Vivienne Westwood Pearl Necklace

I just bought DOWN choker of pearls, what I am trying to make sure it is real? Is there a particular difference?

You can locate it by looking at the number beside the $. Similarly, if you bought in the street or in a store, it is false.

I bought mine at the Vivienne Westwood shop in England where I live and what I noticed is that counterfeits are sold in what looks like cardboard boxes if that makes sense, I have never purchsed some VW something wrong, while true here in boxes made of hard rubber, where did you buy? Flag