If you are on a tight budget, your best bet is this French Connection Necklace. It's a fantastic piece, while not very expensive. Another strong contender for your wardrobe is this Vanessa Mooney Necklace. While the price of this piece is rather reasonable, it will definitely attract a lot of attention. You may also want to look at this Dannijo Necklace. This item is not expensive either, but it will make a difference in your wardrobe.
If you're looking for something in between pricewise, you're in luck with this Ann Demeulemeester Necklace in stock and waiting for you. You are bound to love this item. You might also want to look at this Marni Necklace. It's an attractive option both price and quality-wise. Alternatively, opting for this Necklace is a smart choice as well!