3D generative ring production allows us to reconsider the function of jewellery by using science, technology and design. Each ring belongs to a family of rings, that is, to a population of forms defined by mathematical systems similar to those in nature. The generative system design enables the production of unique and irreproducible ring forms, each printed in chosen material - noble metals, steel, alumide, glass, plastic. While traditional jewellery design is characterized by uniqueness, hand-craft and noble materials, contemporary jewellery making relys on mass production and synthetic materials. Generative ring design merges the qualities of both by digitally producing the jewellery for the 21st century.