Diavik Diamond Mines (DDMI) owns Rio Tinto's interest in and manages the unincorporated Diavik diamonds joint venture in the Northwest Territories of Canada. The project was completed well ahead of schedule and under budget. Initial production has commenced and the process plant commisssioned. Production will build up over the next two years with Rio Tinto's share of of production, of over 3.6 million carats per year, projected for 2005.