If you're looking for a thrifty option, this Brooch will fit the bill. It's a great choice, while not very expensive. Also look at this Kenneth Jay Lane Brooch. It's a product you're bound to love which also doesn't cost a fortune. Or you can choose this Nobrand Brooch - be sure you'll be making a stylish addition to your wardrobe.
If you're looking at it like an investment piece, take a look at this Brooch - a great luxury choice. While you're at it, also have a look at this Kenneth Jay Lane Brooch. Yes, this item is expensive, but it does not mean it's not worth it.