In 2010, miners retrieved a black opal from the Welo mine in Ethiopia. Two years later, the opal has made its way into the possession of Howard Ratner, a gambling addict who runs a jewelry store in New York City’s Diamond District. Basketball star Kevin Garnett takes an interest in the opal, asking Howard for it as a good luck charm for his next game. Howard agrees, keeping Garnett’s 2008 NBA Champion ring as collateral. Howard then proceeds to pawn the ring, kickstarting a chain of events that may very well spell his doom.