Actress Gal Gadot gets to wear the 128.54-carat "Tiffany Diamond" in the soon-to-be-released big screen adaptation of Agatha Christie's Death on the Nile. The famous — but rarely worn — gem dangles from a platinum necklace featuring an openwork motif of sun rays glistening with 481 diamonds totaling more than 100 carats. A Tiffany representative […]