Black Diamonds (Hungarian: Fekete gyémántok) is a 1938 Hungarian drama film directed by Ladislao Vajda and starring Zita Szeleczky, Zoltán Greguss and Valéria Hidvéghy. It is based on an 1870 novel of the same name by Mór Jókai, the title referring to coal. It was remade in 1977.
The film's sets were designed by the art director József Pán.