Hi,
I think that if you're applying for a managerial job, it's perfectly OK. But if you're applying for a housekeeping job, maybe you should wear less expensive jewelry.
The interviewer may not think that you don't really need this job. She might give the job to someone who seem to need the money more than you do.
What kind of job are you applying for , if you don't mind my asking?
Good luck with the interview.