That is interesting Ursula.
The question for me would be when did the Queen sell her jewels.
I very much doubt if King Manoel was in dire need of money during his period of exile which would have forced his wife to sell her jewels. He had a house full of valuable works of art, which could have been sold quietly if needed. Both the King and Queen actively took part in British social life attending Court functions, the opera and other public events, as well as travelling to the Riviera each summer, so the Queen had the opportunity as well as a need for suitable jewellery. The King was a bibliophile, and continued his collecting in exile. These books were, I understand, left to form part of a museum in Portugal. From what I can gleam through the UK press and general reading the King was not in dire need of money.
After King Manoel's death Fulwell Park was sold for re-development, which would have provided some funds for the Queen.
This link provides a brief overview of Fulwell Park
https://houseandheritage.org/2019/01/24/fulwell-park/ For the purposes of taxation the King's estate was valued 26,447/11/6 pounds sterling. Probate was granted on 3 January 1933, when the UK was still in the depths of the Depression, significantly lowering the value of property.
An important aspect of the value of the estate for probate is that it does not take into account funds, property and assets which the King held outside England; nor any money and assets held separately by his wife, his mother or trustees of funds etc which provided him with income.
What Queen Augusta Victoria built in Germany was a smallish house, which was then called Fulwell Park in recognition of where she had lived in England.
The land for the house was given to her by her brother, it being part of the Umkirch Castle/palace estate which had been owned by the Hohenzollern Sigmaringen family since the middle of the ninteenth century. Whether Queen Victoria willed the house to her brother, or whether it reverted to him as the owner of the land after her death is something I don't know. Today, Fulwell Park has been sold to another, private individual and is known as Queen Auguste Victoria Park. (For the interesting history see
https://translate.google.com/translate?hl=en&sl=de&u=https://de.wikipedia.org/wiki/Schloss_Umkirch&prev=search )
Once Queen Augusta Victoria married Count Robert Douglas in 1939 money would not have been issue at least until WWII and after. Perhaps that was when she sold her jewels. I very much doubt if the tiara with the crosses will surface. The symbolism would preclude it being worn by most.
The Cartier ruby and diamond choker is much more likely to surface, as would the ruby and diamond earrings.
No doubt additional information can be found in biographies of King Manoel and Queen Augusta Victoria.
Has anyone read any?