The Hope Diamond Mystery The most sinister jewel in history. The true story of Lord Francis Hope who inherits the Hope Diamond and marries showgirl May Yohe. Lord Francis Hope gambles away the family fortune and May Yohe leaves him. Another suspected curse of owning the Hope Diamond. Details Casts Galleries Posters Title The Hope Diamond Mystery Release Date 1921-02-19 Runtime 05 Hours 00 Minutes Genres Action Adventure Production Companies George Kleine Productions Production Countries United States of America Grace Darmond... Mary Hilton / Bibi... Harry Carter... Sidney Atherton / Nang Fu... George Chesebro... John Gregge / Jean-Baptis... Boris Karloff... Priest of Kama-Sita / Dak... Carmen Phillips... Wanda Atherton / Miza... Harry Archer... Johnson... Arthur Clayton... Lord Francis Hale (as Cap... Ethel Shannon... Lady Francis Hale... William Buckley... Reginald Travers (aka Put... Frank M. Seki... Saki... William Marion... James Marcon / Bagi... May Yohe... Lady Francis Hope... Original Size (1280x720) Original Size (1000x1500)