Diamonds is a work.
`` Diamonds '' is a song recorded by Barbadian singer Rihanna for her seventh studio album , Unapologetic ( 2012 ) . It was written by Sia Furler together with its producers , Benny Blanco and StarGate . The song premiered on September 26 , 2012 , during the Elvis Duran and the Morning Show and was digitally released the following day as the lead single from Unapologetic . The American Society of Composers , Authors and Publishers ( ASCAP ) recognized it as one of the most performed songs of 2013 and 2014 .