If you're a budget-conscious shopper, your best bet is this Maison Margiela Pendant. It's a great item, while not very pricey. Another strong contender for your wardrobe is this Montblanc Pendant. While the price of this item is competitive, it will certainly attract a lot of attention. You may also want to look at this Montblanc Pendant. This item is not expensive either, but it will make a difference in your wardrobe.
If you're looking for an item in the middle of the price range, look no further than this Valentino Pendant. This item doesn't cost too much, but definitely deserves a place in your wardrobe. Also consider this Kenzo Pendant. It's an attractive option both price and quality-wise.