I’m not a jewelry person, so I long ago discarded the idea of wearing a small cross around my neck in order to put more of my faith out there for people to see.  Instead, I have to rely on my lifestyle and my decision-making paradigm for people to see my faith.  I find that works and appears more genuine than a show of faith through jewelry.

I think, however, that if a person wears the jewelry, then they ought to use it to talk about their faith with interested parties, and it seems that even our atheist friends agree with that.  Reference this blind date:

After being seated, I noticed she had a cross around her neck and mentioned it. She already seemed really nervous about the blind-date situation, but when she started defending herself and insisting that she wasn’t really religious, it seemed like she wasn’t being all that genuine. I mean, if you’re wearing a cross, there must be something to it.

Brothers and sisters in Christ: Be proud of your faith!  Jesus said:

You are the light of the world. A city on a hill cannot be hidden. Neither do people light a lamp and put it under a bowl. Instead they put it on its stand, and it gives light to everyone in the house. In the same way, let your light shine before men, that they may see your good deeds and praise your Father in heaven.  (Mat 5:14-16)