Gem Hunt

How do jewelers secure their inventory? They buy pieces from people like Ron LeBlanc. ``Gem Hunt'' takes viewers inside the daring, unpredictable and often dangerous gem industry, where LeBlanc and his cohorts -- luxury goods adviser and entrepreneur Diane Robinson and geologist Bernie Gaboury -- travel to remote trading regions in search of the world's biggest, brightest and most profitable jewels. With potentially enormous payoffs and the aspiration of finding the perfect stone as guiding for…