Cartier Juste un Clou Nail Bracelet – 18K white gold, 1,752 brilliant-cut diamonds totaling 27.60 carats. About Cartier Juste un Clou Collection: A nail becomes jewelry. Designed in 1970s New York, the first Juste un Clou bracelet reflected a wild, freewheeling era. Bold, modern, and innovative, Juste un Clou is a creative twist on a familiar object. This jewelry collection …