The blazer is one of those clothing items that has all the potential to become your favorite. It will likely become your first-choice jacket for the office.
If you're on a thrifty mission, your best bet is this Blazer. It's a fantastic product, while not very expensive. Another strong contender for your wardrobe is this Diane von Furstenberg Jacket. While the price of this piece is not too high, it will definitely attract a lot of attention.