If you're not planning on spending much, you'll appreciate this Nic+Zoe Blazer. It's a fail-safe choice and a great investment. In this price range, you can also look at this City Chic Jacket. It's also a popular item and won't break the bank. You might also want to consider this Mural Blazer. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
For something in the middle of the price range, look no further than this Theory Blazer. This item doesn't cost the earth, but definitely deserves a place in your wardrobe. You might also want to check out this Joseph Blazer. It's an attractive option both price and quality-wise. Alternatively, opting for this Lala Berlin Blazer is a good choice as well!