Sapphire and Diamond Coronet designed by Prince Albert for Queen Victoria, now in the V&A

Export stopped by Reviewing Committee on the Export of Works of Art UK, purchased for the nation by a private benefactor.

Reference:

https://www.artscouncil.org.uk/sites /default/files/download-file /EA%20submission%20-%20Queen%20Victoria%27s%20Coronet.pdf