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Crime & Mysteries
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Crime & Mysteries Fact #232

The biggest diamond heist in history was foiled by a half-eaten sandwich

In 2003, thieves in Antwerp cleaned out over 100 million dollars in diamonds from a vault with 10 layers of security. The ringleader was convicted thanks to his DNA on a discarded sandwich.

October 22, 2026 · 1 min read · 2 sources

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In 2003, thieves in Antwerp cleaned out over ___ million dollars in diamonds from a vault with 10 layers of security. The ringleader was convicted thanks to his DNA on a discarded sandwich.

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A vault beneath one of the best-guarded buildings in the world. A gang that plans for years. And a sandwich that ruins everything. The Antwerp diamond heist has everything a heist movie needs, except a happy ending for the thieves.

A weekend in the vault

Over the weekend of February 15 to 16, 2003, a gang broke into the vault of the Antwerp World Diamond Centre in Belgium. According to Guinness World Records, the vault had 10 layers of security. The planning took four years.

The ringleader, Leonardo Notarbartolo, had rented offices in the building and posed as a diamond merchant. That way, the gang learned the routines, the layout and the alarm systems. Using copied keys, they got into the high-security vault and emptied 123 of 160 safe-deposit boxes.

The loot: diamonds, gems and jewelry worth more than 100 million dollars. The largest diamond heist Guinness has ever recorded.

The roadside slip-up

The thieves were smart enough to take the security camera footage with them. Less smart: during their getaway, they dumped the footage and other trash by the side of the road. That included a half-eaten sandwich.

It had Notarbartolo’s DNA on it. Together with the other evidence, that was enough to convict him. He got ten years in prison.

Bonus fact: The diamonds themselves were never found. Where the more than 100 million dollars in loot ended up, nobody but the thieves knows.

Notarbartolo was later released on parole. The stones stayed missing.

A perfect plan, four years of prep, ten layers of security beaten. And then lunch.

The evidence

  1. 1Guinness World Records: Largest diamond heist
  2. 2National Geographic: A Recent History of Diamond Heists

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🎃 The golden pumpkin! Here is your secret Halloween fact:

The first jack-o’-lanterns were turnips. In Ireland and other Celtic regions in the 19th and early 20th centuries, people carved faces into turnips, sometimes potatoes or beets, and put a candle inside. It was meant to keep away the restless spirit “Stingy Jack”, who was barred from both heaven and hell. The National Museum of Ireland in County Mayo still keeps a plaster cast of a carved turnip from Donegal with “a pinched angry face”.

Source: Smithsonian Magazine