Diamonds to Die for - David W Rudlin

In the basement vaults lie more than $8 billion worth of rough, uncut diamonds. Above, the most advanced security system in all of Europe. Yet somehow two men manage to break into the London headquarters of Delacroix - the most powerful diamond company the world has ever known - without being seen. Only one of them leaves. The other is found lying dead in a pool of blood, the sole clue to his identity a piece of paper with the words "REMEMBER GABORONE." The search for answers takes Inspector Ian McLean of Scotland Yard to Botswana, South Africa, Antwerp, and the dark heart of the global diamond industry. Written by a former top executive for De Beers, Diamonds To Die For is a rare insider's view of what lies behind the sparkle of a girl's best friend.