If you'd rather not spend much, this Valentino Blazer will fit the bill. It's a great choice, while not very pricey. Another great option is this Valentino Blazer. While the price is rather reasonable, be sure that this piece will become an excellent addition to your wardrobe.
If you're looking for something in between pricewise, take a look at this Valentino Blazer Jacket. While the price is very reasonable, this piece is an easy wardrobe update.
If you can afford to splurge, then what you're looking for is this Valentino Blazer. It's more expensive but worth your money. Why not take a look at this Valentino Jacket too? Expensive, but worth every penny.