Though Valli is about to touch his 50s, he has not revealed anything about his love and married life yet. It seems like he is till single and is not married till date.
Valli was influenced by Rome’s arts and its fashion. With a dream to pursue his career in fashion he joined the Istituto Europeo del Design of Rome in 1986 and then the following year, he also took a foundation course in illustration in London. After he came back from London, he began working in the studio of Roberto Capucci as an assistant. There his work was focused on dramatic Haute couture clothes and the bursting colours of the Roman master. From 1995, he began working as a Senior Designer for Krizia womenswear.