Since 1989, Diana Lowenstein has been part of the international art scene through her role as an active gallery owner and director, first under the name Der Brücke and later with Diana Lowenstein Fine Arts.

She began her career as a gallerist in Argentina, fomenting young local artists as well as organizing exhibitions of world-renowned foreign artists. Her art savvy as well as her relations with European galleries, resulting from her beginnings as an avid art collector, made it possible to represent grand masters such as Wifredo Lam, Roberto Matta and Antoni Tapies. One-man shows of their works were made available to an art-hungry clientele in Buenos Aires.