STONE DIFFUSER BY BASIUMTHE STONE DIFFUSER designed and made by Maddalena Selvini for Basium in honour of nature and its natural forces. Crafted from stone dust, this unique diffuser is the product of a transformation process of sand becoming rock in nature. As stone debris is collected and exposed to high temperatures, it solidifies into Arena a material with an earthy, weathered texture and rich porosity, ideal for releasing fragrance. Inspired by the raw, automatic