The blazer is one of those wardrobe items that is bound to become your favorite. It will likely become your first-choice coat for work hours.
If you'd rather not spend much, Nic+Zoe Blazer will fit the bill. In this price range, you can also look at James Jeans Blazer. You might also want to consider this Blazer. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you're not the one to skimp on clothes, then you absolutely must check out Balmain Blazer. While you're at it, also have a look at this Maison Margiela Blazer. Yes, this item is expensive, but it does not mean it's not worth it. And one more item you might be interested in is Akris Blazer. 'Cause you deserve nothing but all the finer things!