Diago is one of Cuba’s most prominent and internationally known contemporary artists. In 1990 he graduated from Havana’s prestigious "San Alejandro" National Academy of Visual Arts. Since then Diago received numerous national and international prizes and awards. In recent years he has been regularly featured in solo and group shows throughout Cuba and Latin America as well as the United States, Canada and Europe. He is a member of the Unión Nacional de Escritores y Artistas de Cuba (UNEAC).
His works combine painting, collage and mixed media techniques. His themes frequently touch both on his identity as a contemporary Cuban, and as a man of African ancestry. Blending the old and the new, the rustic and the refined, the primitive and the urbane, Diago reminds of both his roots and his reality.
In 2002, Diago received the Award for National Culture, from the Cuban Ministry of Culture.
His artwork is part of the collection of the National Museum of Fine Art in Havana, Cuba; Gallery Guislain Etats D´Art, Paris; Kikoïne Foundation, Paris and Brownstone Foundation, Paris.