After the glass is cut it has a particularly sharp and irregular edge, which is eliminated through a grinding operation (performed manually or by CNC machinery) which removes and evens the edge of the glass in different ways, depending on the request. Round shiny edge: the edge is rounded and shiny, the processing level is high. Flat shiny edge: the edge is shiny and perpendicular to the surface. Raw edge: it’s like the shiny edge but opaque.