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Podcast

Rough Diamond

by Always True Crime
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United Kingdom · True Crime
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About the show

A true story of crime, corruption and two impossible thefts. In 1965 the world’s largest uncut diamond is stolen from the Natural History Museum, the man arrested is David Knight, a 24 year old window cleaner who lived just yards away.  Now Josie Long tells his extraordinary story. There was no evidence placing David at the scene, and the police officers who claimed he confessed were far from squeaky clean.  But if he was innocent when he went into prison, he certainly wasn’t on his release. After he walks out of Wormwood Scrubs he embarks on an audacious life of crime, culminating in a famous heist that only a handful of people in the world knew he was responsible for…until now.  Launches September 23rd. Follow now so you don’t miss the first episode, or join the Always True Crime Patreon to get notified when it drops. An Audio Always and Colenso Films Production. Produced by Mansi Vithlani. Executive produced by: Paul Hodgson, Richard Carroll and Ailsa Rochester. Sound design by Craig Edmondson. Hosted on Acast. See acast.com/privacy for more information.

Latest episodes

  • A Perverse Robin Hood

    October 6, 2026 · 24 min

    David has emerged from prison with a mission - he will earn the reputation the police saddled him with. He embarks on a series of heists, from conning Penthouse subscribers to robbing one of the world’s greatest jockeys - Lestor Piggott…

  • Excuses, Not One

    September 29, 2026 · 29 min

    The police who elicited David’s confessions are heading to trial themselves. Meanwhile, David is in prison, and it’s taking a toll on his body and his mind. But Dolly’s work to get David’s story on the front page is gaining traction. His…

  • Diamond Dave

    September 22, 2026 · 30 min

    David Knight lives just yards from the Natural History Museum. When the police swoop down on the home he shares with his mum and stepfather, they’re convinced they’ve got their man. But there are holes in their story. Did David really…

  • The Making of a Thief

    September 22, 2026 · 28 min

    London in the 1960s is in the grips of a crime spree…rare diamonds are being stolen. The latest is the Colenso diamond. It’s the world’s largest uncut diamond and one of the Natural History Museum’s most important pieces. When a young…

  • Introducing: Rough Diamond

    September 15, 2026 · 1 min

    A true story of crime, corruption and two impossible thefts. In 1965 the world’s largest uncut diamond is stolen from the Natural History Museum, the man arrested is David Knight, a 24 year old window cleaner who lived just yards away. Now…