If you are on a tight budget, this Belt will fit the bill. It's a popular choice, while not very pricey.
If you're looking for an item in the middle of the price range, opt for this B-Low the Belt Belt. While the price is very reasonable, this item is an easy wardrobe update. It's also worth taking a look at this Diesel Belt. This item is ultra popular and, just as importantly, not too pricey. Alternatively, opting for this Roberto Cavalli Belt is a good choice as well!
If you're not a thrifty type, look at this Jimmy Choo Belt - a great luxury choice. While you're at it, also have a look at this Belt. Yes, this item is expensive, but it does not mean it's not worth it.