Pink Star diamond fetches record $83m at auction
13 November 2013 Last updated at 23:46 GMT
A diamond known as the Pink Star has sold for $83m (£52m) at auction in Geneva - a record price for a gemstone.
The diamond measures 2.69cm by 2.06cm (1.06 inches by 0.81 inches) and is set on a ring.
The Pink Star was sold to Isaac Wolf, a well-known New York diamond cutter, who has renamed it the Pink Dream.
Imogen Foulkes reports from Geneva.