Thank you very much, will have a look online. I've left it a bit late, we fly home on Wed but will see what I can do. We were in Queen's Street on Friday but I don't remember Marshalls. We did look in one of the shops, it seemed quite a lot of money and I have no idea of their value.
I am on holiday in NZ and was looking at some blue pearls - from the paua, I think. Thought it might be a nice idea as a souvenir of our holiday and was just wondering if you knew anyone who had some for sale?
Thanks and regards