Of course, but these are historical artefacts (the crown jewels are kept in Stockholm) and their cultural value is way higher than the monetary value, and part

Of course, but these are historical artefacts (the crown jewels are kept in Stockholm) and their cultural value is way higher than the monetary value, and part of this value is that they are well preserved and have a traceable history. So if the stolen objects are damaged it is just sad. Like someone snapping a finger off an old statue, or ripping pages off an old and culturally valuable book.