High Quality Content by WIKIPEDIA articles! Robert Edward "Bob" Diamond, Jr. (born Holyoke, Massachusetts, July 27, 1951) is an American banker, currently Group Chief Executive of British bank, Barclays Plc. He is also Chief Executive of Corporate Investment Banking and Wealth Management, comprising Barclays Capital, Barclays Corporate and Barclays Bank. Diamond is Executive Director of the Boards of Barclays Plc and Barclays Bank Plc and has been a member of the second largest British-based banking group`s Executive Committee since September 1997. He joined the firm in the summer of 1996.