Part of Cartier's iconic Juste un Clou collection reintroduced in 2012, the CRB4229800 reimagines Aldo Cipullo's 1970s New York vision into a bold statement of modern luxury. Crafted in 18K white gold, the sculptural nail motif is twisted into an elegant oval form in the 2.5mm medium width. Weighing 9.5 grams, and finished with Cartier's signature high-polish, the seamless hinged design allows the ring to open and close without a visible clasp, achieving a perfect balance of architectural tension and wearable comfort. Hallmarked with Cartier signature, 750 gold mark, and individual serial number, it captures the rebellious spirit of turning the ordinary into the exceptional - hardware transformed into Cartier icons.