Rio Tinto sets a new record for rare red diamonds from its Argyle Diamond Mine
17 May 2013 For the first time in the 30-year history of the Argyle Diamond Mine, Rio Tinto will be showcasing three Fancy Red diamonds at its annual Argyle Pink Diamonds Tender, the world’s most exclusive sale of rare diamonds. Debuting at a world exclusive preview in Sydney, the three red diamonds from the Argyle …