Unapologetic is a song on Rihanna's album Umbrella.
`` Diamonds '' is a song recorded by Barbadian singer Rihanna for her seventh studio album , Unapologetic ( 2012 ) . Unapologetic is the seventh studio album by Barbadian singer Rihanna . It debuted at number one on the US Billboard 200 with first-week sales of 238,000 copies , becoming Rihanna 's first number one album on the chart and best-selling debut week of her career . The album produced seven singles including the international hits `` Diamonds '' and `` Stay '' .