'The Sleeping Lion'

Thursday, May 31, 2018 - 12:00am

2018_0531_08.mp3

It's the world's largest known freshwater pearl, and it once belonged to Russia's Catherine the Great. It's got a unique shape, and a 300-year history of changing hands between merchants, jewelers and European royalty. Now, it's been sold at auction in the Netherlands. The BBC's Anna Holligan has the story.