I'm going to be buying a diamond in the next few days. None of the vendors have quite the right setting, so I'd like to just buy the loose stone. The plan is for my fiancee to bring the loose stone over with her and we'll go setting shopping together (I like the settings here, but the diamonds aren't as good and are way more expensive). Any advice how to keep things insured up to the point it's set? Even though it's extremely unlikely anything would happen, the potential loss is too great so risking a period with it uninsured is not an option.