Say what you will about Camilla, she can carry off pretty much all of QEII's jewelry. Sometimes I think a woman has to grow into some of the more serious jewelry. She wears the jewels, they do not wear her.
Muriel, I would be thrilled with anything on that list of yours with regards to Camilla wearing it. And the Teck tiara. But not the sapphire brooch that Albert gave Victoria. Not yet. That one to me, belongs on a Queen only.