My partner and I live in the UK. We have purchased our ring and am having it shipped to a friend in the States, who is coming to London in a few weeks. Rather than pay the exorbitant tax and duty to ship it here, he has offered to bring it over for us. Offhand, should we anticipate any problems with him bringing it through airport security? He will have the ring and a copy of the receipt. Am I correct in thinking that he would only have to declare the ring to customs if he brought it in the UK and was flying back home to the US with it? Many thanks!