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

Upon her passing, society heiress Dame Margaret Greville left her entire collection of famed jewels to her friend the Queen Mother, and many of the pieces have become favorites of the Queen. When Cartier made the earrings in 1929 the purpose seems to have been to combine as many different cuts of diamond as possible, featuring half-moon, trapeze, square, baguette, baton and emerald cut stones. The earrings were one of the Queen's wedding presents from her parents.