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California's $6.1 billion haul of unclaimed property includes a sack of diamonds, nearly 20 pounds of gold bars -- and a can of sardines.
This abandoned bag of loose diamonds is estimated to be worth $500,000.
Since 2007, the controller's office has attempted to contact property owners before the items are turned over to the state. It even established a locator unit that oversees mailings and other efforts to reach owners.