Diadema is a lighting system based on a single element, the rod of pure glass. Design - Romani Saccani Architetti Associati, 2005. It takes advantage of the way it reflects and transmits the light, while offering a sense of movement by using rods of different sizes. The metal body allows to offer multiple variations and ample space for custom-made versions with concealed metal body, thanks to the fixing system developed for this collection.