How are Gems Cut and Polished?
Grinding. Grinding, usually with silicon carbide wheels or diamond-impregnated wheels, one side of a rotating or vibrating flat disk known as a lap, and it is used especially to create flat surfaces on a stone (as in faceting). Laps are often made of cast iron, steel, or a copper-bronze alloy, but other materials can also be used. Back to techniques. Polishing. After a gemstone is sawed Get Price