Billions of dollars in precious stones are unearthed each year, but the rarest never make it to the open market. That's where Don Kogen, America's most extreme gem hunter, comes in. Kogen is CEO of Gem Guys, Inc., and a legend in the business. He specializes in rare stones from the most dangerous and lawless places on earth, racing the clock to be the first to each new find, always staying one step ahead of the competition.
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