Thanks MarcA, what an interesting line of thought. I gather if one is transporting such priceless or highly valuable items at such far distances, in today's world of technology I'd think they would go into some kind of safe/black box where if the mode of transport would have been blown apart, the valuables would at least survive and be able to be detected as in such cases for a black box when a plane crashes.
I suspect and imagine the valuables would be accompanied by a set of detectives and the queen's jeweller who would be on his toes and rightly so. I remember reading a thread on another blog where it was reported that when Mrs. Greville travelled to India or somewhere, she took some of her precious stones with her and was accompanied by detectives to guard same.
Where the insurance is concerned, I believe the organizers would have borne most if not all of the responsibility, and everything would have been done MI6 style.
P.S. What do you think became of the remaining 31 or so carats after the cutting of the Williamson Pink? Were they given to the diamond cutters as payment or remains thus in HM QE's collection?
Apologies to Beth and everyone if this is off-topic.
When I went to see the Cartier exhibition in Canberra I started wondering about the logistics of such of thing.
With the items like the Williamson brooch on display lent by the Queen: https://tiarasandtrianon.com/2012/08/14/williamson-diamond-brooch/
The value of the jewels must be in excess of £250 million pounds.
The exhibit hall must have been chosen with almost paranoid care for security. For lent items owners reassured and perhaps even having the right to consult third party security consultants.
The insurance would have cost of millions.
Lastly what would be the logistics of getting the pieces there. I presume there was no way the items all travelled together.
Does anyone have any information or ideas on any of the above or further points?