The mine is also famed for its pink diamonds.

This morning there was a huge pink diamond in Lam's tiepin.

Inside what had been the rock, Laura discovers a small pink diamond.

It is the only known significant source of pink diamonds, producing over 90% of the world's supply.

There are yellow diamonds and brown ones, blue ones, even pink.

Grain lines are commonly seen in pink fancy diamonds.

"He sold them pink diamonds and a bunch of pearls that were worth more than a Rembrandt at the time."

The case, it seems, has something to do with a cache of rare pink diamonds.

The background is a pink fluorescent diamond in a black room.

The Argyle diamond mine is the main source of rare pink diamonds.