If you're on a thrifty mission, your best bet is these Mayoral Dress. It's a great product, while not very costly. In this price range, you can also take a look at these Dress. It's an item you'll fall in love with which also doesn't cost the earth. Or you can opt for these Gap Dress. This item has all the potential to become a powerful player in your wardrobe.
If you're willing to splurge, then what you're looking for is these Burberry Dress. It's more expensive but worth your money. Another product we're drooling over is these Burberry Dress. It's pricey but you get what you pay for.