Victor Carranza Reuters

AS LONG as Víctor Carranza was still alive, the threat of a new battle for control of Colombia’s emerald business was contained, if only just. Mr Carranza, a gem magnate who won the moniker “emerald tsar” for the control he imposed over the business, died of cancer on April 4th, raising fears that the fragile peace he oversaw could be about to shatter.

Article: The Economist