Brandon Oxfords. They are marked down from $67 to $45 and are available in most sizes between 6 toddler and 3 big kid. $45 is not cheap, but I have not seen anything lower for months. These would be perfect for a little girl as well... mine will be sharing with her brothers.
See all of the classic offerings from Petits Marcheurs here at Gilt. And if you need some dressy clothes to go with these shoes, have a look at this post.