Here’s what you’ll learn when you read this story:A 4-year-old playing with a metal detector in the UK stumbled across a Tudor-era carved gold locket and reliquary. Now at the British Museum, the pendant is considered a rare and priceless artifact. Up to 73 percent of it is pure gold, according to the museum’s analysis. The piece has been in the British Museum since 2012. While it wasn’t worth $4 million, the gold pendant is still a priceless historical find.