With nature as both guide and inspiration, Novatto searches worldwide to select the most exquisite onyx for our master stone artisans to handcraft into these spectacular vessel basins. Honed and polished to perfection, each 17-inch round vessel is beautifully unique in tones of cream with gold veining. Because the onyx is from Mother Nature, each sink will vary slightly in color and veining. These sinks are constructed for above-counter installation with standard U.S. plumbing connections. For best cleaning results, a stone sealant should be used to protect the surface. Made with the highest standards of quality and creative design, Novatto sinks add art and function to any bath or powder room.