Madonna wore Lydia Courteille diamond earrings and ring and Le Vian diamond rings while performing a tribute to Prince onstage at the 2016 Billboard Music Awards at T-Mobile Arena on May 22, 2016 in Las Vegas, Nevada. 
Madonna wore Lydia Courteille diamond earrings and ring and Le Vian diamond rings while performing a tribute to Prince onstage at the 2016 Billboard Music Awards at T-Mobile Arena on May 22, 2016 in Las Vegas, Nevada.