Made from one of Earth's most precious stones, Novatto's blue onyx vessel will add character and charm to your bath or powder room. These natural onyx vessels come from around the world to provide you with a one-of-a-kind masterpiece. Natural stone cannot be compared to everyday synthetic porcelain and ceramics. Honed and hand polished to perfection, this round 17-inch vessel is elegant and unique in tones of light blue and cream white. Because blue onyx is a product of Mother Nature, each sink will vary slightly in color and veining. They're designed for above-counter installation with standard U.S. plumbing connections. Suggested Novatto umbrella drains: UPD-MB (matte black), UPD-ORB (oil rubbed bronze), UPD-BN (brushed nickel), and UPD-CH (chrome). Since each sink varies will send a picture of the one we are sending prior to shipping for approval. For best cleaning results, a soft cloth with mild soap and water or a non-abrasive glass cleaner is recommended. A stone sealant should be used to help protect the surface and allow for easier cleaning. Novatto strives to provide a superior product with exceptional qualities and unique innovations that professionals and homeowners trust.