If you are on a tight budget, why not check out this Scully Blouse. It's a popular product for a reasonable price. Another strong contender for your wardrobe is this Foxcroft Blouse. While the price of this item is not very high, it will definitely attract a lot of attention.
If you want to treat yourself, then what you're looking for is this Etro Blouse. It's more expensive but worth your money.