The story of the Victory Diamond up for auction in Geneva

Spring is in the air in Geneva this week. Daffodil yellow and hyacinth blue are the talk of the town, but in the wealthy Swiss city these are not flowers, but diamonds.

The Victory Diamond - which belonged to Florence Gould, daughter-in-law of the American railroad magnate Jay Gould - is estimated at $5-$8 million.

Imogen Foulkes has had a sneak preview of the jewel at Geneva's famous spring jewellery auctions.