The diamond is of great religious significance as well as being extremely valuable, and three Hindu priests have dedicated their lives to recovering it.
Later that night, the diamond is stolen from Rachel's bedroom, and a period of turmoil, unhappiness, misunderstandings and ill-luck ensues in a complex plot to explain the theft, identify the thief, trace the stone and recover it.
In July 2016, a new adaptation of The Moonstone was announced, starring John Thomson as Sergeant Cuff and Sarah Hadland as Drusilla Clack.
[1] Billed as an afternoon drama, it was scheduled at an earlier time to appeal to a younger audience as part of the BBC's #LoveToRead initiative.
Jasper Rees of The Daily Telegraph gave the show a positive review, highlighting the way in which each episode focused on a different character and complimenting Wringer and Hadland's performances.