Sending the right message at an interview

I have a job interview in 30 minutes. The front page of the newspaper is announcing thousands of more local layoffs. I have just put on a new interview suit (grey) and a cream silk shirt, hoping to send a warm-but-serious-job-candidate message. Now the fun part: Which jewelry? Which piece says warm, nurturing (its a p.r. job on behalf of a children's organization) but also mature, serious, competent? We Brightonistas know that every piece says something different. I'm thinking pearls... but not just pearls. (That says boring.) Ah, perfect: Balladry. Heart, butterfly, bird and pearls. Whimsical, warm and professional. Somewhere there is a woman who designed this for me, for today. Thank you. If today goes well, it may just become my lucky bracelet.