Police say they've charged a part-time university employee with stealing sapphires from Cleveland's natural history museum.

Investigators say the suspect smashed a display case just over a week ago and made off with seven of the gemstones worth $81,000.

Police say they arrested 36-year-old Hans Wrage on a grand theft charge Friday.

Wrage is a part-time employee in the physics department at John Carroll University near Cleveland. A message seeking comment was left through his university email address on Saturday. He does not have a publicly listed home telephone number.

The gemstones were part of the Cleveland Museum of Natural History's mineral collection. Police did not say whether the sapphires were recovered.