What is a step cut gemstone?
By Jared James · Last updated 21 May 2026
Definition
A step cut is a style of gemstone faceting where the facets are long, rectangular and arranged in parallel rows that step down from the table toward the girdle, like the steps of a staircase. Rather than the triangular facets of a brilliant cut that maximise sparkle and fire, step cuts produce a quieter, more elegant optical effect, often described as a hall of mirrors, where you see deep, clear reflections of light. The most recognised step cut diamonds are the emerald cut and the Asscher cut.
Frequently asked questions
- What is the difference between a step cut and a brilliant cut?
- A brilliant cut uses triangular and kite-shaped facets arranged to maximise light return and produce intense sparkle and fire. A step cut uses long rectangular facets that create a glassy, mirrored effect with less fire but great clarity and depth. The two approaches suit different aesthetics.
- Which diamond cuts are step cuts?
- The emerald cut is the most common, along with the Asscher cut, which is a square version with more cropped corners. Baguette diamonds are also step cuts. All three have those distinctive parallel rectangular facets and a sleek, architectural appearance.
- Do step cuts show inclusions more than brilliant cuts?
- Yes. The large, open facets of a step cut give a clear view into the stone, so inclusions and colour tints are easier to see than in a brilliant cut where the sparkle helps conceal them. Most jewellers recommend a higher clarity grade for step cut diamonds for this reason.
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