Which diamond mine's huge production influenced the world market in the late 1980s?

The Argyle diamond mine significantly impacted the world market in the late 1980s due to its vast production levels, particularly of pink diamonds, which were rare and highly sought after. Located in Australia, Argyle operated at a scale that allowed it to become one of the largest producers of diamonds by volume globally. By introducing a large quantity of diamonds into the market, Argyle influenced diamond pricing and availability. Its distinct production of fancy colored diamonds also created new markets and consumer interest in unique diamond colors, further shaping industry dynamics during that period. This mine's influence was so profound that even after its closure in 2020, the legacy of its production continues to affect diamond valuations and the popularity of colored diamonds today.