The Real Reasons Why Queen Elizabeth's Diamonds Are So Precious

Commissioned by Queen Mary, the delicate piece is made up of brilliant and rose cut diamonds with 19 pearls, and was made by Garrard in 1913. It was worn by the Queen to the premiere of Conquest of Everest in 1958, was a wedding gift to Princess Diana, who wore it many times. Most recently it was borrowed by the Duchess of Cambridge for a banquet at Buckingham Palace.