What started as a quiet journey for an armored truck in July 2022 ended in what federal authorities now describe as the largest jewelry heist in US history. Seven men from Southern California are facing charges after allegedly stealing an estimated $100 million worth of gold, diamonds, rubies, emeralds, and luxury watches.

According to investigators, the suspects had trailed the armored truck for nearly 300 miles, following it from an international jewelry show in San Mateo to a remote rest stop in Lebec, north of Los Angeles. There were no weapons involved, no injuries reported, and no witnesses at the scene. Just minutes later, 24 bags filled with precious cargo were gone.

Among the stolen items were Rolex watches, emerald rings, diamond earrings, gold necklaces, and a lavender jade stone described to be the size of a cicada.

For three years, the incident remained one of the most baffling crimes in the US, with authorities piecing together how such an elaborate theft unfolded without drawing attention.

"They were definitely professional, organized, and prepared," said Assistant US Attorney Jena MacCabe, who is leading the prosecution. "They clearly had a system worked out that was very successful, and they were able to take cargo load after cargo load."

The heist was not a standalone event. The seven men now face charges related to a series of cargo thefts that began months earlier in March 2022, including the theft of around $240,000 worth of Samsung electronics from another interstate shipment.

Authorities said that in the aftermath of the jewelry theft, several suspects deactivated their phones to cover their tracks.

The US attorney’s office for California’s central district confirmed that all seven suspects had been indicted last week. The charges include conspiracy to commit theft from interstate and foreign shipment, along with theft itself. Five of the men are also facing conspiracy to interfere with commerce by robbery.

Two of the suspects have been arrested and are set to appear in federal court in Los Angeles. A third is currently in prison in Arizona on unrelated burglary charges. The rest have yet to be located.

Some of the missing jewelry has been recovered, according to the US Department of Justice. However, much of the treasure from the country’s largest recorded jewelry theft remains unaccounted for as the investigation continues.