I would be as unspecific as possible. No quantities. "Fashion jewelry", $30. Then see what happens. My gut says if they haven't ripped it open to see what's in side yet, they're not going to do so after you give them this description. I could, of course, be wrong though.
But if you do this, then as I see it, you will have been consistent with the shipper's customs declaration, and so if anything gets seized, your dealer who has guaranteed delivery should reship in multiple packages.