Fournié initially decided to study medicine and took a degree in Biology. After two years he changed career to study fashion, continuing his studies at the Ecole de la Chambre Syndicale de la Couture Parisienne graduating in 2000. On his graduation day, Paris Fashion 2000 awarded him with the Moet & Chandon Prize for best accessories. During those three years of study and the apprenticeship, he worked at fashion houses to develop his skills. After an experience at Nina Ricci, he moved to Christian Dior, where he worked on accessories with Jean Mouclier, then at Givenchy haute couture.