If you're a thrifty shopper, this P.A.R.O.S.H. Necklace will fit the bill. It's a great choice, while not very pricey. Another nice option is this Necklace. While the price is rather reasonable, be sure that this piece will become a great addition to your wardrobe. You might also want to consider this Ginette Necklace. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you want to splurge, then you absolutely must check out this Valentino Necklace. This piece seems expensive, but it's well worth it. While you're at it, also have a look at this Shourouk Necklace. Yes, this item is expensive, but it does not mean it's not worth it. In this price range, you can also check out this Lanvin Necklace. You won't regret the money spent!