The process of insurance has been evolved to safeguard the interests of people from uncertainty by providing certainty of payment at a given contingency. The insurance principle comes to be more and more used and useful in modern affairs.
From Wikipedia, the free encyclopedia. Diamond clarity is a quality of diamonds relating to the existence and visual appearance of internal characteristics of a diamond called inclusions, and surface defects called blemishes. Clarity is one of the four Cs of diamond grading, the others being carat, color, and cut. Inclusions may be crystals of a foreign material or another diamond crystal, or structural imperfections such as tiny cracks that can appear whitish or cloudy.
So, if VVS is a better clarity grade, where does VS clarity have an edge? The answer is simple: price. A VS-clarity diamond will usually be cheaper than a comparable VVS-clarity one, and the difference can be as big as a couple of thousand dollars. Of course, a superior cut or color can make a VS diamond more expensive than a VVS stone, so you should also evaluate other quality characteristics.