In 1947 , Yashvantrao sold the necklace to Harry Winston . Winston lent the necklace out that year to actress Katharine Hepburn , who wore it to the 19th Academy Awards ceremony . The necklace formed part of Winston 's " Court of Jewels " , a nationally touring exhibition of jewels and jewellery including the Hope Diamond and the Star of the East . In 1955 , Winston sold the necklace to Cora Hubbard Williams of Pittsburgh , Pennsylvania . Williams held the necklace until 1972 , when she bequeathed it to the Smithsonian Institution . Since then , it has been on display in the Janet Annenberg Hooker Hall of Geology , Gems and Minerals of the National Museum of Natural History in the Smithsonian Institution in Washington D.C
19th Academy Awards
19th Academy Awards
Spanish Inquisition Necklace