To take good care of your facial skin, it is imperative to remove dead skin cells and dirt from the skin surface. Diamond polishing is an effective way of “sanding” away dead skin cells and other debris from the surface of the skin. It is done with the help of microdermabrasion devices with diamond tips. Diamond polishing is a completely safe and non-invasive treatment. It simply involves mechanical exfoliation to remove unwanted skin surface along with excess oil and dirt.