The Diamond Game: Cosgrove Pulls Back The Curtain

Wednesday, March 18 | 1:00 PM – 2:30 PM

BACK BY POPULAR DEMAND!

A Personal Journey Through High-Risk FBI Cases
Presented by Dennis T. Cosgrove, Former FBI Special Agent & Author

What really happens when the FBI steps onto the world stage?

In The Diamond Game, Dennis T. Cosgrove pulls back the curtain on a little-known but extraordinarily dangerous corner of international crime: the global diamond trade. Drawing from his firsthand experience as an FBI Special Agent from 1986–2008, Cosgrove recounts his deep involvement in high-stakes investigations that took him from the United States to post-Soviet Russia—where diamonds, organized crime, government corruption, and international diplomacy collided.

At the heart of the book is Cosgrove’s work alongside Russian law enforcement during a volatile period of history, as newly opened markets and weakened institutions created opportunities for massive diamond smuggling operations. These were not abstract cases—they involved real power brokers, enormous sums of money, personal risk, and delicate negotiations where one wrong move could derail years of work or put lives in danger.

COSGROVE WEAVES TOGETHER:
Insider stories from international FBI operations
The hidden role diamonds play in global crime and geopolitics
The challenges of collaborating with Russian authorities during a time of deep mistrust
Personal moments of tension, uncertainty, and moral complexity rarely discussed outside the Bureau

THIS IS NOT A LECTURE, IT'S A CONVERSATION
This highly interactive program invites attendees to ask questions, explore behind-the-scenes decisions, and hear candid reflections that never made it into official reports. Cosgrove doesn’t just tell you what happened—he explains why it mattered and how these cases reshaped modern international law enforcement.

If you’re fascinated by true crime, espionage, global politics, or real-world stories that read like a thriller, this is a must-attend event.

ADMISSION:
$5 for Members | $18 for Non-Members
Includes museum admission. Valid Membership card required for member entry

Please Pay Online to ensure your seat. NO REFUNDS
This talk is expected to sell out – there is no guaranteed availability at the door

Any Questions, please contact us:
📞 Email [email protected] or Call (772) 225-1961

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Host or Publisher The Historical Society of Martin County