i'd suggest you better declare it at the airport and pay the taxes involved in your country of arrival to ensure that these won't be lost. Of course, there are premiums for these also, if, you declare it at the airport. One of my friend, wanting to save, tried to put his jewelries in his suitcase only to find out it's missing when he unpacked. So his loss is bigger.

Otherwise, keep it in your pocket in a coin purse, if it's not that big quantity...