A 24-year-old Chinese national has been formally charged in France in connection with a sophisticated heist at the Muséum national d’histoire naturelle (Museum of Natural History) in Paris, where nearly six kilograms of rare gold nuggets were stolen in September. French prosecutors say the case highlights both the vulnerability of cultural institutions and the criminal sophistication of those who target them.

In the early hours of 16 September 2025, cleaning staff at the Museum of Natural History discovered debris and forced entry in the mineralogy gallery, prompting a full investigation. Investigators believe a single intruder entered the museum around 1 a.m., left around 4 a.m., and used power tools—including an angle grinder and blowtorch—to breach two secured doors and a display case containing the gold nuggets. Among the stolen items were historically and scientifically significant gold specimens, including a nugget gifted by Tsar Nicholas I of Russia in 1833 from the Ural region, another from the California Gold Rush era, and a 5 kg nugget discovered in Australia in 1990.

The material damage was estimated at around €1.5 million, though the institution emphasised that the true loss lies in the heritage, scientific and public-value of the items.

On 30 September 2025, Spanish authorities arrested the Chinese national in Barcelona based on a European arrest warrant issued by French prosecutors. At the time of her detention, she allegedly attempted to dispose of nearly one kilogram of melted gold pieces. She was formally handed over to French authorities on 13 October and charged with theft in a criminal organisation and criminal conspiracy, and placed in pre-trial detention.

Paris public prosecutors indicate that the investigation remains open, particularly regarding whether she acted alone or with accomplices, the whereabouts of the remaining stolen gold, and how the gold was processed and trafficked after the theft.

This heist comes amid a string of high-profile thefts at French cultural institutions. Less than a month later, in October 2025, the Louvre Museum was hit by a dramatic robbery of historic jewellery and royal artefacts, further raising concerns about museum security nationwide. Experts say some key issues exposed by these incidents include security gaps at heritage sites housed in older buildings that limit structural upgrades, the temptation of precious metals like gold which can be melted, re-worked and sold more easily than high-profile artworks, and the organised-crime dimension indicated by the professional modus operandi of the thieves.

The French culture ministry and museum officials are now under pressure to perform risk audits, reinforce alarms and access controls, and consider increased international coordination for tracking stolen heritage objects.

The suspect will face prosecution under French criminal code provisions for organised theft, which can carry up to 15 years’ imprisonment for the most serious offences. Forensic analysis continues on the tools and equipment found at the scene, including grinders, gas cylinders, and a blowtorch. Investigators are tracking the chain of custody of the stolen gold, including melted pieces, to identify networks of resale or re-processing. The museum is conducting a complete review of its collection and security footage to determine if any further items are missing or at risk.

The case serves as a stark reminder that even institutions dedicated to science and heritage—rather than high-value artworks—are vulnerable. The stolen gold nuggets, while small in number, represented unique historical artefacts with provenance ties to major global economic events such as the gold rush and imperial exchanges, not simply the monetary value of gold. Their loss undermines not only the museum’s collection but also broader scholarly and public heritage interests. It is also illustrative of a shift, as thieves increasingly view precious raw materials and rare geological specimens as easier targets than high-security paintings or sculptures, especially when they can be melted or re-cycled.

The AFP contributed to this report.