Pink diamond collection set to fetch millions with rush to invest following Argyle mine closure

A private collection of rare Australian pink diamonds is expected to fetch up to $18 million when it goes up for sale next week.

Only months after the closure of the Argyle diamond mine in the East Kimberley, an Australian online start-up is offering the first known public tender of the iconic pink gems which closes July 1.

The collection of 33 pre-owned stones includes a two-carat vivid pink, which alone is estimated to be worth up to $2.5 million.