Cartier has made bank on the simple designs of screws and nails, first with the Love bracelet, then with the Juste un Clou, and most recently with the Ecrou.

This is available in white, yellow and pink gold. Cartier notes, “A transformation of the ordinary to the extraordinary: the new Écrou de Cartier collection. A bold new design, Écrou de Cartier embodies daring and limitless style. Forceful and exquisite at the same time, it makes a striking statement of sophistication.”

This white gold version sells for USD$7,050.