“Berbere was the first design I did that had the ability to become a new classic,” Gaia Repossi says of her first collection for Repossi, the Paris-based jewelry house that was founded in Turin, Italy, by her grandfather in 1957. She debuted Berbere in 2011, four years after she became the artistic director of her family business at age 21, and its signature elements—architectural geometry, dynamic asymmetry, impeccable mirror polishing, and juxtaposition of fullness and space—have since become defining features of the house’s aesthetic, and have been expanded into some 200 designs in four shades of gold.