phillip hope owned it and gave it his name. omaha bank noonly now the 69-carat diamond was 45.5-carats. >> we believe it was recut to disguise so that it could now be resold. >> chris: the smithsonian did computer modeling to show the hope diamond fits inside the french blue which fits inside the original gem. in 1912, famed jeweler pierre cartier sold it to washington socialite for $180,000 plus diamond she's traded and cartier seems to have invented a curse to go with it. >> wore it everywhere. hard to find a picture of are her after she purchased the diamond in which she is not wearing the diamond. >> chris: gem merchant harry winston donated the hope diamond to the museum in 1958 where it now sits in a glass