Shot on location in Paris, Monte Carlo and the Riviera with both American and French actors. When Matthew Versigny discovers that the jewels his diamond company has been buying are fake, he travels to Europe to track down the counterfeiter. With him are his sister, Marguerite and her sweetheart, Paul Bernac, who is an agent in the French Secret Service.

Bhadon, an aged chemist, actuated by the decree of Buddha that in America the secret of making artificial diamonds would be discovered, gives his life to the cause and succeeds. Elated at his titanic success. Bhadon sends his trusted Hindoo servant to the high priest in India, pleading that Shedah might be spared to assist in disposing of the product. Shedah, the powerful emissary for the cause, is dispatched with her two bodyguards to American soil, where, through her wiles and marvelous beauty, she is enabled to effect sale after sale to the wealthy. This monstrous flooding of the American market with gems of astonishing brilliancy and value alarms, to a marked degree, the Kimberly interests, who controlled this outlet.