Perhaps I'm late to the story here (August 2018) but I found an article regarding stolen crown jewels that were the, as I understand, burial jewels of King Karl IX and Queen Kristina. The jewels were exhumed and placed on public display at Stagnas Cathedral, Stockholm. More of the story is here:
https://www.express.co.uk/news/world/999615/sweden-crown-jewels-royal-swedish-police-heist-thieves-Stragnas-cathedral

https://www.cnn.com/2018/08/01/europe/sweden-royal-jewels-stolen-intl/index.html