(IDEX Online) - The final collection of pink and other rare diamonds from the iconic Argyle mine is to be sold, with bids closing on 1 September.It marks the end of an Tera for the deposit in the in the remote east Kimberley region of Western Australia, which has provided the overwhelming majority of pink diamonds globally since 1982.Seventy diamonds with a combined weight of 81.63 carats will be offered to an invitation-only elite of buyers at the 2021 Argyle Pink Diamonds Tender.The headline lot, (pictured) the 3.47-carat Argyle Eclipse, is the largest fancy intense pink diamond ever offered at the tender. Sinead Kaufman chief executive of the mine's owner, Rio Tinto Minerals, said: "I am delighted to launch this historic collection of extraordinary diamonds, a testament to the amazing Argyle ore body and the men and women who have worked so hard to bring these diamonds to market."In addition to the pink tender, 41 lots of Argyle blue and violet diamonds, weighing 24.88 carats in total, are also to be sold. Jewelry historian Vivienne Becker said: "This final epoch making offering of pink, red and blue diamonds encapsulates the near-impossible rarity and compelling beauty of the natural treasures gifted to the world by the east Kimberley region of Western Australia."