GEMMA is an elegant yet practical faucet control concept. Instead of levers, dials, or knobs, a single control element - the “jewel” is used to adjust water flow and temperature. By sliding the control “jewel” forward or backward, water flow is increased or decreased, while rotating it along that same axis controls its temperature. The core design elements consisting of the jewel and the axis it translates and revolves around can be applied to a variety of faucets in sinks, bathtubs, or other applications.

A simple widening slot shape in the main tube, along with “frigus” and “calidi”, Latin for cold and hot, visually suggest how to control water flow to the user. The Gem, which functions as the control interface, is a finely machined component of either a high-end metal such as titanium, or glass crystal, and serves as the focal point of the basin in which it is installed.