These grades contain noticeable inclusions which are easily visible under 10X. Normally the inclusions will be centrally located and noticed immediately when the stone is examined under 10X. Stones in this grade will likely disclose inclusions to the unaided eye when placed table down on a white background, but not when viewed face up.
Note the large dark included crystal under the star facet at three (3) o'clock, and more numerous pinpoint inclusions.
This grade diamond is a very common, fine stone used in low priced jewelry.