If you're a thrifty spender, this Saks Fifth Avenue Necklace will fit the bill. It's a popular choice, while not very costly. Another strong contender for your wardrobe is this Cara Necklace. While the price of this product is competitive, it will definitely attract a lot of attention. Or you can choose this Cara Necklace - be sure you'll be making a stylish addition to your wardrobe.
For something in the middle of the price range, consider choosing this Oscar de la Renta Necklace. While the price is very reasonable, this item is an easy wardrobe update.