If you can’t spend much, your best bet is this BaubleBar Necklace. It's a terrific item, while not very costly. Another strong contender for your wardrobe is this Asos Necklace. While the price of this product is rather reasonable, it will definitely attract a lot of attention. You might also want to consider this Carolee Necklace. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.