The Sins of Rosanne(1920)

Roseanne (Ethel Clayton) has grown up near some diamond mines in South Africa. As a child, she became ill and a Malay nurse, Rachel Bangat (Fontaine La Rue) promised to cure her. That she did, but she also worked some voodoo on the child, who, as a grown up now displays a powerful desire for diamonds and the ability to throw evil curses on those who displease her.