In New York, she debuted at the Marc Jacobs show and was subsequently picked up by clients.
In December 2003 she landed her first major cover for Italian Vogue, photographed by Steven Meisel.
Rianne has worked with several famous fashion photographers as Steven Meisel, Craig McDean, Patrick Demarchelier and Peter Lindbergh.
As a runway model, Rianne has walked the catwalks for designers such as Calvin Klein, Jean Paul Gaultier, Dior, Chanel, Yves Saint Laurent, Gucci, Prada, Miu Miu, Marc Jacobs, Donna Karan, Diane von Furstenberg, Versace, Roberto Cavalli and many more.
In 2014 she appeared in the music video for Lenny Kravitz's song The Chamber which was the lead single off his album Strut.