Art That's Fit For A Queen

Studded with 1,333 diamonds, including a stunning four-carat yellow sparkler at its center, the Diamond Diadem is truly a crown fit for a king — or a queen, as the case may be. Commissioned in 1820 by the flamboyant George IV, the Diamond Diadem is now used on ceremonial occasions by Queen Elizabeth II and is perhaps the most famous object in the Royal Collection, the half-million pieces of art and treasure acquired by monarchs over the past five centuries and held in trust by the Queen for her successors. More than 450 items from the collection are on display until...