very Slight Inclusions. Only an expert can detect flaws with a 10x microscope. By definition, if an expert can see a flaw from the top of the diamond, it is a VVS2....