A hat sits directly above the forehead, which makes it one of the fastest ways to change a face's apparent proportions without cutting or growing anything. On a diamond face — cheekbones are the clear widest point; forehead and jaw are both notably narrower and close in width to each other. — the right hat shape can meaningfully rebalance the silhouette.

Construction and Fit

Construction: Close-fitting knit, no brim, sits low across the forehead and ears. Adds rounded volume at the crown and covers most of the forehead line.

Why It Suits This Shape

Why it suits this shape: Soften and add visual width at the forehead and jaw to bring them closer to the cheekbone's width, while avoiding extra volume directly at cheekbone height, which is already the face's widest point. A beanie works well here because it's angular faces that benefit from a soft, curved counterpoint up top, which is close to a direct description of a diamond face's starting proportions.

Where to Be Careful

Where to be careful: Already-round faces, where more curved volume compounds roundness.