Chrome oxide polishing lap for faceting, which is perfect for your gemstones. Our high-quality green polishing lap is carefully fabricated using the finest raw material procured from the most authentic sources in the industry. Known for its durability, sturdy construction, and exceptional performance, this premium lap is widely used for lapidary polishing by artists over the world for polishing Emerald, Aquamarine, Beryl, Tourmaline, Tanzanite and other stones .