A Spoiled Game

The most prized diamonds in the world aren't just a representation of flawless beauty, they also serve as an untraceable form of payment. After international criminal Jack Swift's heist for the Hope Diamond is thwarted, he soon realizes he's in the pocket of genius radicals threatening to frame him for genocide-unless he follows their orders.
Swift once again baits his rival, Detective Jim Beckett, with his trademark hints during a dangerous international journey full of diamond heists and the secrets and spoils of war. An eclectic group of power-hungry rogues has developed a plutonium-based bioweapon, and the two foes must work together to combat a global disaster. Leverage still remains for each, however.
"A Spoiled Game" is the third book in the Jack Swift series.