Eighty-three percent of women own a plain white tee. Less than 10% wear one with a necklace that makes it look intentional. That gap is the difference between “I just threw this on” and “she knows what she’s doing.” A single piece of jewelry can fix a boring outfit faster than any other accessory. No tailoring. No dry cleaning. Just a chain that changes the geometry of your neckline. Here are five specific necklaces that do the job, with the exact rules to make them work. Why a Single Necklace Beats a Whole New Wardrobe Most people buy new clothes…