Rio Tinto proudly announced its 2021 Argyle Pink Diamonds™ Tender collection of 70 rare pink and red diamonds delivered the most significant set of record-breaking results in its 38-year history. Just like the first Argyle Pink Diamonds Tender was held in Antwerp in 1984, the most anticipated diamond sale in the world had its final curtain call after 38 years in the city of diamonds, Antwerp.