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.
| Actor | Role |
|---|---|
 Grace DarmondMary Hilton / Bibi | Mary Hilton / Bibi |
 Harry CarterSidney Atherton / Nang Fu / Ghung | Sidney Atherton / Nang Fu / Ghung |
 George ChesebroJohn Gregge / Jean-Baptiste Tavanier | John Gregge / Jean-Baptiste Tavanier |
 Boris KarloffPriest of Kama-Sita / Dakar | Priest of Kama-Sita / Dakar |
 Carmen PhillipsWanda Atherton / Miza | Wanda Atherton / Miza |
 Harry ArcherJohnson | Johnson |
 Arthur ClaytonLord Francis Hale (as Captain C. Clayton) | Lord Francis Hale (as Captain C. Clayton) |
 Ethel ShannonLady Francis Hale | Lady Francis Hale |
 William BuckleyReginald Travers (aka Putnam Bradley Stone) | Reginald Travers (aka Putnam Bradley Stone) |
| FFrank M. SekiSaki | Saki |
| WWilliam MarionJames Marcon / Bagi | James Marcon / Bagi |
| MMay YoheLady Francis Hope | Lady Francis Hope |