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A Marquise Step Cut diamond keeps the marquise's pointed-oval outline but replaces standard brilliant faceting with broad, flat step facets — trading the marquise's usual fire for a quieter, more geometric "hall of mirrors" light pattern. Guru Diam stocks 9 Marquise Step Cut diamonds on hand, CVD lab-grown, IGI-gradable on request.
What a Marquise Step Cut is
Standard marquise diamonds are cut as brilliants — many small, angled facets designed to scatter light into fire and sparkle. A Marquise Step Cut keeps the same pointed-oval outline but facets it in broad, flat, parallel planes instead, the same faceting logic used on emerald and baguette cuts. The result is less flash and more clarity of reflection: large, mirror-like flashes rather than scattered brilliance, and a look where the stone's clarity is more visible since step facets don't break up the view into the stone the way brilliant facets do.
Why buyers choose step faceting over standard marquise
Buyers ask for a Marquise Step Cut when they want the elongated, pointed silhouette of a marquise without its characteristic sparkle — often paired with an Art Deco or vintage-inspired setting, where flat, geometric light patterns fit the aesthetic better than a brilliant's fire. It's also a clarity-forward choice: because step facets show more of the stone's interior, buyers sourcing this cut typically want higher-clarity stones to begin with.
Marquise Step Cut vs. standard Marquise Brilliant
| Attribute | Marquise Step Cut | Marquise Brilliant |
|---|---|---|
| Outline | Pointed oval | Pointed oval |
| Faceting | Broad, flat, parallel step facets | Many small brilliant facets |
| Light behavior | Large geometric flashes, "hall of mirrors" | Scattered fire and sparkle |
| Clarity visibility | More visible (fewer facets to hide inclusions) | Less visible |
| Typical use | Vintage/Art Deco-style settings, clarity-forward buyers | General bridal and fashion settings |
Sourcing Marquise Step Cut
This is a rare, low-volume specialty cut — Guru Diam holds a small on-hand count rather than deep stock, consistent with how we handle other alternative-faceting specialty items. CVD lab-grown, IGI-gradable on request, GIA available on request. Open a wholesale account for live pricing and current availability.
Frequently Asked Questions
What is a Marquise Step Cut diamond? A marquise (pointed-oval) outline diamond faceted with broad, flat step facets instead of standard brilliant faceting — producing large, geometric light flashes rather than scattered fire.
How is it different from a regular marquise diamond? A standard marquise is cut as a brilliant, with many small facets for maximum sparkle. A Marquise Step Cut uses the same broad, parallel faceting as an emerald or baguette cut, giving a flatter, more mirror-like light pattern.
Why would a buyer choose step faceting over brilliant faceting on a marquise? Step faceting suits vintage and Art Deco-style settings and shows more of the stone's interior clarity, since fewer facets break up the view into the stone — a deliberate trade of sparkle for clarity and geometric flash.
Is Marquise Step Cut a common shape? No — it's a rare specialty cut held in small on-hand quantities rather than a stocked-deep staple.
Are Marquise Step Cut diamonds certified? IGI-gradable on request as standard, GIA available on request, consistent with the rest of our specialty-cut inventory.
