For example, adding white pearl strands to this casual dress instantly makes it more formal.
Pearls can even make shorts look dressy.
Pearls with jeans is a funky, eclectic look.
Black pearls are more casual than white pearls, but they still look sophisticated.
If your wardrobe tends to be pretty casual, then you should consider getting a pearl necklace with the pearls spaced out, since that looks less formal than the classic pearl strand necklace.