Rio Tinto prepares gifts for Oprah Winfrey’s audience

On the occasion of celebrating the 25th edition of the Oprah Winfrey show in Sydney, Rio Tinto has tied up to gift each of the 6,000 audience members with a white gold and diamond necklace. The necklace has been designed specifically for the audience of the show and comprises of seven diamonds in an O shape – including one rare pink coloured diamond from the miner’s Argyle Mine in Western Australia. This endeavour also coincides with the Argyle Mine's 25th anniversary of production, reports say.