Black Blazers from theOutnet
If you are on a limited budget, your best bet is this Alice + Olivia Blazer Jacket. It's a popular piece, while not very expensive. In this price range, you can also check out this Etro Blazer. It's also a popular item and won't break the bank.
If you're looking for something in between pricewise, take a look at this Y-3 Blazer Jacket. While the price is very reasonable, this item is an easy wardrobe update. It's also worth looking at this Isa Arfen Blazer Jacket. This item is ultra popular and, just as importantly, not very expensive. And do check out this Alexander McQueen Double Breasted Blazer! It's a very popular item and good value for money.
If you're in a Treat Yo' Self mood, then you absolutely must check out this Sonia Rykiel Blazer. This product seems pricey, but it's top quality. While you're at it, also have a look at this Saint Laurent Double Breasted Blazer. Yes, this item is expensive, but it does not mean it's not worth it. You might also want to consider this Alexander Wang Blazer. You won't regret the money spent!