New Samsung Galaxy S3 16GB pebble blue 3 network !

I have a new Samsung Galaxy S III 16GB in pebble blue, the phone is a unused boxed upgrade from 3 network. Its from the 3 netwrok so may need to be unlocked if you want to use the handset on another network. I have my iphone and dont want to swap handsets so this one is for sale. 350.00 OR NEAREST OFFER cash on collection, or I can deliver to Norwich.