Asscher Cut
A square step cut with clipped corners and a concentric “hall of mirrors” pattern. This page is the short version.

What you need to know on this site
Asscher is the square cousin of the emerald cut. Broad facets show the interior, so inclusions, windowing and pattern balance matter more than they do on a round brilliant. Length-to-width near 1.00 looks classically square; anything much above ~1.05 starts reading as a short emerald.
Do not copy a round-brilliant shopping formula. There is no GIA cut grade for Asscher. You grade the outline, the concentric pattern, and the video.
Where to go next
- What is an Asscher cut
- Asscher vs emerald
- Asscher proportions
- Asscher price guide
- Proportion checker
On Naked Diamonds, stay for general 4Cs and other shapes: emerald, all shapes, 4Cs.
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Affiliate links. Confirm report numbers and watch the video before you buy.
Naked Diamonds covers all common shapes. Asscher-specific research is published at AsscherDiamond.com to keep the two sites from ranking against each other. Last updated 5 September 2026.