Rio Tinto unveils the Argyle Alpha – the largest Vivid Pink diamond
Rio Tinto is auctioning the Argyle Alpha, the largest Vivid Pink diamond in the history of its Argyle Pink Diamonds Tender. Anglo-Australian multinational Rio Tinto, one of the world’s largest metals and mining corporations, has unveiled the largest Vivid Pink diamond in the history of its Argyle Pink Diamonds Tender, during a world exclusive … Read more