Heart face shape: the runner-up is never diamond
Widest across the forehead, narrowing through the cheeks to a small and often pointed chin. Every guide on this subject pairs heart with diamond, because both end in a point. Across the 43 faces we have measured, diamond has never once been the second-closest shape to a heart result. Not rarely. Never. This page is mostly about why that is, because the answer changes what you should be looking at.
Heart and diamond are opposite ends of one measurement
A diamond face is defined by a narrow forehead. A heart face is defined by a wide one. They share a pointed chin, and the chin is what every guide leads with, so the two get filed together as the pointed-chin shapes. Measured, they sit at opposite ends of the single number that separates them.
| Classified as | Median forehead | Median length : width |
|---|---|---|
| Heart | 0.88 | 1.41 |
| Oblong | 0.85 | 1.48 |
| Oval | 0.84 | 1.36 |
| Round | 0.85 | 1.28 |
| Diamond | 0.79 | 1.35 |
Forehead is given as a share of cheekbone width, so below 1.00 means narrower than the cheekbones. Medians across 43 distinct faces, not a population sample: these thresholds have never been calibrated against labelled faces, and the forehead is the least reliable thing a front photo gives us, because the mesh has no hairline landmark.
Now measure your own
Reading a description and holding your own face up against it is guesswork, and the descriptions overlap on purpose, because real faces do. The tool measures the four lengths in the diagram plus the jaw angle, in your browser, and shows you how close you sit to every shape rather than picking one and hiding the rest.
Watch the forehead number rather than the chin. If you were expecting heart and got oblong, compare the length before assuming the chin was misread.
Front-facing photo, even light, hair off the forehead
Your four measurements will appear here, so you can see which shape they sit closest to.
What our own classifier does with heart
Twelve of the 43 faces came back heart, second only to oval. When heart wins, the runner-up is oblong six times and oval four, with round twice and diamond never.
Length explains it. Faces classified heart have a median length-to-width of 1.41, second only to oblong's 1.48 and well above the 1.36 across all 43. A heart face, as this tool measures it, is a long face with a narrow jaw. Remove the narrow jaw and what is left is a long face, which is the definition of the shape that collects everything unremarkable or of oblong, depending on how long.
The jaw is what rules heart out, and it does so less decisively than any other shape's main cause: the jaw ratio accounts for 18 of the 43 rejections, 42 percent, against 74 percent for the forehead on diamond. Heart has a dominant cause, but a weak one, and three faces landed on the heart and oval boundary outright. The full grid of which shapes get confused with which is on the face shape chart.
How to recognise a heart face
The tell
Forehead wider than the jaw, usually by a lot. Sometimes a widow's peak, though that is hair rather than bone.
What to ignore
The chin. It is the most described feature of this shape and the least useful one, because the shape it is supposed to distinguish heart from has the same chin.
Heart face shape questions
What is a heart face shape?
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Widest across the forehead, narrowing through the cheeks to a small and often pointed chin. The forehead against the jaw is the whole comparison: a heart face has a forehead clearly wider than its jaw. A widow's peak often gets listed as a sign, but that is hair rather than bone and no measurement can use it.
What is the difference between a heart and a diamond face shape?
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The forehead, and they are at opposite ends of it. Both narrow to a pointed chin, which is why guides pair them, but the chin is not what separates them. A heart face has a wide forehead. A diamond face has a narrow one — that is the entire definition of diamond. Across the 43 faces we have measured, the ones classified heart have a median forehead of 0.88 of cheekbone width and the ones classified diamond 0.79. Pairing heart with diamond pairs them on the feature they share instead of the one that tells them apart.
Which shape does heart actually get confused with?
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Oblong, in our measurements, and length is the reason. Of the 12 faces that came back heart, the runner-up was oblong six times and oval four. Diamond was never the runner-up, not once. Faces classified heart here have a median length-to-width of 1.41, second only to oblong's 1.48. A heart face, measured, is a long face with a narrow jaw — so take away the narrow jaw and what is left reads oblong.
Is a heart face shape rare?
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Not in our results: of 43 distinct faces, 12 came back heart, second only to oval. But that is a fact about where our thresholds sit rather than about how common heart faces are. No peer-reviewed prevalence distribution exists for these categories in any population, and every percentage in circulation comes from a tool counting its own visitors.