Cast stone masonry is a refined architectural concrete building unit, manufactured to mimic natural cut stone and used in unit masonry applications. Cast stone can be made from white and/or grey cements, manufactured or natural sands, carefully selected crushed stone, or well graded natural gravels. Mineral coloring pigments are added to achieve the desired color and appearance while maintaining durable physical properties which exceed most natural cut building stones. Cast stone can be made to appear nearly indistinguishable from natural cut limestone, brownstone, sandstone, bluestone, granite, slate, keystone, travertine and other natural building stones.