Portland Tiara

It was exhibited at the Harley Gallery and Foundation's Portland Collection from 2016 until it was stolen and broken up in November 2018.

[1] In 1902, William Cavendish-Bentinck, 6th Duke of Portland commissioned Cartier to make the tiara for Winifred, his wife, to wear at the coronation of Edward VII and Queen Alexandra.

On 20 November 2018, thieves entered the gallery at around 22:00, broke into the display case using power tools and took the tiara and brooch.

[7] At their trial in 2022, the prosecution said the Portland Tiara and brooch were taken to a workshop in London's Hatton Garden jewellery quarter within hours of the burglary.

[1] On 8 July 2022, three men were found guilty of stealing the tiara and brooch, which it is believed were transferred from London to Turkey.