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Asscher Cut Diamonds
The Asscher — a square step cut with cropped corners and a distinctive 'windmill' facet pattern spiraling to the culet — is pure Art Deco. Patented in 1902 by Amsterdam's Asscher brothers, it remains the connoisseur's square.
Like its emerald-cut cousin, the Asscher's open facets showcase clarity and color honestly: choose VS2+ clarity and G+ color for a stone that looks like liquid glass. Its nearly square outline suits both vintage and starkly modern settings.
1,004 stones
Asscher Cut Diamonds: common questions
Asscher vs. princess — what's the difference?+
The Asscher is a step cut (broad flashes, vintage character) with cropped safe corners; the princess is a brilliant cut (fiery sparkle) with sharp corners. They share only the square outline.
Why does the Asscher look 'deep'?+
Its high crown and concentric facets create the signature endless-hallway effect — you look into the stone rather than at it. That depth means slightly less face-up spread per carat.
What clarity does an Asscher need?+
VS2 or better keeps the open table eye-clean. The windmill pattern draws the eye to the center, exactly where inclusions would sit.
Keep exploring
New to diamonds? Start with our guide to the 4 Cs or design a complete ring.