Swarovski has announced the 15 designers who will make up its newly extended, year-long Swarovski Collective, marking the programme's 15th anniversary.

The designers will work in partnership with the Austrian brand for their spring/summer 2015 and autumn/winter 2015 collections, shown during New York, London and Paris Fashion Weeks. Established names including Mary Katrantzou, Rodarte and Masha Ma are joined by first timers including Nonoo, Marques Almeida, Ashley Williams and Iris Van Herpen.