Art dealer and writer, Martin Diamond (b. 1924) owned Martin Diamond Fine Arts, Inc. with his wife, Harriette. The gallery was established in January 1976 and operated until 1986, specializing in pre-world War II American modern and Abstract Art. It then became a private gallery operating until 1996, when the couple retired. Martin Diamond was particularly interested in Transcendental Art, an area of Abstract Art focused on the artwork's spiritual qualities. His writings include Who Were They? My Personal Contact with 35 American Modernists Your Art Hisory Course Never Mentioned (1995) and his memoirs of his years as a New York City art dealer (1975-1985). Martin and Harriette Diamond presently reside in New Rochelle, New York. Artists represented by the gallery included Vaclav Vytlacil, Blanche Lazzell, and Marguerite and William Zorach.