Some facts about Cecile's jewels courtesy of Ursula's fabulous jewelry site royalmagazin:
In the swedish magazine SVENSK DAMTIDNING, in the numbers of the spring 1956, some articles about the memories of Crown Princess Cecile of Germany (1886-1954) are on public. The articles mention that the Crown Princess left her jewels to her chauffeur Mr Otto Groha.
She wrote her last wills on May 2nd 1952 and January 29th 1954. On October 21st 1955 a law court annulled her last will.
Mr Otto Groha became forced by the court to return back to Prince Louis Ferdinand (1907-1994) a diamond diadem with 15 stones of 13,9 carat and about 2300 smaller brilliants.
Other jewels belonged to the Crown Princess which was mentioned in the articles are
* Pear shaped drop sapphire, she got from her husband
* Famous Romanov emerald worth 300.000 swedish crowns (belonged to her mother)
* Small bow brooch of platinum and brilliants, also from her husband
She also mentioned in her will her Faberge tiara so she still had it at that point.
Other jewels:
Queen Louise's (mother of Kaiser Wilhelm I) diamond & aquamarine earrings were donated in 2006 to the Stiftung Preußische Schlösser und Gärten Berlin-Brandenburg (SPSG) by a private owner. They are now on display at castle Paretz, Queen Louise’s favourite castle. An inventory of Queen Luise’s jewellery done in 1810 recorded one necklace of brilliants and aquamarines, and a pair of girandole earrings with brilliants and Aquamarines, probably the same which are to be admired now in Paretz. Very little remains of the former jewel treasure of the Prussian kings. During the Napoleonic wars much was melted for the silver. By 1913, as can be documented, Queen Luise’s earrings were still among the possessions of the royal house. How they ended up at an auction house in Switzerland in 1993 is a mystery.
Queen Elizabeth of Prussia left much of her jewelry to Vicky. Angered, Queen Augusta bypassed Vicky and her daughters in her will and left most of her jewels to her daughter GDss Louise of Baden and her granddaughter, the future Queen Victoria of Sweden and some to Kaiser Wilhelm (who apparently didn't want a good deal of it) and less still to Henry.