Just recently got engaged, other half swiped an old ring of mine to use as a size guide. Ring seems to fit fine, except when my hands are cool then it is very loose and I am totally paranoid that I am going to lose it. Have been back to the jeweller to see what he thinks - do I need a smaller size but he thought it was fine as it was. However, I just cannot relax and am convince I'm going to lose it somewhere so am thinking I might get it made very slightly smaller, depending on the cost obviously, I haven't a clue about this - is it a big deal, what price would I be looking at? Its an 18carat white gold solitaire.