This fancy intense pink is 24.78 carats in size and is valued at $46 million. It was once owned by the legendary jeweller Harry Winston.

It was sold at auction by Sotheby’s in 2010 and is now owned by collector Laurence Graff. It has been described as one of the greatest diamonds ever discovered.

The origin of the stone, which is emerald cut and mounted in a ring, is unclear. It belonged to Winston in the 1950s before being sold to a private collector, who is thought to have kept it for more than 50 years.