4. The Long Pendant Necklace — We're not exactly retiring our massive bib necklaces quite yet, but the idea of a free-flowing long pendant necklace just feels slightly more relaxed…and sexy, in that '70s Jerry Hall kind of way. 

Belle Noel Pendant Necklace, $45, available at Endless; Dannijo Karmen Necklace, $245, available at Dannijo.