Diamond Face Shape: How to Tell If You Have One
A diamond face shape is built around cheekbones that dominate: the forehead measures only 55–80% of the cheekbone width, the jaw narrows to 55–72%, and the chin sits at 40–62% of the jaw span, while face length stays in the moderate 1.15–1.42 window. The result is a narrow-wide-narrow outline: high, prominent cheekbones with tapered ends at both the hairline and the chin.
How to tell: mirror method
Tie hair back hard enough to expose the temples, stand 40 cm from the mirror, and trace the outline. A diamond silhouette has its widest point at the cheekbones, with visibly narrower spans at both the forehead and the jaw: the outline narrows, then widens, then narrows again. The cheekbones often read as high as well as wide, catching light at a point above the nostrils.
How to tell: the four measurements
- Face length: centre of the hairline to the bottom of the chin.
- Cheekbone width: outermost cheekbone point to point; for diamond faces this is the maximum width of the face.
- Forehead width: widest temple span, about 1 cm above the brows.
- Jaw width: angle of jaw below one ear to the opposite angle.
Diamond faces hold all of these windows:
- Face length ÷ cheekbone width: 1.15–1.42
- Jaw width ÷ cheekbone width: 0.55–0.72 (clearly narrower than the cheekbones)
- Forehead width ÷ cheekbone width: 0.55–0.80 (forehead the narrowest band)
What a diamond face looks like: the measurement schematic
With the measurements overlaid, the shape is unmistakable: the middle horizontal line (cheekbones) is the longest; the top line (forehead) and the lower line (jaw) are both short and of similar length to each other. The vertical length line is moderate: shorter than the face is wide at the cheeks. Connect the four endpoints and the outline is a true diamond: two long slopes in from the hairline, two long slopes out to the jaw angles, one short slope into a narrow chin.
Hairstyles, glasses and contouring for a diamond face
Diamond faces have strong natural architecture at the cheekbones; styling usually aims to soften the tapered ends and let the cheekbones be the feature.
- Hair: chin-length volume (bobs with width at the jaw, shoulder-length waves) fills out the narrow lower face. Curtain bangs and side-swept fringe widen the forehead visually to meet the cheekbones. Slicked-back styles expose the full narrow-narrow taper and are best avoided.
- Glasses: oval and cat-eye frames with detail on the brow line add width at the top; rimless styles keep the cheekbones unobstructed. Narrow rectangular frames should be skipped: they trace the same taper the face already has.
- Contouring: often unnecessary at the cheekbones themselves. If anything, a light highlight on the cheekbone peak and a touch of warmth at the temples and jawline evens out the narrow bands. Blush placed just below the cheekbone softens the peak.
Diamond vs heart: same taper, flipped
A heart face shape also tapers to a small chin, but its forehead (not its cheekbones) is the widest band (forehead ÷ cheekbones above 0.80, usually above 1.0), and the taper starts at the temples. Run the tape across your forehead and cheekbones: cheekbones wider, you are diamond; forehead wider, you are heart. If both are close with a moderate chin, check the oval face shape.
Try the free face shape detector: it ranks your three width bands in one pass.
Frequently asked questions
Is the diamond face shape rare?
Yes: in measured samples diamond is consistently the least common of the six shapes, typically under one face in ten. The combination of a narrow forehead, dominant cheekbones and narrow jaw is simply an uncommon bone structure. Many people with diamond faces misclassify themselves as oval or heart in mirrors.
Are high cheekbones the same as a diamond face?
No. High cheekbones are a feature any face shape can have; the diamond classification requires the width ratios (cheekbones wider than both forehead and jaw by 20% or more). You can have high, prominent cheekbones on an oval or heart face if the forehead or jaw runs close to the cheekbone width.
What haircut suits a diamond face most?
Anything that adds width where the face narrows: a chin-length bob with volume at the ends, shoulder-length layers that flip at the jaw, or long hair with curtain bangs. The common thread is weight at or below the jawline, which balances the dominant cheekbones above.
Why do my cheekbones look sharper in photos than in the mirror?
Front camera lenses at close range (under 30 cm) exaggerate the centre of the face and stretch the centre-to-edge gradient, which sharpens cheekbone shadows. Use the rear camera at an arm's length or farther for a true outline. In direct measurements, the cheekbone-to-forehead ratio stays the same either way, which is why measuring beats photographing for shape classification.