As thieves made off with some of France's beloved crown jewels, you might have found yourself wondering just how much the items are actually worth.

The French crown jewels robbed from the Louvre museum in Paris are likely lost forever, an art crime expert tells CBS News, even if the thieves are caught.

Indiana couple, Jacob and Holly Barker, were in the Apollo Gallery when the robbery began and called it "terrifying."

How thieves pulled off the extraordinary theft of priceless jewels from the world-famous museum in broad daylight.

PARIS and LONDON -- Several people disguised as construction workers broke into the world-famous Louvre Museum in Paris on Sunday, cracking open display cases and stealing jewelry that once belonged to Emperor Napoleon and his wife, officials said.

Thieves broke into the museum's Galerie d'Apollon and made off with "priceless" jewelry, French interior minister Laurent Nuñez said.