i will always take my ering and wedding band and a pair of earings (usually small diamond studs) and either a pendant or a bracelet. if we're going to a wedding or bar mitzvah or something i take a nice piece too and i leave it in the safe at the hotel the rest of the time. i sometimes aas well brign a plain gold band to put on if im going somewhere i wont wear diamonds or even to use hotel gym or whatever. i always take a small cosmetic case and as soon as all my stuff comes off it goes right in there. ive been scrambling before when a hotel fire alarm went off to gather all my stuff! also goes wout saying but NEVER pack jewellery. always keep it in ur purse if you arent wearing on the plane.