So there’s three main types of tiaras in the British royal family
1) The Queen’s personal tiaras- these are pieces that she personally owns. She can choose what she wants to do with them moving forward, who she bestows them on etc
2) Tiaras owned by the Crown- these tiaras are not the Queen’s personal collection so she can’t sell them but she is considered their guardian and decides who can wear them and when
3) Tiaras owned by other members of the family- some tiaras are owned by other members of the family. Some examples of these tiaras and where they came from:
Cartier Indian Tiara- This was bequeathed to the Duke of Gloucester so wouldn’t be worn by people outside their family
Festoon tiara- This was a personal gift to Anne from a shipping company
City of London Fringe tiara- this was given as a wedding gift to Princess Marina and has since been passed through the Kent line
Ogilvy tiara- This was made for Princess Alexandra’s wedding so she is the only person who wears it and may pass it on to her family
House of Brat 