Keep your position, and the image you want to portray in mind while buying the jewelry.
Try matching your accessories with the mood of your industry along with matching it to your style.
For a secretary wishing to be seen as dependable might choose a modest charm necklace whereas an executive wishing to project strong image may choose a large round beaded necklace. Asymmetric styles might be a good fit. If it matters in your career that you be seen as slightly colorful and creative
Through lean times avoid sporting bold or flashy styles. Go light on accessories if you want to project your seriousness towards the career. The fun and funky stuff such as Doggies, fish, and anything themed are a big no as they will pull down the much required professional image that you want