The world's finest ruby was stolen from the bride of Prince Kassim's great-grandfather several generations ago in India by a marauding rajah. It's now several decades later and the British have conquered India, and one day the ruby shows up for sale by a wealthy London jeweler, Sir John Garnett. Garnett has his own problems--there have been a rash of thefts of his wife's jewels, and he hires a private detective named James Brett to investigate.
as Lady Garnett
as Countess Mirtza Charkoff
as Mrs. Elsmere
as Brenda Elsmere
as Louise Jupp - Clerk at the Hotel
as Lady Garnett's Maid
as Prince Kassim
as Sir John Garnett
as Capt. Dalrymple
as Lord George Hartopp
as James Brett
as Longman - of the Diamond Gang
as Andrews - of the Diamond Gang
as Trent - of the Diamond Gang
as Duval - of the Diamond Gang
as Bentley - Sir John's Manager
as Gooch - Sir John's Clerk
as Cornish - Proprietor of Hotel
as Hans - a Porter
as Landlord of Inn
as Jack Chandler - a Tout
as Connor - Dalrymple's Man
as Duke of St. Edmunds
as Moya
as Montyghall
as Princess Wadin
