Women's necklaces can add a lovely, subtle accent to your look with delicate chains and subtle diamonds or pendants. For a night out or to spice up your basic white t-shirt and jeans, you could switch things up with a  bolder, statement-making necklace that has more a design element to it.  For a summery look with floaty dresses or vintage-looking blouses layered necklaces will add a feminine and bohemian feel to your summery look. Jewelry sets are a perfect way to buy a necklace and matching jewelry in one go.