Marble and other natural stones are expensive because they must be quarried, cut, and transported, often from overseas. Porcelain, on the other hand, is man-made from abundant natural materials like clay and sand, making it much more affordable. Plus, since it's easier to maintain and doesn’t require sealing, the lifetime cost of porcelain is significantly lower.
The washroom pictured above has a dark gray porcelain with a mixture of darker black, some lighter brown and white veining. This Italian Porcelain is rich in colour and looks sophisticated.