Diamonds for the Dictatorship of the Proletariat () is a 1975 Soviet crime action film directed by Grigori Kromanov and based on the novel of the same name by Yulian Semyonov.
In 1921, Chekist Gleb Bokii receives an encrypted message from Tallinn that there is an organization in Russia that is engaged in the theft of jewels from Gokhran and illegally smuggling them through the Baltic states to London and Paris. The investigation of the case is entrusted to a young employee of the Cheka Vsevolod Vladimirov.