If you're budget-restricted, you'll appreciate this Lagos Pendant. It's a great choice and a good investment. Another savvy option is this Aqua Pendant. It's a product you'll fall in love with which also doesn't cost a fortune.
If you're looking for something in between pricewise, we recommend looking at this David Yurman Pendant. While the price is very reasonable, this item is an easy wardrobe update. You can also consider this David Yurman Pendant. It's an attractive option both price and quality-wise.