Trunfio was the winner of the third installment of the Australian television series Supermodel of Australia in 2002 and came second in the international version, Supermodel of the World. She has modeled for various Australian as well as international designers including Chanel, Dolce & Gabbana, Versace, Christian Dior, Gucci, Fendi, Missoni, Roberto Cavalli, Vivienne Westwood, Valentino, Victoria's Secret, Sweetface, and Neiman Marcus. She has appeared in campaigns for Karl Lagerfeld, D&G, Sonia Rykiel, Lacoste, Sisley, Anne Taylor, BCBG Max Azria, Chadwick's and Guess. Trunfio has worked with photographers such as Richard Avedon for Kenneth Cole campaign, Patrick Demarchilier for Harpers Bazaar, Steven Klein for D&G campaign, Peter Lindbergh for Italian Vogue, Terry Richardson for British Vogue, Greg Kadel, Melvin Sokosky, Russel James, and has been the face of Ulta.