If you're after a thrifty option, this Vanessa Mooney Necklace will fit the bill. It's a great choice, while not very pricey. Another nice option is this Natalie B Choker. While the price is not too high, be sure that this item will become a great addition to your wardrobe. You might also want to consider this Ettika Choker Necklace. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you're looking for a bargain, look no further than this Fallon Choker Necklace. This item doesn't cost the earth, but absolutely invaluable in your wardrobe.