![A guide to St James': The poshest shops in London dubbed the 'King's High Street' where the only jeweller who's ever sold a tiara worn by the Queen reveals its multi-million price A guide to St James': The poshest shops in London dubbed the 'King's High Street' where the only jeweller who's ever sold a tiara worn by the Queen reveals its multi-million price](https://i.dailymail.co.uk/1s/2023/08/17/14/74429319-0-image-m-5_1692280681182.jpg)
A guide to St James': The poshest shops in London dubbed the 'King's High Street' where the only jeweller who's ever sold a tiara worn by the Queen reveals its multi-million price
The Diamond Tiara once borrowed by the Queen from her friend and courtier, Baron Plunket (after her own had broke enroute to a Gala 50… | Instagram
![There's also a mystery tiara said to belong to the Plunket Family, worn by Queen Elizabeth II on one o… | Queen elizabeth crown, Royal crown jewels, Queen elizabeth There's also a mystery tiara said to belong to the Plunket Family, worn by Queen Elizabeth II on one o… | Queen elizabeth crown, Royal crown jewels, Queen elizabeth](https://i.pinimg.com/736x/0c/d1/b4/0cd1b48f1f6221e65a8f3e3ff9b62df9.jpg)
There's also a mystery tiara said to belong to the Plunket Family, worn by Queen Elizabeth II on one o… | Queen elizabeth crown, Royal crown jewels, Queen elizabeth
![The magnificent tiara of the Barons of Plunket, which Queen Elizabeth Second wore by chance - YouTube The magnificent tiara of the Barons of Plunket, which Queen Elizabeth Second wore by chance - YouTube](https://i.ytimg.com/vi/bakryC8EU1g/hqdefault.jpg)
The magnificent tiara of the Barons of Plunket, which Queen Elizabeth Second wore by chance - YouTube
![Queen Elizabeth II greets Transport Minister Jack Pickersgill at a state dinner at Government House June 30, 1967. She is wearing an emerald and diamond tiara with a matching necklace and the Queen Elizabeth II greets Transport Minister Jack Pickersgill at a state dinner at Government House June 30, 1967. She is wearing an emerald and diamond tiara with a matching necklace and the](https://l450v.alamy.com/450v/2jyxa94/queen-elizabeth-ii-greets-transport-minister-jack-pickersgill-at-a-state-dinner-at-government-house-june-30-1967-she-is-wearing-an-emerald-and-diamond-tiara-with-a-matching-necklace-and-the-bright-blue-sash-of-the-order-of-the-garter-the-canadian-press-2jyxa94.jpg)
Queen Elizabeth II greets Transport Minister Jack Pickersgill at a state dinner at Government House June 30, 1967. She is wearing an emerald and diamond tiara with a matching necklace and the
The Diamond Tiara once borrowed by the Queen from her friend and courtier, Baron Plunket (after her own had broke enroute to a Gala 50… | Instagram
![The Court Jeweller (Lauren Kiehna) on X: "In 1959, the 4th Baron Poltimore decided to sell the tiara. Princess Margaret's friend, Lord Plunket, tipped her off to the auction. By this time, The Court Jeweller (Lauren Kiehna) on X: "In 1959, the 4th Baron Poltimore decided to sell the tiara. Princess Margaret's friend, Lord Plunket, tipped her off to the auction. By this time,](https://pbs.twimg.com/media/EXV7kJXU0AEAqtT.jpg)
The Court Jeweller (Lauren Kiehna) on X: "In 1959, the 4th Baron Poltimore decided to sell the tiara. Princess Margaret's friend, Lord Plunket, tipped her off to the auction. By this time,
![Meet the dashing guardsman Patrick Plunket who captured the Queen's heart over 25 years — and was a comfort as Prince Philip partied | The Sun Meet the dashing guardsman Patrick Plunket who captured the Queen's heart over 25 years — and was a comfort as Prince Philip partied | The Sun](https://www.thesun.co.uk/wp-content/uploads/2018/05/nintchdbpict000004784876.jpg?strip=all&w=640)