The 10 Most Exquisite and Extravagant Tiaras in European Royal Vaults

Camilla Parker Bowles, Duchess of Cornwall, has worn the stunning Boucheron tiara a number of times, including while on tour in Sri Lanka with her husband, Prince Charles, in 2013. The piece came to the royal family via a London socialite named Margaret Greville; she left the piece to the Queen Mother. The Queen Mother, who clearly loved her diamonds, reportedly added to the piece's height and overall carat count with modifications over the years. The piece is, owing to its heritage, often referred to as the Greville tiara.