I would not call it oversized, but it still adds something to an outfit. The gold tone looks clean and the shell detail gives it enough detail. The pendant sits in a flattering spot. I would wear it more for everyday styling than for something very formal.
I wore this with a plain top and it made the outfit feel more finished. I especially like the shell detail; it makes the necklace feel more personal without being too much. The pendant sits in a flattering spot. It has been easiest to wear with vacation outfits and summer looks.
Good for daily wear, but I would be careful storing it so it does not rub against other jewelry. The design is still cute, especially the shell detail, but it is not a heavy or super dramatic piece. The length works well with crew necks and open necklines. I would recommend it if you like softer jewelry details.