I came across the below link and it entailed a discussion on the reportedly Cartier created necklace for Queen Alexandra. I would have seen reports that this was only a make up of a reported necklace in the possession of Queen Alexandra but it was not the one indicated in the link.

Can anyone confirm or add the portrait by Flaemeng it is reported depicted Queen Alexandra of the 🇬🇧 in this particular necklace?

https://forum.alexanderpalace.org/index.php?topic=4098.345

Regards,

Dave.