Isabeli Bergossi Fontana was born on July 4, 1983, in Curitiba, in the Paraná region of Brazil. She has two siblings; brothers Harrison and Heric. By the time she was merely 12 years of age, Isabeli told her mother that she wanted to become a model.In 1996, she was a finalist in an Elite Model Look Contest in São Paulo, and the following year, at the age of only 14, she traveled from her native Brazil to Milan, to start working as a model.