She could always do what HRH The Princess Marie-Christine "aka Michael" of
Kent did in the 1970s: place the tiara against a black velvet and wear it a la
Russie style!
It can be taken apart and worn converted as a necklace--the "fringe" style--
and there is as lower added silver bar (usually they are made out of silver-
even if the tiara is gold , gold/silver. or platnum--the silver bar you see-
look carefully under it is another with wrapped around brown pipe cleaner--
this is to blend into the hair, and give a firm foundation to hold into hair with
long hair pins. Ah, I'm giving the secrets away....
In the 1920s alot of women would wear a tiara and return to a top jeweller like
Cartiers, VC&A, etc.: and ask them to recommission as new design and
the piece would be taken apart! so alot of beauty was lost that way....