The blazer is one of those wardrobe items that has all the potential to become your most worn thing. It will likely become your go-to coat for work hours.
If you're looking for a thrifty option, your best bet is this J.Crew Blazer. It's a wonderful product, while not very pricey. Another savvy option is this Blazer Jacket. While the price is rather reasonable, be sure that this piece will become an excellent addition to your wardrobe. You may also want to look at this Calvin Klein Blazer. This item is not expensive either, but it will make a difference in your wardrobe.