Clarity is the relative freeness from inclusions. The cleaner a diamond , the better is its quality. IF and VVS Clarity grade sits at the highest end of the clarity grade chart. An IF and VVS diamond means that the diamond has none to minute inclusion which either is not visible or can be extremely difficult to see even at 10X magnification by a trained person.Diamonds with IF and VVS clarity are extremely rare and these diamonds with lower quality are also easily available. Hence are highly sought after by diamond lovers all over the world. Lower clarity grades such as VS, SI, significantly lowers the value of a diamond, since the inclusions can be easily seen, and they are also easily available.