15 of Queen Elizabeth's Diamonds That You Have to See to Believe

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 and 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.