Thieves broke into Dresden's Royal Palace in Germany during a power outage, vandalizing the property and making off with what is described as "priceless" materials. German media is describing the burglary as the worst since World War II.
The property's value is estimated in the high hundreds of millions, though director of Dresden's state art collections Marion Ackermann says the value of the property goes beyond materialism.
"We cannot give a value because it is impossible to sell," Ackermann said. "The material value doesn't reflect the historic meaning."
Ackermann described the stolen items as three "priceless" sets of diamonds belonging to an 18th-century collection assembled by the museum's founder.