About Harold Diamond
Lived 1926 – 1982 (aged 55–56). Harold Diamond was an American art dealer.
Harold Diamond (1926–1982) was an American art dealer. Diamond worked as a teacher in New York City's public school system, later becoming an art dealer specializing in 20th-century work. He worked as a private dealer, negotiating for the discreet sale of works of art from their usually European owners to buyers who were typically American, and was known for his refusal to reveal the names of either sellers or buyers.
Diamond and his wife Hester Diamond (; 1928–2020) assembled "one of the great postwar collections of modern art in New York". Their son Michael Diamond (Mike D) is a musician, and a founding member of the Beastie Boys.
Don’t just read it —
keep it.
Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.
- E-book
- Audio
- Video
Instant download · yours to keep · every purchase keeps this site free
Important facts
Family & relationships
People in Harold Diamond's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Harold Diamond's
Frequently asked questions
Who was Harold Diamond?
American art dealer
When was Harold Diamond born?
Harold Diamond was born in 1926.
When did Harold Diamond die?
Harold Diamond died on 20 November 1982 in New York City.
What was Harold Diamond's occupation?
Harold Diamond was an art dealer.
What nationality was Harold Diamond?
Harold Diamond was American.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Harold Diamond. https://biography.guide/harold-diamond/
MLA: "Harold Diamond." Biography.guide, https://biography.guide/harold-diamond/.
Chicago: "Harold Diamond." Biography.guide. https://biography.guide/harold-diamond/.
Data last updated: 2026-09-22 · Spot an error? Report a correction.
Page generated 2026-09-27 05:16 UTC