- Does This Remind You of Anything?: Gabriel Betteridge's obsession with Robinson Crusoe, down to reading it every year and finding new insights each time, could be seen as a parody of evangelical Christians who regularly re-read the Bible in search of new meanings and interpretations.
- Fair for Its Day: Although all of the protagonists describe the Hindu priests who have tracked the Moonstone down as exotic, frightening, and untrustworthy, Collins still presents their claim to the Moonstone as true and valid, and its eventual return to them is shown as the setting right of an old wrong.
- Funny Moments:
- All of Drusilla Clack's narrative. Apparently even Collins thought so; he wrote those passages out during a very dark period in his life, and writing them out cheered him up enough to keep going.
- When Ezra Jennings as the narrator meets Gabriel Betteridge. The delightful Old Retainer of past chapters becomes a proto-Otaku for Robinson Crusoe!
- Ho Yay: There's a very strong connection between Rosanna Spearman and Limping Lucy. It seems especially pronounced on Lucy's side - she talks about how she and Rosanna were going to move to the city and "live like sisters," calls Rosanna "my darling".
- Jerkass Woobie: Unlikeable as Miss Clack is, she is trapped by 19th century convention in a position of permanent poverty, social exclusion and dependency.
- The Scrappy: Mrs. Clack. Her Holier Than Thou attitude can be just a bit too close to real life for some readers.
- Values Dissonance:
- The way Betteridge describes the treatment of his (shrewish and contrary) late wife.
- The depiction of the Brahmin priests.
- The Woobie:
YMMV / The Moonstone