S3·E18 Rough Diamond
Core
Aired May 5, 2026 41 min ★ 4.0/10 · 4 TMDB votes
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Synopsis
The death of a former Marine wanted for murder leads the team to a sinister plot involving a disgraced journalist, one of Australia’s richest men and lab-grown diamonds.
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Frequently Asked Questions
When did Season 3 Episode 18 of NCIS: Sydney air?
Season 3, Episode 18 ('Rough Diamond') originally aired on May 5, 2026.
How long is Season 3 Episode 18 ('Rough Diamond')?
The runtime for this episode is approximately 41 minutes.
What happens in NCIS: Sydney Season 3 Episode 18?
The death of a former Marine wanted for murder leads the team to a sinister plot involving a disgraced journalist, one of Australia’s richest men and lab-grown diamonds....
All NCIS: Sydney episode ratings Season 3 Where to watch
Top-rated NCIS: Sydney episodes
- S1E5 · Doggiecino Day Afternoon ★ 6.7
- S3E4 · The Truth Is Outback ★ 6.3
- S1E4 · Ghosted ★ 6.2
- S3E14 · Death Card ★ 5.8
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