You have a diamond face shape when your cheekbones are the widest point on your face, notably wider than your forehead and jaw, and your forehead is the narrowest measurement, narrower even than your pointed chin.
This guide gives you the checklist, the measurements behind it, six real examples and the styling logic that softens cheekbones this wide. Face shape here is a styling heuristic sourced from geometry, never a beauty ranking.
How to Tell: The Diamond Face Checklist
A diamond face shape shows up in four measurements: forehead width, cheekbone width, jaw width and face length. The test that separates diamond from every other class is which width measures widest and which measures narrowest. A diamond face keeps the cheekbones out ahead of both the forehead and the jaw, and keeps the forehead as the narrowest of the three, narrower than the jaw. That double contrast, cheekbones far wider than the other two measurements and the forehead the narrowest point on the face, is what a diamond class checks first. The jaw itself narrows again below the cheekbones, ending in a chin that reads pointed rather than flat or rounded, the second-narrowest point on the face after the forehead. The checklist below states each relationship in the same four terms used across every shape guide on this site.
This is the geometry the detector reads, not a style or a look. On a front photo the classifier compares face length against width and the three widths against each other, and the diamond pattern is the combination described here. Hair, expression and camera angle change how a face reads to people; they also change the landmarks, which is why the scan asks for a level, front-facing photo.
- Cheekbone width as the widest measurement on the face, notably wider than both the forehead and the jaw
- Forehead width as the narrowest of the three widths, narrower than the jaw
- Jaw width narrowing steadily from the cheekbones down toward the chin
- Face length sitting in the middle of the range, not the measurement that decides this class
- A chin that reads pointed, the second-narrowest point on the face after the forehead, not the widest
A mirror test can misjudge these widths by an inch or more, depending on angle and lighting. The AI Face Shape Detector measures the same four spans from a photo in your browser, on-device, with no upload.
The Measurements Behind It
Four measurements decide every face shape class: forehead width, cheekbone width, jaw width and face length. For a diamond face, cheekbone width is the widest of the three spans, measuring notably more than either the forehead or the jaw. Cheekbone width, the bizygomatic width, runs across the face just below the outer corners of the eyes, and on a diamond face this single span decides the class more than any other measurement. Forehead width runs across the widest visible point of the forehead; on a diamond face it is the narrowest of the three widths, narrower even than the jaw. Jaw width runs from one gonial angle to the other, the points where the jawline turns up toward the ears, then narrows again below that point into a chin that reads pointed, the second-narrowest point on the face after the forehead. Face length runs from the hairline to the chin and does not decide this class either way.
Diamond is most often confused with heart, since both classes narrow toward a pointed chin. The two split on which width reads widest: a heart face keeps the forehead as the widest point, while a diamond face keeps the cheekbones widest instead, with the forehead narrower than both. Square is the other pairing worth naming: a square face keeps forehead, cheekbone and jaw width close to each other, while a diamond face has cheekbones measuring notably wider than the other two.
The measurement most people get wrong by hand is forehead width, since hair along the hairline hides its true edge and narrows the reading further than the bone underneath actually is. This AI facial analysis corrects that automatically: it locates the hairline and the temple edge from the landmark mesh itself, on-device, before a single span is measured.
Diamond Faces at a Glance
The diamond class includes faces widely and consistently described that way across published style coverage, not one reference face. Each name below matches at least two lines of the checklist above, not just a general impression of high cheekbones.
- Rihanna, whose cheekbones read as the clear widest point
- Jennifer Lopez, with a forehead narrower than her jaw
- Vanessa Hudgens, whose jaw narrows into a pointed chin
- Robert Pattinson, with cheekbones wider than his forehead and jaw
- Zayn Malik, whose forehead reads as the narrowest measurement
- Cillian Murphy, with a jawline that tapers to a defined chin
Every face above still varies in expression, hairstyle and camera angle, which is exactly why the four measurements, not a single reference photo, decide the class.
For Men and For Women
The same four measurements define a diamond face shape for every face, regardless of sex: forehead width, cheekbone width, jaw width and face length read the same way and cross the same thresholds. Anthropometric studies that track those four spans by sex find real differences in the raw numbers. One 200-person facial index study measured men's facial height, cheekbone width and overall facial index as significantly greater than women's [1]. The same study found the spread of shape classes across that sample was not significantly tied to sex [1]. Two presentation differences are worth naming on top of that. Cheekbone prominence often reads more pronounced in men, since average bone density and brow ridge development add visible structure at the same measured width. A receding hairline can narrow the visible forehead further in men, pulling an already narrow measurement toward an even sharper contrast against the cheekbones. Neither difference moves the face into a different class on its own.
What Flatters a Diamond Face
A diamond face carries cheekbones that measure wider than anything else on the face, so the styling logic works on the two points that read narrowest: add width at the forehead and the jaw. Volume added at the forehead, through a fringe with width across the brow or a side part that fills out the temples, brings the narrowest measurement closer to the cheekbones instead of leaving that contrast at its widest. The same principle works at the jaw: width or volume added along the jawline, whether through a cut that flares slightly at the chin or a beard filled in along the jaw itself, closes the gap from the other side. The changes to avoid run the opposite way. A style slicked back and away from the face exposes the full width of the cheekbones with nothing to balance it, and a center part with no volume at the temples does the same from a narrower angle. A dedicated hairstyle guide for diamond faces and a matching glasses guide are both coming; until they publish, the rule above carries the same logic either way, adding width at the forehead and the jaw to soften a cheekbone measurement that already stands out.
The four measurement, ratio based method this page uses traces to anthropometric facial index research [1]. That research divides face height by cheekbone width and sorts a sample into phenotype bands, rather than the seven styling classes named here. That is what the evidence says about the classification's own grounding: a measurement method drawn from a research tradition, applied here as a styling heuristic rather than a clinical one. The same source and the same four-measurement grounding apply across every face shape guide on this site, cited once here rather than repeated on each one.
Not medical advice. This page describes a styling classification, not a diagnosis, a clinical measurement, or a ranking of how attractive a face is.