Watch Mountain of Diamonds for Free: How to Stream the Movie Online at 123Movies. . France, 1915. Young and radiantly beautiful Centaine de Thiry is the happiest woman in the world: in a few more hours she will be married to pilot Michael Courteney, the love of her life. But fate has it otherwise: Michael is shot down in a reconnaissance plane shortly before his wedding. Life has lost its meaning for Centaine. When the young woman realizes soon afterwards that she is expecting a baby, her zest for live is revived. She decides to give birth to the child in South Africa, the home country of her deceased fiancé.