Diamonds are graded by the carat weight, the clarity or presence of imperfections, the color and the cut. The Gemological Institute of America has established a clarity grading scale that ranges from flawless to imperfect, with varying degrees in between.
VVS stands for "very, very slight" and means that a diamond is very, very slightly "included." A VVS inclusion, or blemish, is only visible to a trained eye under 10 times magnification. VVS-1 clarity indicates that a stone has only a single inclusion. VVS-1 diamonds are slightly less perfect than flawless diamonds and are among the best diamonds available.
VVS-2 diamonds are also considered among the best diamonds on the market, but they have more than one internal flaw or blemish. These inclusions are very tiny. Even VVS-2 diamonds are flawless to the naked eye.
Other Clarity Grades
After flawless diamonds and very, very slightly included diamonds, there are two levels of VS, or very slightly included diamonds. VS diamonds also are flawless to the naked eye. Additionally, there are two levels of SI, slightly included diamonds and three levels of I diamonds, or imperfect grade. I grade diamonds have many flaws that are visible to the naked eye.
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