£16m diamond up for auction

Last updated at 08:25
The world's largest flawless diamondAP

The world's largest flawless diamond is being auctioned off today in New York.

And it won't be cheap - it's expected to sell for more than £16 million!

It's a very rare 100-carat diamond without anything wrong with it.

It's part of a larger sale of other rare stones, including emeralds and sapphires.