The Argyle mine in Australia has played an enormous role in the pink diamond market - both for better and for worse. On the positive, Argyle enormously boosted global pink diamond supply from the mid-1980s through 2020. For over 30 years, Argyle reliably delivered annual supplies of pink diamonds, when before, the discovery of any pink diamond was infrequent.At Argyle's peak in the 1990s-2000s, they supplied over 90% off the world's natural pink diamonds. Argyle became especially famous for their unique purplish-pink hue dubbed 'Argyle Pink'. Demand and prices for Argyle's pink diamonds steadily grew during the 1990s and 2000s as supply increased and consumers were exposed to more Argyle advertising campaigns.Yet on the negative, critics argue Argyle also commoditized pink diamonds to a certain extent. So much consistent supply over decades somewhat eroded the extreme rarity pink diamonds previously commanded. And while still very costly, Argyle's focus on their own brand name some believe diluted the value of untreated pink diamonds in general.Regardless, after abruptly closing their mine in 2020, Argyle's effect is still being felt. The loss of that massive supply source, while opening opportunities for others, did remove the most prominent producer - one that fundamentally shaped the pink diamond definition for a generation of jewelers and consumers.So in summary - For better or worse, 'Argyle' became nearly synonymous with natural pink diamonds due to their historic productivity and marketing. Argyle had an unmatched influence mass-introducing pink diamonds into mainstream commercial markets for over 30 years.