If you're budget-restricted, your best bet is this Boutique Mini Skirt. It's a popular product, while not very costly. Another strong contender for your wardrobe is this Sister Jane Mini Skirt. While the price of this item is not too high, it will surely attract a lot of attention. You might also want to consider this Boohoo Mini Skirt. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you're looking for an item in the middle of the price range, look no further than this BLK DNM Mini Skirt. This item doesn't cost too much, but absolutely deserves a spot in your wardrobe. You might also be interested in this Marc by Marc Jacobs Mini Skirt. It's an attractive option both price and quality-wise. And do check out this Milly Mini Skirt! It's a very popular item and good value for money.