These Expensive Jewelry Heists Will Make You Lose All Hope In Security Systems

2000 Millennium Dome – Nearly $700M

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This has to be one of the greatest heists that almost happened. The Millennium Dome in London had just opened, and the thieves were ready to take advantage with fancy gadgets and tricks. They somehow had a JCB earth digger. The real tricksters here were the cops.

After the robbers entered, they threw tear gas to ensure no one could come inside but the cops were already dressed as a cleaning crew. They had been tipped off about the heist and replaced the Millennium Star diamond (203 carats) and 12 blue diamonds with fakes. The thieves would have been upset had they made an escape.