Posted by jinja on December 10, 2015, 12:39 am, in reply to "Re: Speculation"
I suspect this is a very fair estimate of what happens when Kate wears a tiara. At the same time, I wonder whether the jewels Camilla wears regularly are kept at Clarence House, which may have its own vault. (The silly picture of the footman in the papyrus tiara seems to have been taken on the Clarence House stairs.) And since Kate is residing in Princess Margaret's old apartment, it may be that there is a jewel vault there also. Margaret owned much of the jewelry she wore, including the Poltimore tiara. I have read that the Spencer tiara is kept in a bank vault, and Diana had to request it each time she wore it. But maybe she was able to keep other jewels at Kensington Palace. Perhaps there is storage for some pieces in the various residences. All guesswork, of course!
Edit: Later I remembered the beautiful collection of the Duke and Duchess of Gloucester, who also reside at Kensington Palace.