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The 400 Million Dollar Emerald

Some say its the largest emerald ever found, weighing in at 840 pounds and containing roughly 180,000 carats. Unearthed in Brazil in 2001, the Bahia emerald has an incredible history that fits its massive size: It spent months in a submerged bank vault in New Orleans after Hurricane Katrina and was even posted on eBay with a buy it now price of $75 million.