If you're after a thrifty option, your best bet is this Just Cavalli Belt. It's a popular piece, while not very pricey. You can also take a look at this Orciani Belt. It's an item you'll fall in love with which also doesn't cost the earth. Or you can choose this Belt - be sure you'll be making a stylish addition to your wardrobe.
If you're looking for something in between pricewise, consider buying this Dolce & Gabbana Belt. While the price is very reasonable, this item is an easy wardrobe update. You can also check out this Orciani Belt. It's an attractive option both price and quality-wise. And do check out this Riccardo Forconi Belt! It's a very popular item and good value for money.