Our outfits would be nothing without the extra spark of an amazing piece of jewelry, so with Fall around the bend, we're looking out for the latest shapes and coolest colors. Since we've already covered our love for statement cuffs, slick earrings, and standout rings, we're shifting our enthusiasm toward the new breed of necklaces. Fall's new batch hones in on geometric shapes, natural elements — like stones and beads — gilded metals, and high collar silhouettes. A definite departure from last season's super-layered looks, and we like it. Check out our top 15 picks, ranging from a neon-accented leather column necklace from 3.1 Phillip Lim to a '70s-inspired wonder from Missoni, and start shopping.