If you're looking for an affordable item, these Ankle Boots will fit the bill. It's a popular choice, while not very costly.
If you're looking for something in between pricewise, take a look at these Frye Ankle Boots. While the price is very reasonable, this product is an easy wardrobe update. It is also worth taking a look at these AllSaints Booties. It's an attractive option both price and quality-wise.