An international bidding war is on for the world's rarest pink diamonds, as time runs out for the remote Argyle mine.
Christie's auction house sells the "Pink Legacy" diamond, described as the "Leonardo da Vinci of diamonds" for more than $US50 million including fees, saying it is a new world record price per carat for a pink diamond.
The Perth Mint unveils its new crown jewel — a collector coin celebrating Australian history that is encrusted with $1.7 million worth of diamonds and is the most valuable ever produced in the country.
A global miner hoping to revive the Kimberley diamond industry believes it may have discovered Australia's next big diamond field.
Rio Tinto unveils the largest vivid pink stone in the 34-year history of the Argyle Pink Diamonds Tender — one of the most exclusive diamond sales in the world.
They're impossible to tell apart with the naked eye and are one-fifth of the price of their natural counterparts, and synthetic diamonds are expected to continue to take over a larger part of the international gemstone business.
The Perth Mint reveals the world's first pavé set, Argyle pink diamond gold coin at the prestigious 47th World Money Fair held in Berlin.
Rio profit rebounds on stronger demand for iron ore and coal, lining shareholders' pockets with a big increase in interim dividends.