Heart and diamond face shapes share a narrow chin but differ significantly in forehead width and cheekbone prominence. Heart faces have a broad forehead that tapers to a pointed chin, while diamond faces feature wide cheekbones with a narrow forehead and chin. Getting the proportions right in your frames is the single most effective way to bring visual balance to either shape.
How to Tell Whether You Have a Heart or Diamond Face Shape
Stand in front of a mirror and mentally measure three zones: your forehead, cheekbones, and jawline. If your forehead is the widest point and your chin comes to a soft point, you have a heart face shape. If your cheekbones are clearly the widest point, with both your forehead and jaw noticeably narrower, you have a diamond face shape. Diamond faces often have a more angular look overall, while heart faces tend to appear softer at the cheeks.
Best Eyewear for a Heart Face Shape
The goal for a heart face is to reduce the visual weight of the forehead while drawing attention toward the lower half of the face. Frames that achieve this share a few common traits.
Bottom-heavy or rimless frames keep emphasis low, balancing a wide forehead naturally.
Light-coloured or translucent acetate at the top reduces the visual mass of the brow line.
Oval and round shapes soften the angular forehead and complement the pointed chin without adding width at the jaw.
Cat-eye frames work beautifully because the upswept outer corners echo the forehead width in a flattering, intentional way.
Avoid heavily embellished top-bar frames or very wide rectangular shapes — they amplify the forehead rather than balance it.
Best Eyewear for a Diamond Face Shape
Diamond faces need frames that add width at the forehead and soften the sharp cheekbone angle, while keeping the lower face from looking overwhelmed.
Rimless and semi-rimless styles are ideal — they do not add bulk to the already prominent cheekbones.
Oval frames with a slightly wider top than bottom mirror the natural taper of a diamond face in a harmonious way.
Browline frames (also called clubmasters) draw the eye upward, visually broadening the forehead and creating proportion.
Butterfly or cat-eye silhouettes also work because they add width near the brow rather than across the cheeks.
Avoid narrow rectangular frames or very small round styles, which emphasise cheekbone width without compensating elsewhere.
Heart vs Diamond: Quick Comparison
Both shapes suit oval and cat-eye frames, but for different structural reasons. Heart faces benefit from these shapes because they bring visual weight downward; diamond faces benefit because they extend width upward toward a narrower forehead. This distinction matters when you are choosing between two frames that look similar on the shelf — always ask which part of your face you want to emphasise or de-emphasise.
Sunglasses Considerations
The same rules apply to sunglasses. Heart-shaped faces look great in classic wayfarers worn slightly low on the nose (reducing that top-heavy feel), while diamond faces suit shield-style or oversized square sunglasses that add breadth across the brow. Avoid anything that peaks or angles sharply at the cheekbone for diamond shapes — it doubles the sharpness rather than softening it.
One Practical Tip Before You Buy
Use Rimloo's virtual try-on tool to upload your photo and test multiple silhouettes side by side. Proportion differences that are hard to judge in a written guide become immediately visible when you see the frame sitting on your actual face.
