Blood Diamond is a novel about a pirate but, as the cover description makes clear, if you are conjuring up pictures of a Caribbean swashbuckler think again. A large portion of this book is based in London and Paris, not the usual haunt of pirates. However there is some nautical action, principally in the English Channel.
For those dedicated nautical fiction fans, you should not be put of by the large land based element. The principal character, Patrick Devlin, is a very believable character, far from the stereotypical pirate created by Hollywood, and the well written plot blends the land and sea elements well. It is based around the speculation which became known as the South Sea Bubble.