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Rough Diamond

Rough Diamond

Always True Crime 4 Episodes Sep 29, 2026

Rough Diamond is a true-crime series about a 1965 theft of the world's largest uncut diamond from London's Natural History Museum. David Knight, a 24-year-old window cleaner who lived nearby, was arrested despite no evidence placing him at the scene and doubts about the police confession. The story follows what happened when he entered prison and the criminal life he led after leaving Wormwood Scrubs, ending in a famous heist few knew he had carried out. Josie Long narrates this Audio Always and Colenso Films production.

Episodes

Excuses, Not One
Excuses, Not One Sep 29, 2026 28:36 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 case is finally getting some attention. While Dolly is declaring her son’s innocence, prison is changing him. And when he’s released, he embarks on a differe
Diamond Dave
Diamond Dave Sep 22, 2026 30:15 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 confess on the spot? Could he even have stolen the diamond? And are the police as upstanding as they seem? David’s mum, Dolly, is about to begin a campaign to clear
The Making of a Thief
The Making of a Thief Sep 22, 2026 27:43 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 window cleaner is arrested a few months after the theft, his family is thrown into turmoil. David Knight will protest his innocence until the day he dies, but i
Introducing: Rough Diamond
Introducing: Rough Diamond Sep 15, 2026 0:57 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

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