If you're on a thrifty budget, this Pendant will fit the bill. It's a foolproof choice, while not very expensive. Another smart option is these Ananda Earrings. While the price is not too high, be sure that this piece will become a valuable addition to your wardrobe. You might also want to consider this Fornash Necklace. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you're looking for a happy medium, look at this Tom Binns Pearl Necklace. While the price is very reasonable, this product is an easy wardrobe update.
If you have enough to afford it, then you absolutely must check out this Tom Binns Necklace. This product seems expensive, but it's worth it.