Quatre de Boucheron, the “game changer” of jewelry. Twenty years ago, Boucher on launched a ring as precious as it was brutal.

And it’s still relevant today. For the 20th anniversary of its Quatre ring, the Parisian elite, from Pierre Niney and the top model Anja Rubik to the it-girl Alexa Chung and the DJ and host of the new fashion show from Canal+, Piu Piu. This article is reserved for subscribers. You have 83% left to discover.