Australia's rare pink-diamond mine formed from the clashing and stretching of continents, a new study found. The discovery could lead to more colorful diamonds.

• A study found that Australia's tectonic plates stretched, creating large deposits of pink diamonds.
• Pink diamonds are made under extreme pressure when two continents collide. 
• The scientists hope that understanding this will help them find new hotspots for colorful diamonds. 

The world's largest source of natural pink diamonds, Australia's Argyle mine, closed in 2020. However, researchers think they have an idea of where to find more rich sources of pink diamonds. 

Turns out, pink diamonds form under even more intense conditions than traditional clear diamonds. And understanding those conditions could help diamond miners identify new sites.