New research sheds light on the formation of rare pink diamonds

Pink diamonds formed when ancient supercontinents collided and then stretched apart, bringing the gems to the surface through volcanic eruptions.
The Argyle diamond mine in Western Australia was the source of over 90% of the world's natural pink diamonds before closing in 2020.
The age of the Argyle deposit was determined to be around 1.3 billion years old, 100 million years older than previously thought.
The unique conditions that produced the Argyle diamonds suggest potential for undiscovered pink diamond deposits, especially in Australia.
With the closure of Argyle, pink diamonds will likely become even rarer and more valuable.