From the description:
"John Dortmunder leaves jail with ten dollars, a train ticket, and nothing to make money on but his good name. Thankfully, his reputation goes far. No one plans a caper better than Dortmunder. His friend Kelp picks him up in a stolen Cadillac and drives him away from Sing-Sing, telling a story of a $500,000 emerald that they just have to steal. Dortmunder doesn’t hesitate to agree.
The emerald is the crown jewel of a former British colony, lately granted independence and split into two nations: one for the Talabwo people, one for the Akinzi. The Akinzi have the stone, the Talabwo want it back, and their UN representative offers a fine payday to the men who can get it. It’s not a simple heist, but after a few years in stir, Dortmunder could use the challenge."
This heist books gets 4.5 stars from 35 reviews. 308 pages, with WhisperSync for voice; the Audible version will cost $3.95 after this purchse.