She has been dating Saudi Arabian businessman Hassan Jameel for more than two years.
And Rihanna and her billionaire boyfriend enjoyed a romantic boat trip as they holidayed in Capri, Italy on Thursday.
The singer, 31, looked the epitome of style in a silk cheetah print Johanna Ortiz midi-skirt and gold cardigan as she boarded the jet boat with Hassan.
Rihanna showcased her lithe limbs in the green midi skirt, which was embellished with a vibrant African print, and diamond studded sandals.
Donning several statement rings and gold bangles, the Umbrella hitmaker tucked a khaki vest top into her skirt and tied the look together with green-tinted sunglasses.
She styled her long fiery red hair in soft waves and accentuated her radiant complexion with a minimal make-up look.
Hassan meanwhile was casually-clad in a black t-shirt, blue shorts and donned a white boat hat for their trip out to sea.
The couple appeared thoroughly relaxed as they strolled along the harbour and boarded the boat.
Rihanna and Hassan have been dating since early 2017, but like to keep their relationship out of the spotlight.