Diamond polishing this is a natural process of polishing marble and other natural stone floors to replenish and restore the factory finish shine to the floor. This is achieved by passing diamond abrasives normally starting with a medium grit diamond over the floor. This will remove light scratching, superficial scratches and minor etching. We normally employ diamond polishing as part of our nine stage programme for floor restoration which begins with diamond grinding, but where the floor condition affords it we often find that it is sufficient as a standalone treatment and enough to remedy tired and dull marble and natural stone floors.