Cannes jewellery heist value 100m euros Authorities in France have revised the value of diamonds stolen in an armed robbery, making it one of the world's biggest jewellery thefts. The value of the stolen jewels has been raised to about 103m euros ($136m; £89m). An armed man seized the gems from an exhibition by the jeweller Leviev from the Carlton Hotel in the French Riviera resort of Cannes on 28 July. Hugh Schofield reports from Paris.