3An imperial necklace (Napoleon to Marie-Louise or similar) — weighty gem and story

The Galerie d’Apollon historically houses several famous necklaces — for example, gifts associated with Napoleon and his family.
News coverage mentions necklaces among the nine items taken. Necklaces with large emeralds, sapphires or diamonds — especially those presented as state or dynastic gifts — carry both high gem value and enormous historiographical weight (they are artifacts from a specific political and social moment). Their loss chips away at the museum’s ability to tell that story.