What Is a Diamond Face Shape?
A diamond outline peaks in the middle and narrows at both ends. The cheekbones are the widest point of the face by a clear margin, the forehead sits narrower above them and the jaw narrower again below, running to a chin that comes to a point rather than a curve. That makes this the only shape here whose styling advice has to manage three heights at once — width added at the forehead and at the jaw, width kept away from the cheekbones in between — which is a different problem from the one a round or square face has, where there is a single dimension to work against. The lower half of the advice overlaps with the heart face guide, and that is not an oversight: the two shapes share a narrow jaw and a pointed chin, so the same fixes apply below the cheekbones. They part company above them, where heart has a wide forehead to keep volume away from and this shape has a narrow one to add it to.
Two things are worth saying before the numbers. We publish no percentage for how common this or any other shape is, for the reason given on every page of this site: the figures in circulation have no stated sample and no stated method, so there is nothing to check them against. And this is the shape where one measuring error matters most, because the cheekbone width is the denominator of three of the five features in the table — the face length ratio, the forehead ratio and the jaw ratio are all divided by it. That holds for every shape, but it bites hardest here, since what defines this outline is the size of the peak relative to both ends. Get the cheekbone number wrong and all three ratios move together, which can shift a result toward oval or heart.
How to Tell If You Have a Diamond Face
- Find the widest pointOn a diamond face the cheekbones are unmistakably the widest part, with the forehead narrower above and the jaw narrower below.
- Compare forehead and jawHeart has a wide forehead and narrow jaw. Diamond has both narrow. That single comparison separates the two pointed-chin shapes.
- Check the chinLike heart, the chin is pointed. The difference is entirely in the upper half of the face.
Diamond Face Measurements
Typical range = our published prototype value ± one standard deviation, from the same rule set the detector runs on.
| Feature | What it is | Typical for diamond |
|---|---|---|
| Face length ratio | face length ÷ cheekbone width | 1.22 – 1.58 |
| Forehead ratio | forehead width ÷ cheekbone width | 0.72 – 0.88 |
| Jaw ratio | jaw width ÷ cheekbone width | 0.60 – 0.84 |
| Jaw angle | angle at the jaw corner | 112° – 128° |
| Chin taper | chin width ÷ jaw width | 0.22 – 0.38 |
The table above is the prototype value this site classifies against, plus or minus one standard deviation, read at build time from the same constants the detector uses. Both ends of the face sit at the bottom of this row. The forehead ratio is the lowest of the seven, matched only by triangle; the jaw ratio and the chin taper are the lowest, matched only by heart. The face length runs past the width further than heart or triangle does, and less than oval or oblong. Read together, those rows describe an outline that is wide in the middle and narrow at the top and bottom at once — which is the whole shape, and also why it borrows advice from two other pages.
Which feature decides your result depends on which shape you are being compared with. Against heart, the forehead ratio decides it and very little else matters: both shapes end in a point, so the chin is no use at all. Against oval, the chin taper is the sharper test and the forehead ratio the second. The result page names oval as this shape's nearest boundary, and that ordering matches the rule set's own numbers rather than being a guess. The jaw angle is the feature doing the least work here — it sits at the median of the seven, so it is not what separates this shape from anything, and it is the one number not worth re-measuring three times.
Diamond vs. the shapes it gets confused with
Diamond vs Oval
Chin taper
diamond 0.22 – 0.38 · oval 0.37 – 0.53Both run longer than they are wide and both narrow toward the chin, so this pair is decided at the two ends rather than in the middle. The chin taper is the sharper test: an oval chin curves, while this one comes to a point. The forehead is the second check — on an oval it sits just under the cheekbone width, while here it sits well under it and the cheekbones become the widest point of the face by a clear margin.
Read the Oval guide →Diamond vs Heart
Forehead ratio
diamond 0.72 – 0.88 · heart 0.97 – 1.13Both end in a point and both have a jaw that measures below the cheekbone width, so the chin tells you nothing. The forehead decides the pair, and it decides it in opposite directions: on a heart outline it measures wider than the cheekbones, here it measures narrower and the cheekbones take over as the widest line. One comparison, which is why the heart guide lists the same pair from the other side.
Read the Heart guide →
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What Are the Best Hairstyles for a Diamond Face?
This section is the summary. Cuts sorted by length, the men’s version, what to avoid and which measurement each one damages, and what to say in the chair are all on hairstyles for a diamond face.
Hair on this outline has two jobs that pull in opposite directions, and most cuts fail at one of them: add width at the forehead and at the jaw, while keeping width away from the cheekbones between. The useful part is that a single decision usually handles two of the three — where the fringe goes, and where the layers start.
A side-swept or curtain fringe is the one element that changes the upper half of the face, because it fills in a hairline that measures narrower than the cheekbones below it. Length at the chin or shoulder does the equivalent work at the bottom, carrying weight into the half of the outline that narrows. Layers matter most in where they begin: layers starting at the jaw put their volume below the peak, while the same layers starting at the cheekbone put it exactly at the peak, and the two read completely differently from the front even though the cut is the same.
The styles that work against the outline are the ones that add width in the middle or remove it from both ends. Volume built at cheekbone height widens the point already widest. A slicked-back centre part exposes the hairline at its narrowest with nothing beside the jaw to offset it, which is the combination that makes this shape read as narrow as it possibly can. Very long straight hair past the shoulder adds a vertical line to an outline that already runs long, and does nothing at either end.
Women's cuts
A chin-length bob with a side-swept fringe, a shoulder-length cut with layers starting at the jaw, or a curtain fringe with length kept at the collarbone. What the three share is width at the two narrow ends and none added at the cheekbones.
Men's cuts
A side part with moderate length on top, a textured crop that leaves some weight at the front rather than clipping it back, and the sides left with enough length that the jaw does not read as the narrowest part of the silhouette. Very short sides with height on top is the combination to think about twice: it narrows the jaw further and leaves the cheekbones as the widest line by an even greater margin.
- A side-swept or curtain fringe — fills in a narrow forehead
- Chin-length or shoulder-length cuts carrying weight at the jaw
- Layers starting above the jaw rather than at the cheekbone
Hairstyles to avoid
- Volume built at cheekbone height — widens the point already widest
- A slicked-back centre part that exposes the full narrow hairline
Which Glasses Suit a Diamond Face?
Frames sit at the height of the cheekbone peak, which is the awkward part of this shape: the object that adds width to most faces adds it here at the one height the outline has most of. The way round that is to judge a frame by its brow line rather than by its lens.
Oval and round frames are the soft version of the answer — a continuous curve beside a face whose widest point is a peak, carrying their weight evenly rather than concentrating it anywhere. Browline frames are the deliberate version and the reason that shape appears on this page and not on heart's: the strong horizontal sits at the brow, above the cheekbones, so the width it adds lands on the narrow forehead rather than on the peak. If you only change one thing about your frames, that is the change with the most effect on this outline.
Width is the second variable and the more common mistake. A frame should reach at least the cheekbone width; a narrow, small frame sitting inside it leaves the cheekbones as the widest line on the face, which is the exact reading the rest of this page is working against. Heavy decoration at the outer corners does the same thing from a different direction, because the decoration sits at cheekbone height. Bridge fit is the practical detail behind both: frames that slide down move their weight onto the peak, which is the part of the fit most worth checking before buying.
- Oval
- Round
- Browline
Frames to avoid
- Narrow, small frames sitting inside the cheekbone width — they leave the cheekbones as the widest line
- Heavy decoration at the outer corners, at cheekbone height
What Beard Styles Work With a Diamond Face?
Facial hair on this outline works at the bottom only. The jaw is one of the two narrow ends and the cheeks sit beside the peak, so growth in one of those places helps and growth in the other hurts — a sharper distinction than any other shape here has to make.
Fuller growth along the jaw with the cheeks trimmed low is the version that does the most: it adds width at the narrow end while deliberately leaving the peak alone. A beard line cut across at the chin rather than let to follow the jaw down to its point stops the taper, which is the same move a rounded beard line makes on a square face for a different reason. Even stubble works as long as it is left slightly longer at the jaw corners than at the chin, a small adjustment that most people do not think to ask for.
The two failures are the mirror of those picks. A pointed goatee extends the chin point the outline already has. Full growth high on the cheeks adds width at the cheekbone peak, which is the one thing this outline has most of, and it is far easier to see from the front than from the angle most people shave at. Beyond that the lower half of this section is close to the heart face one, for the reason given at the top of the page: the two shapes share a narrow jaw and a pointed chin, so what works below the cheekbones works on both.
- Fuller growth along the jaw with the cheeks trimmed low
- A beard line cut across rather than following the jaw to a point
- Even stubble, left slightly longer at the jaw corners
Beard styles to avoid
- A pointed goatee — extends the chin point the outline already has
- Full growth high on the cheeks — adds width at the cheekbone peak
How Should You Contour a Diamond Face?
Contouring here works on the middle of the face rather than on the ends, which is the reverse of how the technique is usually taught: the peak is the place to take width out of, and both ends are places to add it back. Used the standard way alone, it makes the taper stronger rather than softer.
Contouring
A small amount at the outer cheekbones, blended inward toward the centre of the face, takes width off the peak — this is the one placement where shade goes on the widest part rather than away from it. A little at the tip of the chin shortens the point, and it needs less product than the area suggests. What not to shade is the temples and the jaw: both are already the narrowest parts of the outline, and shading them is the most common way this technique goes wrong on this shape.
Highlighting
Highlight is where the width gets added back, and it goes at the two ends: the centre of the forehead and along the jaw. The usual column down the centre of the face is worth keeping modest here, because the outline already runs long and a strong vertical of light adds to that. Keep highlight off the outer cheekbones for the same reason contour goes there — light at the peak widens the widest point.
Blush placement
Place blush just below the apples of the cheeks and blend toward the centre of the face. The placement to avoid is directly on the cheekbone peak and dragged outward toward the hairline, which is where most guides put it by default: on this outline that puts colour on the widest point and extends it further toward the temple.
Makeup to avoid
- Contour at the temples or along the jaw — both ends are already the narrowest part of the outline.
- Blush placed on the cheekbone peak and dragged outward toward the hairline, which widens the widest point.
Which Hats, Earrings and Necklines Work With a Diamond Face?
Three categories that almost no face shape guide covers, and on this outline each one lands at a different height relative to the peak — a brim above it, a drop beside the narrow jaw, a neckline below the point — so the three are doing genuinely different jobs here.
Hats
A brim wider than the cheekbones is the strongest single move available to this shape, because it moves the widest line on the head above the face entirely, which is a change in the silhouette rather than a balancing of it. Rounded crowns of low to medium height work for a second reason: the outline already runs long, so a tall crown adds length without adding width anywhere. A narrow, tall crown with no brim does both of the wrong things at once — it narrows the top and lengthens the face.
- A brim wider than the cheekbones — the widest line moves above the face
- Rounded crowns of low to medium height
Hats to avoid
- A narrow, tall crown with no brim — narrows the top and lengthens the outline at once
Earrings
Rounded drops ending at or below the jaw put width at the narrow end of the outline, and fan or cluster shapes that widen toward the bottom do the same with more surface area. Long narrow drops are the placement to think about twice: they draw a vertical line down the side of the face, which lengthens an outline that already runs long and adds nothing at either end.
- Rounded drops ending at or below the jaw — width where the outline narrows
- Fan and cluster shapes that widen toward the bottom
Earrings to avoid
- Long narrow drops that draw a vertical line down the length of the face
Necklines
A scoop or wide round neckline puts a horizontal line under the narrow jaw; a boat or off-the-shoulder neckline does the same thing higher up and is the stronger version when the jaw itself measures very narrow. A deep narrow V is the one to think about twice, because it continues the chin point downward and adds length at the same time — the two directions this outline has least use for, in a single line.
- Scoop or wide round necklines — a horizontal line under the narrow jaw
- Boat and off-the-shoulder necklines — the same horizontal, higher up
Necklines to avoid
- A deep narrow V — it continues the chin point and lengthens the face further
Celebrities with a Diamond Face Shape
Rihanna
Cheekbones reading clearly wider than both the forehead above and the jaw below, with the chin coming to a point — the peak in the middle is what places this outline in diamond rather than heart.
Halle Berry
A narrow hairline and a narrow jaw either side of a wide cheekbone line, with the face length running past the width rather than sitting close to it.
Jennifer Lopez
The same gradient at both ends with a pointed chin. A useful example because the forehead is narrow rather than wide, which is the single detail that separates this shape from heart.
Megan Fox
Cheekbones as the widest point with the forehead visibly narrower above them — the comparison that settles diamond against heart, and the one worth checking in a photograph before accepting either label.
Johnny Depp
The same proportions with facial hair added, which makes this a useful example of the beard advice above: fuller along the jaw and trimmed low on the cheeks, rather than filled in at the peak.
Diamond Face Shape: FAQ
How do I know if my face is diamond or heart?
Measure the forehead against the cheekbones, because the chin will not tell you anything: both shapes come to a point and both have a jaw measuring below the cheekbone width. On a heart outline the forehead measures wider than the cheekbones; here it measures narrower and the cheekbones become the widest point of the face. That single comparison is the whole difference, and it is why the heart guide lists this pair from the other side.
How do I know if my face is diamond or oval?
Two checks, and they usually agree. The chin on an oval curves, while here it comes to a point — this is the sharper of the two tests. The forehead on an oval sits just under the cheekbone width, while here it sits well under it. These two shapes sit close together in the rule set, so a borderline result is genuinely borderline rather than a mistake: the result page reports both with the margin against each and a lower confidence, and the tape-measure calculator gives an independent second read on the same numbers.
Do high cheekbones mean I have a diamond face?
No, and the two get merged constantly. High cheekbones describes where the bones sit vertically; this shape is about how the cheekbone width compares with the forehead and the jaw above and below it. A face can have prominent, high cheekbones and measure oval, because the forehead and jaw are close to the same width, and a face can measure diamond with cheekbones that are not especially high. The classifier reads ratios and has no feature for height off the jaw line at all.
Why does the cheekbone measurement matter so much on this shape?
Because it is the denominator of three of the five features: the face length ratio, the forehead ratio and the jaw ratio are each divided by it. That is true for every shape, but it bites hardest here, since what defines this outline is the size of the cheekbone peak relative to both ends — the three ratios sharing that denominator are exactly the three that decide it. Measure across the widest point of the cheekbones with the tape level, and take it twice; the step-by-step guide covers the placement and the mistakes that skew it.
Do I have to add width at the forehead and jaw if I have a diamond face?
No. Every recommendation on this page describes how weight and lines interact with this outline; none of it is a correction and none of it is a reason to stop wearing something you like. A slicked-back centre part, narrow frames and a pointed goatee all take the taper further rather than offsetting it, which is a styling decision with a recognisable look attached to it. If something you already wear is not on the list, that is not evidence against it.
Can a diamond face shape change over time?
The bone structure underneath does not change in adulthood, so the cheekbone peak stays where it is. The ratios we measure can still move. Weight change alters cheek fullness and jaw definition, which shifts the jaw width and the chin taper — and on this shape both of those are already at the bottom of the table, so a small change moves the result further than it would elsewhere. Age changes soft tissue distribution along the jaw. Hair changes what a photograph measures without changing your face at all, which is why the detector asks you to push it back.
Is a diamond shape of face the same as a diamond face shape?
Yes. Diamond shape of face and diamond face shape are the same label written in two orders. The wording does not change what is measured: a narrow forehead and jaw with the cheekbones as the widest line, and a chin that tapers to a point rather than a flat edge. Both phrases point to the same row in the table above.