Black Necklaces by Free People
If you are on a limited budget, this Free People Necklace will fit the bill. It's a fail-safe choice, while not very pricey. You might also want to look at this Free People Necklace. It's a product you'll fall in love with which also won't break the bank.
If you're looking for an item in the middle of the price range, why not look at this Free People Necklace. While the price is very reasonable, this item is an easy wardrobe update.