Update
The chinese source mentioned by Dave doesn't sell to the UK because they have an exclusive deal with a uk company.
One distributor is selling five shells for £80!!!!! (am I in the wrong business?) I have also tweeted, facebooked onto the pages of any companies I could find, written a blog on the P website and briefed the head of the British Pearl Association.
Urge all of you to post exposing the nonsense to anyone you can find on facebook, which is where it seems to be spreading fastest.
The cheapest shells I could find were 82cents each.
btw pages of listings on alibaba
Did someone not ask about vantel pearls recently - they are promoting the pyramid from what I could see - search pearl opening on google. since it is in USA over to you