Born in Buenos Aires in 1927, Diyi Laañ began her studies at the University but quit them soon, committing to Literature.
In 1946 she integrated the Madí Movement, participating in its first exhibition. Her works formed part of the group representation to the Salon des Réalités Nouvelles held in Paris in 1948. She collaborated with poems, stories and paintings for Arte Madí Universal magazine.
Her works integrated the main anthological exhibitions of the group, particularly Vanguardias de la década de los 40. Arte Concreto-Invención. Arte Madí. Perceptismo at the Museo Sívori, Buenos Aires (1980), and Arte Madí, at the Museo Nacional Centro de Arte Reina Sofía (Reina Sofía National Museum Arts Centre, Madrid,1997), among others.
She also took part in Art from Argentina 1920/1994 opened at Modern Art Oxford, 1994, a travelling exhibition that after visiting several European countries, was closed at the Centro Cultural Borges in Buenos Aires, in 1995.
He dies in Buenos Aires, on August 22. 2007.