Diamond was born in Queens, New York City. He earned his Bachelor of Arts from
Columbia University and both his Doctor of Medicine and Doctor of Philosophy in Cell and Developmental Biology from
Harvard Medical School and
Harvard University. He completed his residency in internal medicine and fellowship in infectious diseases at the
University of California, San Francisco, followed by postdoctoral training at the
University of California, Berkeley. In 2001, Diamond established his laboratory at Washington University School of Medicine, where he currently holds the position of Herbert S. Gasser Professor of Medicine, Molecular Microbiology, and Pathology & Immunology. Diamond is also the associate director for the Andrew M. and Jane M. Bursky Center for Human Immunology and Immunotherapy Programs. ==Research ==