Johannesburg - Anglo American's Cynthia Carroll has been appointed new chairperson of the De Beers Societe Anonyme board, the company said on Wednesday."I look forward to leading the board and continuing to support the management of the world's leading diamond company," Carrol was quoted in a statement.She said the history between Anglo American [JSE:AGL] and De Beers had given her an appreciation for the diamond business."I am honoured to accept the role of chairman of this great company."Two other members of Anglo American's group management committee were appointed to the board.De Beers chief executive Philippe Mellier said the group was fortunate to have Brian Beamish and Peter Whitcutt joining Carrol on the board."Personally, I look forward to their continued counsel and leadership as we find new ways to enhance De Beers' leadership position across the diamond pipeline," said Mellier.The three appointments would take effect immediately.* Follow Fin24 on Twitter, Facebook, Google+ and Pinterest.