Rare, ancient and pink. The world's most valuable diamonds - BBC
Glimpse Into the World's Largest Pink Diamond
Largest ever auctioned' purple-pink diamond sells for $26.6m
What makes pink diamonds pink?
Why are pink diamonds so popular? From multimillion-dollar sales
Pink diamond could become most expensive ever at auction
Ultra-Rare Pink Diamond To Go Under Hammer In Geneva
Rare pink diamond gets nearly $35 million at auction
The World's Most Vivid Pink Diamond Just Sold at Sotheby's - Only
Pink Star diamond - the world's most expensive gem sells for $71.2