If you're a frugal shopper, your best bet is this Chan Luu Pendant. It's a fantastic product, while not very pricey. Another great option is this Marni Pendant. While the price is rather reasonable, be sure that this piece will become a worthy addition to your wardrobe. Or you can choose this Majorica Pendant - be sure you'll be making a stylish addition to your wardrobe.
If you can afford to spend a little more, we've got your back with this Lagos Pendant. This piece is likely to become a total wardrobe staple. You can also take a look at this Lord & Taylor Pendant. It's an attractive option both price and quality-wise.
If you're looking at it like an investment piece, then you won't be disappointed if you check out this Assael Pendant. It's an expensive but smart option. Why not take a look at this Carolina Bucci Pendant too? Expensive, but worth every penny.