Rio Tinto owns and operates the Argyle Diamond Mine in the remote East Kimberley region of Western Australia. The mine has been operating since 1983 and has produced more than 800million carats of rough Diamonds. It is one of the world’s largest supplier of Diamonds and is the world’s largest supplier of coloured Diamonds but most importantly is the world’s largest supplier of PINK DIAMONDS. We proudly stock the beautiful Diamonds from the Argyle Mine. Authenticated of course!