Forehead Shape Guide

Diamond Forehead

Narrow and tapered, widest through the temples

·5 min read·Forehead Shape Guide
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Written by Naeem Ullah·Facial Feature Analyst, faceshapedetector.app·Reviewed September 2026

A diamond forehead is comparatively narrow, tapering inward toward the hairline rather than staying broad and flat like a square forehead. The widest point sits through the mid-temple area rather than at the very top or along the brow line, which creates a delicate, angular upper-face profile distinct from the other forehead shapes.

What Is a Diamond Forehead?

A comparatively narrow forehead tapering inward toward the hairline, with the widest point through the mid-temple area.

01Identification

Key Characteristics of Diamond Forehead

  1. 1Narrower overall width
  2. 2Tapers inward toward the top
  3. 3Widest point through the mid-temple
  4. 4Delicate, angular upper profile

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02Most-Confused Type

Diamond Forehead vs M-Shaped Forehead — What's the Difference?

A diamond forehead is defined by overall width tapering inward toward the top, with the widest point through the mid-temple, while an M-shaped forehead is defined specifically by its hairline outline — a central peak with receding temples. The two traits can occur independently or together.

Not sure which applies to you? Use our free AI forehead shape detector for an instant result. You can also read the M-Shaped Forehead guide directly.

03In Styling & Grooming

Where the Diamond Forehead Reference Comes From

A narrower, temple-widest forehead profile is a recognized variant in facial-proportion classification, generally paired with fuller framing hairstyles that add visual width where the forehead naturally tapers.

04Styling Tips

How to Style Diamond Forehead

Hairline Tip

A rounded, fuller fringe style softens the taper and adds balance to the upper face

Skincare Note

Temple areas on a diamond forehead are more visible — keep them well-moisturised and exfoliated

05FAQ

Diamond Forehead — Frequently Asked Questions

What makes a forehead "diamond"-shaped?

A comparatively narrow forehead that tapers inward toward the top, with the widest point sitting through the mid-temple area rather than at the brow line or hairline.

What hairstyles suit a diamond forehead?

Full, rounded fringe adds visual width, and volume at the temples balances the taper. Severe centre-parted styles tend to narrow the face further rather than balance it.

How should I care for the temple area on a diamond forehead?

Temple areas are more visible on this shape since it's the widest point — keeping them well-moisturized and gently exfoliated helps maintain an even appearance there.

Is a diamond forehead the same as a diamond face shape?

They're related but distinct — a diamond face shape describes the whole face with cheekbones as the widest point, while a diamond forehead specifically describes the upper third tapering toward the top with width at the mid-temple.

What fringe styles work best for a diamond forehead?

A rounded, full fringe adds visual width across the narrower top section, helping balance the natural taper without needing any change to the hairline itself.

Does a diamond forehead suit glasses frames differently?

Frames with detailing or width concentrated at the upper corners can help balance a narrower forehead, similar to the frame logic used for diamond face shapes more broadly.

How common is a naturally diamond-shaped forehead?

It's less frequently discussed than rounder or flatter forehead shapes, in part because the narrow-top, wide-temple taper is a more subtle trait that's easier to miss without close measurement.

What hair parting suits a diamond forehead best?

A centre part can sometimes emphasize the narrowing at the top, so a soft side part with some volume is often recommended instead to add balancing width.

Can updos work well with a diamond forehead?

Yes, especially styles with volume or face-framing pieces left down near the temples, which help maintain the illusion of width at the point where the forehead is naturally widest.

Does eyebrow shape matter more for a diamond forehead?

Fuller, slightly extended eyebrows can help add width at the brow line, complementing a diamond forehead's narrower upper taper in a similar way to how they're recommended for diamond face shapes.

What is the most common hairstyling mistake for a diamond forehead?

A severe, tightly pulled-back style that fully exposes the narrow top is the most common mistake, since it emphasizes the taper rather than balancing it with added width.

Do headbands suit a diamond forehead well?

Wider, more structured headbands tend to add helpful width at the point where a diamond forehead is naturally widest, complementing rather than competing with the shape.

How does a diamond forehead pair with different fringe lengths?

Longer, side-swept fringes tend to work better than very short, blunt ones, since they add soft width gradually rather than creating an abrupt line across the narrower upper section.

Is a diamond forehead easy to confirm without professional help?

Measuring the width at your hairline, mid-temple, and brow line yourself can be tricky to judge precisely, which is why an AI-based detector or a stylist consultation tends to give a more reliable answer than eyeballing it.

Does a diamond forehead pair with any particular hair color placement?

Lighter highlights concentrated near the temples can add the illusion of extra width at the forehead's widest point, complementing the natural taper with color rather than cut alone.

What sunglasses or eyewear complement a diamond forehead?

Frames with a wider or more detailed upper rim can help visually balance a narrower forehead, echoing the same principle used for styling diamond face shapes with eyewear more broadly.

06Related Shapes

Related Forehead Shapes

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