A man steals a huge diamond and sets off a chain of events that ends in tragedy for a Zulu prince.
At a party thrown at the Metcalf estate, the Marquise D'Irancy's Sultana diamond disappears when the lights go out during a power failure. Suspected of the crime is William Kirkland, the wastrel son of the wealthy Kirkland family, but William's sister Diana comes to his defense. Aiding her in the investigation is Clamp, a wandering peddler.
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.
The true story of Lord Francis Hope who inherits the Hope Diamond and marries showgirl May Yohe. Lord Francis Hope gambles away the family fortune and May Yohe leaves him. Another suspected curse of owning the Hope Diamond.
A diamond is stolen at a houseboat party given by the district attorney. He gives the thief a chance to return it by putting an empty box on a table and turning out the lights. When the lights are turned back on the box is gone, and the district attorney has a knife in his back and is quite dead. The police and the coroner arrive. There are several attempts made on the life of the coroner. Ruth Whitman is found hiding in a grandfather-clock, holding the gem box. She claims the box was pushed into her hands and she was pushed into the clock. The district attorney's butler/valet tells the coroner he saw who killed his employer and a few minutes later he is also murdered. The mystery deepens.
In the Crimea, the Reds and the Whites aren't done fighting, and Jeanne discovers that the man she loves is a Bolshevik (when he kills her father). Penniless, she returns to Paris where she works for her uncle. Soon after, her lover Andreas is in France to organize the sailors in Toulon. So also is a thief, traitor, and libertine, Khalibiev, who wants to seduce Jeanne. His schemes, Jeanne and Andreas's naivete, and a lost diamond bring the lovers to the brink of tragedy.
German actress Lena Malena starred in this lavishly budgeted and potentially intriguing melodrama about the influence of a valuable gem on its owners.
An Indian jewel merchant goes from penniless to wealthy in this story about gratitude.
An airliner makes a forced landing at night in the desert. The passengers and crew take refuge in a nearby deserted house. Soon some of the passengers are found murdered, and one of the passengers reveals himself to be a detective who was guarding one of the murdered passengers, who was carrying a bag of diamonds--which is now missing. The detective must find out which of the passengers is the killer.
A sophisticated jewel thief tries to prove himself innocent of a string of cop murders.
A man dodges jewel thieves while carrying a fortune in diamonds on the Orient Express.
A disparate group of people meet as passengers on a superspeed train crossing the U.S. Aboard are a seductive blackmailer and the stage director he intends to frame, a woman chasing her husband who is running away with the blackmail victim, and the stage director's feisty leading lady.
Phyllis Fowler claims to be just a "simple little country girl" trying to get by in the wicked big-city, and she takes a big getting-by step when she pulls a scam that gains her a $17,000 diamond from an exclusive jewelry store. Soon, a private-detective, who has a dupe gem matching the stolen one, the police, and two gangster buddies of the jeweler are all racing each other to get the diamond back from Phyllis. The country-girl provides them all with a wild chase.
A group of thugs tries to steal the cursed title gem from a jeweler who has been hired to cut it into small, saleable pieces.
Americans Tommy Baldwin and Joe Dugan are hired to transport a fabulous diamond from Shanghai to San Francisco. They will be paid handsomely on success or killed on failure. The diamond is stolen as they take possession of it.
White hunter Allan Quartermain and his enigmatic guide help a young Irish woman locate her missing father in unexplored Darkest Africa.
Drummond's wedding with Phyllis is interrupted when the inspector guarding their gifts is killed. He tries to trace the killers and uncovers the mystery of diamond counterfeiters.
The Treasury Department plants a female agent in the office of a luggage company that is suspected of smuggling diamonds.
Blackie receives a call from a friend who asks him to retrieve some money from his apartment and deliver it to him in California. Performing this good deed, he is accused of theft, but is allowed to proceed to Hollywood to help the police find a lost diamond.
US marshals Ken, Hoot and Bob stop a gang dressed as Indians from robbing the stage. After getting repairs at the relay station, but before they get to town, another trap is set, but they get away. In town, they search the stage and find nothing. But hidden in the axle grease can are diamonds. Polini wants them cut into smaller diamonds so that he can easily dispose of them. Throughout this Western, the courageous trio faces off against cunning opponents, including the gang's merciless leader (Ian Keith) and an unsuspecting banker (Karl Hackett).