We just finished this piece. The customer came to us with a design, selected the materials/colors they wanted at our supplierCrocodile Rocks and we fabricated it with our water jet machine. They were all 2cm thick material, but we milled the stone down to 1cm thick,so it would fit right up to their floor tile. Then we glued it all together and installed it in Bellingham, Washington. They chose 4 materials. Calacatta Vagli Antique, Verde Antiqua, Calacatta Gold and Black Galaxy granite. It turned out really beautiful!