Look 1
Chin-Length Bob with Side Bangs
The chin-length bob with side bangs earns the top spot for diamond faces because it's the only style that simultaneously addresses both diamond face challenges: the narrower forehead and the narrower jaw relative to the prominent cheekbones. The side bangs add foreground width, the bob line adds jaw-level width.
Diamond faces are defined by cheekbone prominence, not forehead or jaw width. The ideal hairstyle creates optical width at both the forehead AND jaw so the cheekbones don't appear disproportionately wide. The chin-length bob with side bangs achieves exactly this — the bangs fill the forehead, the bob endpoint widens the jaw.
The bob should hit precisely at the chin to maximize jaw-level width. The side bangs should sweep across the forehead from a side part, not a center part. A subtle inward curve at the bob ends enhances the width-adding effect. Dark brown tones keep the focus on the face shape rather than the color.
Choose this if your face has noticeably prominent cheekbones with a narrower forehead and chin — this style will create the most balanced overall proportions. Also excellent if you've been considering shorter hair.
Avoid bobs that end above the chin — they lose the jaw-widening effect. Also avoid styles that expose the full forehead without bangs or a side part, which can make the forehead look narrower by contrast with the cheekbones.