Your Face Shape: Diamond

Your Diamond Result: FAQ

How should I read the confidence number on a diamond result?

As a distance: how far your five measurements sit from the diamond row of the published prototype table, judged against how far apart the seven rows are from each other. It is not a probability and not an accuracy claim — this site publishes no accuracy figure on any page. Diamond deserves a specific caveat, because it is the shape most sensitive to measurement error of the seven. Its cheekbone width is the shared denominator of all three width ratios in the table, so one misread number moves three of the five features at once rather than one. That is a property of the geometry rather than a fault in the detector, and it is why a modest figure on a diamond result usually points at the cheekbone measurement first.

What does the range beside my cheekbone width mean on a diamond result?

It is the diamond row of the prototype table, plus or minus one standard deviation, converted onto the tape-measure scale so it sits beside your own numbers honestly. On a diamond result read the cheekbone row against the forehead and jaw rows: this is the shape where the cheekbones are the widest point and both the forehead and the jaw sit clearly inside them, so those three rows together are the result. The spread beside each row is the same width on all seven result pages, since it comes from one per-feature figure rather than one fitted per shape. One caveat belongs here rather than in a footnote — three photographs in our reference set carried the diamond label, so the centre of this range was interpolated from the published ordering rather than fitted to a measured group mean.

Is diamond against oval really the tightest pair in the published table?

Each bar is the same distance measure as the headline figure, drawn once per shape, so you can see whether diamond won outright or narrowly. They are not a ranking of faces and not the proportion of people with each shape; no prevalence figure appears anywhere on this site, because the ones in circulation state neither sample nor method. On a diamond result one bar matters far more than the others. Oval is the nearest boundary in the rule set, and the pair is the tightest in the whole published table — closer than any other two of the seven shapes. They are separated by the forehead width and the jaw width read against the cheekbones. Heart sits behind oval, and there the forehead width alone decides it.

My result says diamond with no second shape attached. Is that a safe answer?

Less safe than the absence of a second shape suggests, and it is worth saying why. No second shape means the runner-up was not close enough to flag, not that your measurement was exact — and diamond is the tightest pair in the published table with oval, so the margin here is smaller than on most shapes even when it is real. Add the measurement sensitivity: the cheekbone width is the shared denominator of all three width ratios, so one misread number moves three features at once. Add the reference-set caveat: three photographs carried this label, so the row was interpolated from the published ordering rather than fitted. None of this makes the result wrong. All of it makes the cheekbone measurement the one worth taking a second time.

Which measurement should I retake after two paths disagreed about diamond?

Whichever one measured your cheekbone width better, because on diamond that is where the disagreement will have come from. The callout near the top of the page names the feature the two paths differ on, and for this shape the honest first move is to re-take the cheekbone measurement rather than to reason about the labels — it is the widest point of the face, it is easy to read too high or too low, and it is the denominator underneath three of the five features at once. Then look at which shape disagreed. Oval is the nearest boundary in the rule set and is decided by the forehead and jaw widths against the cheekbones; heart sits behind it and is decided by the forehead width alone.

Should I choose glasses or a haircut based on a diamond result?

Re-measure the cheekbone width first, then yes. That is not hedging: the picks below are a styling convention applied to a measurement, and on diamond a single width sits underneath three of the five features, so it is the one number that can move the whole result. Take it at the widest point, tape level, from both sides to check. Then read the oval picks beside these, because oval is the nearest boundary in the rule set and the tightest pair in the published table — the two sets overlap considerably and differ mainly on how much width to add at the forehead and jaw. All of it is convention rather than fact about your face, and none of it is being sold to you.