Cartier’s Juste un Clou collection dates back to the carefree 1970s, but its avant-garde approach is distinctly modern. It’s defined by a repurposing of the nail within the context of fine jewellery – a move that offers a sublime take on the ordinary with an outrageous edge. This ring is crafted from 18-karat yellow gold with a sleek rhodium finish, taking it far away from its humble inspiration.