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Becky searches for sunken treasure off Key West, with assistance from Mel Fisher's Treasures, eventually uncovering a rare silver coin.
Becky looks for gems at the Crater of Diamonds Park in Arkansas and meets a man who found a flawless yellow diamond worth more than $15,000.
Becky hunts for aquamarines in the Blue Ridge Mountains of North Carolina, finds them by dynamiting mine walls, and then has them cut, polished and appraised.