Polishing Made Simple Polishing a gemstone to perfection is a very important step in gem cutting.  Colored gemstones have a range of hardness which requires a corresponding polishing disk.  NOW, students at my school can polish any hardness of colored stones using only one disk. I developed this disk to save time, money and to make the polishing process an easy experience.  This disk is very durable and leaves the facets clean (No Polish Marks) and the facet junctions very sharp. This is a diamond bonded disk that requires no charging (No Maintenance). I look forward to showing you how easy it is to polish with this disk.