These Kate Spades are my favorite black flat, but cost $225 so they aren't for the budget conscious: I didn't see a purchase requirement or a price range on your request so I thought I'd recommend my favorite! However, please also look at my collection of cute, reasonably priced black flats. If you don't like this Kate Spade I have more of my favorites in that collection! I hope you find the perfect pair.
Initidal feedback about this particular shoe was: "Its cute but I'm looking for something all black without any pattern", she'll look at the collection though.