King of Diamonds

A beautiful blonde plays off one member of a gang of diamond thieves against another in an attempt to steal two million dollars in gems for herself.

Johnny suspect an old army friend is behind the commando style raid on the London Diamond Exchange.

King must guard a cache of diamonds.

A beautiful woman and her henchman try to smuggle a sack of diamonds out of the country.

In order to trap a gang of South African diamond smugglers, Casey agrees to pose as one of the criminals.

The Illegal Diamond Buyers, a criminal cartel, plot to cause a massive drop in the price of diamonds on the world market.

Diamond thieves in four different countries stage successful prison breaks.

King suspects the owner of a tramp steamer may be smuggling diamonds in crates of tuna.

King poses as a oil tycoon to investigate a tip about a new gang of diamond smugglers.

Johnny King's efforts to end diamond smuggling are so effective that the crooks decide to eliminate him.

King learns that the chief of Havana's police is stealing diamonds from the victims of his firing squads.

King and O'Brien travel to the Orient in pursuit of a napkin ring encrusted with jewels.

King and O'Brien recover a cache of stolen gems, but the crooks plan to strike regain their ill-gotten goods.

During the confusion following a train wreck, a diamond thief makes a bid to steal diamonds from a courier's possession.

Suspecting his wife is having an affair with one of his employees, a diamond dealer asks the young man to deliver a valuable gem and then tells the police that the diamond has been stolen.

While on an airplane, a courier is robbed of a fortune in diamonds. He raises an alarm, not realizing the thief has tossed the briefcase full of gems from the plane to his awaiting accomplice on the ground.

King's ex-girlfriend, a jewel thief, considers returning to a life of crime.

Diamond smugglers use an unsuspecting magician to carry illegal gems from one location to another.

King tries to learn which of four freighters is carrying a cache of uncut diamonds.

Many years after World War II, two former servicemen have a falling out over the German crown jewels that they stole during the waning days of World War II. One man, a local politician wants to return the gems, but the other wants to sell the diamonds to the highest bidder. With the help of a beautiful but shifty French smuggler, King and Casey attempt to recover the gems before they disappear.

King helps three men escape from the Congo when a revolt in the diamond fields breaks out.

A friend of King's joins the criminal syndicate controlling criminal activity in the diamond industry.

An employee concocts a scheme to steal jewels from his elderly female employer.

A employee uses his employer's trust to steal a small fortune in industrial diamonds.

King and O'Brien seeks the help of a hip, young British singer to trap a criminal gang.

A member of a criminal syndicate develops a unique method to steal diamond jewelry.

While touring New York City, a group of West Point cadets get mixed up in a diamond robbery.

A clown supplements his meager income with petty thefts.

A criminal is released from prison after serving a fifteen year sentence.

A successful jewel thief moves to the United States and brings along a pretty confederate to distract King and O'Brien.

A crook salts a worthless piece of desert real estate with diamonds and tries to con greedy investors into buying the land.

Two hoodlums pursue a burned-out musician who found a cache of stolen gems.

When a priceless diamond is stolen, two juvenile delinquents are King's only leads to locating the stolen gem.

King investigates a Burmese man who is sponsoring a beauty contest in Miami Beach.

King investigates a man's claim to have invented an inexpensive way to manufacture synthetic diamonds.