What Is an Asscher Cut Diamond?
The asscher cut — also the square emerald cut — is a square step-cut diamond developed in 1902 by the Asscher Brothers of Amsterdam. 58 large facets in concentric squares with deeply cropped corners give the signature hall-of-mirrors effect rather than concentrated brilliance. A signature Art Deco shape; the patented 74-facet Royal Asscher arrived in 2001.
- Best ratio — 1.00–1.05 for the most flattering square outline.
- Clarity is critical — large open step facets reveal inclusions; we recommend VS2 minimum, VS1+ above 1.50ct.
Why ATL Luxury Jewelers for Your Asscher Cut Engagement Ring
We hold every asscher cut center stone to GIA or comparable certification — with particular attention to clarity and color, which matter more for step cuts than brilliant cuts — and source both natural and lab-grown stones across the full quality spectrum, including genuine certified Royal Asscher stones on request. Every ring includes lifetime cleaning, prong-tightening, and rhodium-plating service. We also custom-design matching diamond wedding bands and ring enhancers sized to nest perfectly with asscher engagement rings.
Asscher Cut Diamond Rings by Carat — 1ct, 2ct, 3ct, 5ct
- 1 carat — ~5.5mm × 5.5mm; the entry size where the concentric step-cut geometry is clearly readable.
- 2 carat — ~7mm × 7mm; substantial presence with the hall-of-mirrors effect at its most striking.
- 3 carat — ~8mm × 8mm; makes a statement.
- 5 carat — ~10mm × 10mm; dominates the finger with classic art-deco impact.
All sizes come in natural and lab-grown. Lab-grown asscher cut diamonds typically cost 50–70% less than natural stones of equivalent grade — making larger sizes (3ct+) significantly more attainable. We source GIA-certified stones at your target carat, clarity, color, and length-to-width ratio for in-person review within 48 hours.
