Turbo Marmoratus - Help Identify

[paul monfils]

Yes, these are "pearled" Turbo marmoratus, which means the outer layer of the shell has been ground away to reveal the underlying natural pearl layer, and the shell has then been polished to create a decorative item. The top photo on this page shows what the natural shell looks like:

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I have seen large specimen quality shells - that would mean natural condition with the operculum present - for prices similar to that which you mentioned. I have also seen some offered for about half that. I don't know what a gift shop would ask for a pearled specimen.