Diagonal Design The Diagonal Design may be specified in either of two surface options — an embossed orientation (4 tiles on right) for a more rustic, textured surface — or a debossed orientation, (2 tiles on left) for a smoother, more “glassy” finish. Standard UltraGlas Colors Glass Edge Thickness: 5/16” Download PDF File of Catalog Page. Also See: Checkers Diamonda PopOver Tisket