The Beryl Coronet A wealthy banker comes to Holmes desperate to recover a valuable British gem--and to deal with his son's apparent dishonor. Details Casts Title The Beryl Coronet Release Date 1921-04-01 Runtime 02 Hours 02 Minutes Genres Mystery Crime Production Companies Stoll Picture Productions Production Countries Eille Norwood... Sherlock Holmes... Hubert Willis... Dr. John Watson... Jack Selfridge... Sir George Burnwell... Henry Vibart... Alexander Holder... Lawrence Anderson... Arthur Holder... Molly Adair... Mary Holder... Mme. d'Esterre... Mrs. Hudson...