What's the best way for Joe to steal a diamond? Meet 'Steve'. A real-life diamond expert who chats to Joe and Tom about carrying £75 million worth of diamonds in a backpack on a plane, about laser beams, about fake diamonds and how to grow diamonds in a lab.

But he also talks about the murky side of diamonds too... which prompts Joe to call Daisy and ask for her rings back. But will she do it for ethical reasons?

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