You do not have to bring the entire family jewels. You can use local products or bring an array of costume jewelry.
As a reminder, do not pack anything expensive in your suitcase. Keep it with you at all times.
I prefer to wear mine and have no problem letting airport personnel use their wand for final check rather than having it disappear from the conveyor belt.
Hair and Makeup
You have skilled beautician on all the islands that will do a fabulous job of makeup and hair, all at a fraction of the cost you would pay in the United States.