Bathroom Furniture and Sanitary Ware Design Diamante Ceramic Sanitarywares by Simone Valsecchi Stella product family is based on geometry, it was designed in a way to create a sense of symmetry and also asymmetry in the bathroom. Compared to other products in the market, the Stella series are highlighted with their unique form and aspects. The Stella product family is composed of a bidet, water closet and several bathroom sinks with different sizes.