The P758 butterfly blue granite vessel sink is made from natural granite. The sink is carved from a large block of granite and hand-polished for a smooth, easy to clean finish. This sink has a green-colored base with large deposits of blue and tan throughout. Since granite is a natural stone, the details will vary in color and pattern from sink to sink. A matching stone waterfall faucet is available to correspond with this sink. The overall dimensions for the 857 are 15 3/4" Diameter x 5 3/4" Height and an 18" minimum cabinet size is required. As always, our stone sinks are covered under a limited lifetime warranty for as long as you own the sink.