Podcast Summary

Podcast: Choice Classic Radio Detectives | Old Time Radio
Episode: Yours Truly, Johnny Dollar: The Shankar Diamond Matter (Original Air Date: 02/15/1959)
Release Date: September 1, 2025

Overview

This classic episode features America's "fabulous freelance insurance investigator," Johnny Dollar, as he is drawn into a high-stakes case centered around a legendary gemstone, the Shankar Diamond. Invited by Martha Mayfield Merriman—a shrewd, wealthy matriarch—to attend her son's Southern society wedding, Johnny’s true mission is to safeguard the million-dollar diamond rumored to bring good luck. As old secrets and family ties unravel, Johnny must sift through a house full of possible suspects, culminating in a suspenseful confrontation and a surprisingly clever twist.

Key Discussion Points & Plot Developments

The Invitation & Setup

• [00:35 – 01:25] Johnny is contacted by Steve Kilmer from Providential Life and Casualty, who invites him, at Martha's request, to attend her son Edgar's wedding.
  • “Listen, Johnny, how’d you like to attend a wedding?... she insists that you be among those present at the ceremony.” – Steve, [00:13]
• Johnny is immediately curious about the unusual nature of the invitation and suspects Martha may foresee trouble.

Meeting with Martha Mayfield Merriman

• [02:56 – 06:03] Johnny visits Martha in her New York brownstone; their playful banter suggests a longstanding friendship.
  • “Turn me down, huh? ... I’ve already proposed to you.” – Martha, [03:09]
• Martha reveals she plans to wear the Shankar Diamond ring at the wedding and believes it will bring the couple good luck, despite knowing its million-dollar value and attracting thieves:
  • “Sure. I always do. Some of the top jewel thieves in the country have tried to snatch that rock.” – Martha, [05:36]
• She mentions her trusted staff, especially Larkin the butler (who has the safe combination and is about to retire).

The Journey South

• [09:28 – 10:58] Johnny and Martha fly to Greensboro, North Carolina, with the diamond. Martha hints that her new chauffeur, Eric Chatterley—a distant cousin of Larkin—may not be trustworthy.

Suspicion & Motive

• [10:59 – 12:15] Martha confides to Johnny her suspicions about Eric:
  • Eric's father was a notorious jewel thief.
  • She caught Eric “casing” the wall safe.
  • Eric has only been with her for a few months, recommended indirectly through family ties.

Wedding & The Scene of the Crime

• [13:40 – 16:39] At the Southern plantation, festivities unfold with high society and old wealth on display. Johnny remains alert, keeping an eye on Eric and mingling with the other guests.
• [16:39 – 17:31]
  • During the lavish reception, the lights suddenly go out after Johnny glimpses a shadowy figure (Eric) outside.
  • Martha screams—her diamond is stolen, and she’s found unconscious.

Investigation & The X-ray Revelation

• [17:32 – 18:50]
  • Johnny organizes a search and focuses suspicion on Eric, who is arrested following an x-ray that shows the diamond in his stomach.
    • “Look for yourself. … the diamond is sitting right there in the middle of his stomach.” – Police Chief, [18:37]
  • Johnny notes, however, that something is off—the stone in Eric’s stomach is only an imitation!

The Twist Unraveled—Larkin's Betrayal

• [19:11 – 22:11]
  • Back in New York, Johnny exposes Larkin:
    • Larkin, trusted by Martha and with access to the safe, had long ago replaced the real Shankar Diamond with a high-quality fake (stress glass) and used Eric as a pawn.
    • “So he evolved another scheme to have the fake one stolen by his distant cousin, Eric.” – Johnny, [21:14]
    • Larkin confesses and returns the real diamond.
  • Johnny explains:
    • “Genuine diamonds are completely trans to X-rays. So the diamond’s safe and sound and Larkin and his dearly beloved cousin are in the clink.” – Johnny, [22:15]
  • Martha is shocked but grateful, and Johnny ends with a wry reference to his own headache from the post-case celebration.

Notable Quotes & Memorable Moments

• Martha’s playful proposal:
  “Turn me down, huh? Well, then I’ll just have to wait a couple of years and try you again.” – Martha, [03:09]

• On the Shankar’s reputation:
  “What? … That thing’s worth close to a million, isn’t it?” – Johnny, [04:57]
  “That’s what the insurance company says.” – Martha, [04:59]

• Suspicion cast on Eric:
  “I think the only reason Eric ever took a job with me was to get his hands on that diamond.” – Martha, [10:55]

• The x-ray twist:
  “The outline of that stone is just as clear. … But, Chief, that’s not the Shankar diamond.” – Johnny, [18:40]

• Larkin’s calm confession:
  “And you won’t need to destroy my luggage. I’ll fetch you the diamond. … If you hadn’t discovered the one Eric stole was paste, I’d never have got onto you.” – Larkin, [21:10]

• Johnny’s detective insight:
  “Genuine diamonds are completely trans to X-rays.” – Johnny, [22:15]

Key Timestamps

• [00:35] — Johnny is asked to attend the wedding by Steve Kilmer.
• [02:56] — Playful banter with Martha Mayfield Merriman.
• [05:36] — Martha admits she expects a theft attempt.
• [10:59] — Martha’s suspicions about Eric revealed.
• [16:39] — The Shankar Diamond is stolen during the wedding reception.
• [18:40] — X-ray shows an imitation diamond inside Eric.
• [19:11] — Johnny exposes Larkin’s role in the switch.
• [21:10] — Larkin confesses and retrieves the real diamond.
• [22:15] — The story wraps up with Larkin and Eric arrested.

Tone and Atmosphere

• Witty, brisk, and charming, particularly between Johnny and Martha.
• Tightly plotted with classic mystery twists and a Southern high-society setting.
• The episode mixes suspense, humor, and clever deduction, embodying the vintage radio detective style.

Conclusion

"The Shankar Diamond Matter" exemplifies the wit, suspense, and intricate plotting that define Yours Truly, Johnny Dollar. Listeners are treated to a lively interplay of suspects, red herrings, and a classic double-cross—culminating in a smart reveal that only a true insurance investigator (and his trusty x-ray machine) could solve.

For fans of Golden Age radio or detective stories, this episode is a sparkling gem—pun fully intended!