Firestone Diamonds plc announced the appointment of Stuart Brown as an Executive Director of the company with effect from 2 September 2013. Tim Wilkes, the company's current Chief Executive Officer, will stand down from his role on 30 November 2013 and Stuart Brown will assume the role of CEO from 1 December 2013. Tim Wilkes will remain with the company as an Executive Director.

Stuart is a former Joint Acting CEO, and Chief Finance Officer of the De Beers Group having been an employee for 20 years; and Tim Wilkes, incumbent CEO of Firestone, is to remain at the company as an Executive Director. In August 2010, subsequent to the De Beers Group CEO leaving, Stuart was appointed Acting Joint CEO to run the entire De Beers Group in tandem with his CFO duties.