Diego trained at L'Ecole Superieure d'Arts Graphiques in Paris, gaining a BA (Hons) in Interior Design. 1999 saw Diego relocating to London to study at the Slade School of Art where he successfully completed his MA in Theatre Design. In 2001 he was selected for the Linbury Prize and his design, for Katya Kabanova for the Welsh National Opera, placed him amongst the finalists.

Commissions to date include:This Piece of Earth for Ransom Productions (Belfast).Martin Guerre, Donkey Hoo-Ha, Hot Mikado, The Snow Queen, The Odyssey, The Shed, The Gilded Lilies, 20,000 Leagues Under The Sea for the Watermill theatre. Jungle Book, A Midsummer Night's Dream, Madame Bovary, The Sleeping Beauty, A Long Time Ago and Return to the Forbidden Planet for the Northampton Royal Theatre. The Waiting Room, Rhinoceros, Todd! for Kabosh Theatre (Belfast). The Jerico Stone for Absolute Theatre (Kingston, Jamaica). The Prince and the Pauper for LCB choreographed by Irek Mukhamedov and Can't Pay? Won't Pay! and Arsenic & Old Lace for Derby Playhouse.