Very Small Inclusions (VS1) (VS2)
VS is the abbreviation for Very small inclusions. VS stones contain minor inclusions ranging from difficult (VS1) to somewhat easy (VS2) for a skilled grader to locate under 10x. Diamonds that are graded VS in clarity are still very impressive looking diamonds under a microscope. Of course nothing is visible at all to the human eye.
With these stones, we are still in a clarity grade that is "impressive" under a scope. For those of you who are going to be "picky" under a microscope, you may not want to consider going lower than a VS2. Just kidding, you don't have to be that way to appreciate VS clarity diamonds. For those of you who are a little more practical (financially speaking), we have one more classification to go before the imperfections get large enough to start being visible with the human eye.
Very Slightly Included category (VS) diamonds have minor inclusions that are difficult to somewhat easy for a trained grader to see when viewed under 10x magnification. The VS category is divided into two grades; VS1 denotes a higher clarity grade than VS2. Typically the inclusions in VS diamonds are invisible without magnification, however infrequently some VS2 inclusions may still be visible. An example would be on a large emerald cut diamond which has a small inclusion under the corner of the table.