Evidence that Pss. Grace's small, 5-loop, diamond tiara was a lifetime loan from Chaumet?:
Chaumet's huge exhibition in the Forbidden City a year or two ago is viewable by virtual tour, online. Multiple historically significant tiaras were included, including some whose current owners are unknown or not clear (like the Bessborough tiara). In the virtual tour, you can zoom in on the museum placards for various pieces to see tiaras' current provenance. Many of the placards are in Chinese, which unfortunately I cannot read. From what I can make out for some though, some --like the Bessborough tiara, the Ruby Calabria tiara, and it very possibly it seems Princess Grace's 5 loop diamond Chaumet tiara!-- seem to be owned by the house of Chaumet now. Why do I think this much, despite not being able to read Chinese? The description plaques for each of there tiaras -- and other tiaras on display that we KNOW belong to Chaumet -- all say 'CHAUMET' on the very bottom line (and from the select objects in the exhibit also containing an English description, we know that the bottom line is used to convey the current owner). Moreover, the placards of the tiaras on display with known current whereabouts/provenance, like the Bedford Tiara and the Tavistock Tiara, do NOT say 'Chaumet' on the bottom line. To see what I mean, go to the virtual tour and see the following: view o43 (Bedford and Tavistock tiaras), view 047 (Princess Grace tiara), view 048 (Bessborough tiara), view 049 (Calabria Ruby tiara). (Note though: if my theory is correct, it means that the Chaumet Pansy tiara (view 043) is no longer only a loan to Chaumet from the Honorable John Hastings-Bell, but more formally owned by the jewelry house now.)
Could it be that Princess Grace never in fact owned the 5-loop, all-diamond tiara that she is synonymous with, but in fact a lifetime loan? We know that Grace made heavy use of loans. And because Pss Grace was still alive when Pss Caroline first married, that Princess Caroline wore the tiara to the prewedding ball does not conflict with this theory. And it would explain why the tiara has not been worn since Grace died.
Thoughts?