It never occurred to them that they were much, much better off steering clear of diamond-beetle carapaces and claws, although they would have been amused to learn that their partner's attempt at suppositorial smuggling turned around and (ahem) bit him in the butt.
The cruise line's post-action cleanup crew quickly discovered what they had on their hands, and made off like bandits. 31st-century prices on diamonds are not especially fantastic, but a properly mounted diamond-beetle fragment with, say, a nice clock fastened to it pulls down a pretty good price. At least among the kinds of people who buy that sort of crap.