# Legal proceedings for alleged international jewel thief

> Live situation record from CLSTR: https://clstr.news/situations/legal-proceedings-for-alleged-international-jewel-thief
> Updated: 2026-09-12T00:00:00.000Z. Sources: 11. Developments: 2.

Marioara Munteanu, a 44-year-old Romanian woman, appeared in Missoula County District Court following her apprehension on a warrant. Prosecutors describe her as an “alleged international jewel thief.”

Munteanu faces a felony theft charge regarding the alleged theft of a diamond valued at approximately $28,000 from a Missoula jewelry store in 2022. Reports indicate she is accused of stealing items across multiple U.S. states and various foreign countries.

## Timeline

### 2026-09-12: Police in Romania conduct theft investigations and locate missing person

Police in Romania have arrested a suspect for a bar theft in Cluj, detained a man in Ocna Mureș for qualified theft involving thousands of euros, and located a missing man from Argeș.

9 sources. https://clstr.news/cluster/ocna-mure-man-detained-for-qualified-theft

### 2026-09-11: Missoula court proceedings begin for alleged international jewel thief

Romanian national Marioara Munteanu is facing felony theft charges in Missoula, Montana, for the alleged 2022 theft of a $28,000 diamond.

2 sources. https://clstr.news/cluster/missoula-court-proceedings-begin-for-alleged-international-jewel-thief

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Cite as: Legal proceedings for alleged international jewel thief. CLSTR, https://clstr.news/situations/legal-proceedings-for-alleged-international-jewel-thief