In a virtual preview, Rio Tinto has showcased its 2020 Argyle Pink Diamonds Tender, entitled One Lifetime, One Encounter, one of the last of a series of annual tenders held since the exceptionally rare pink, violet and blue diamonds were first discovered in the Western Australian Argyle mine in 1979. This year's tender features 2.24ct Fancy Vivid Purplish Pink diamond, named Argyle Eternity, the largest Fancy Vivid round brilliant ever offered at the tender. Apart from 5 other lots featuring diamonds between 0.70ct and 2.45ct, the last but one tender features 12 lots of unique sets of miniature rare Argyle pink, red, blue and violet diamonds, dubbed the Petite Suites, of 13.90cts total weight. After the virtual viewings, invited buyers can view the stones at the Argyle mine, in Perth, Singapore, before ending in Antwerp with bids closing on December 2nd. Rio Tinto's Argyle, virtually the sole source of the rare pink diamonds, is set to close later this year, and next year's Argyle Pink Tender will be the last one.