[6][7] Her first modeling job was a 2011 Victoria's Secret spring advertisement.
[9] Diniz has walked the runway for Balmain, Calvin Klein, Prabal Gurung, Vivienne Westwood, Cushnie et Ochs, Rag & Bone, Kenneth Cole, Carolina Herrera, Hervé Léger, Jason Wu, Victoria's Secret among others.
[10][11] She has starred in ads for Tom Ford, Chanel, Ralph Lauren, Armani Exchange, 7 For All Mankind, Target, H&M, Clinique and Anne Klein.
[12] She has appeared in Allure, Cosmopolitan, V (magazine) and Sports Illustrated Swimsuit Issue among others.
[13] In Portugal, she was given the Globos de Ouro ("Golden Globe") award for "Best Female Model".