The Moon of Baroda diamond—famously worn by Maharajas and Marilyn Monroe—will be auctioned by Christie’s on 27 November. In 1953 it was donned by Monroe when she sang the iconic song, Diamonds Are a Girl’s Best Friend whilst promoting the Howard Hawks film, Gentlemen Prefer Blondes (1953). Iconic Hollywood royalty, Marilyn Monroe reportedly exclaimed: ‘It’s gorgeous!’ upon setting eyes on the stone—it was the largest diamond she ever wore in her lifetime. A rich history...