Step Cut Marquise Diamonds: A Buyer's Guide

What a Step Cut Marquise Actually Is

A marquise diamond is the long, pointed oval shape, wide in the middle and tapering to a point at each end. A step cut marquise takes that outline and facets it the same way an emerald cut is faceted, with parallel, rectangular facets running in rows rather than the triangular and kite-shaped facets you see on a brilliant marquise.

The result is a stone that reads as long, flat planes of light rather than sparkle and fire. People search for this shape because they have seen an emerald cut they love, want a more dramatic finger-covering silhouette, and are told marquise only comes in brilliant form by most catalogs.

That is not true, but it is true that step cut marquise is a special order item almost everywhere. Bespoke Carat gets asked about it often enough from Search Console data alone, 53 impressions in 30 days at an average position of 10.6, that it is clearly real demand with few sellers actually stocking it.

Step Cut vs Brilliant Cut Marquise

The two cutting styles are not interchangeable and the choice changes how the stone behaves, how it photographs, and how forgiving it is of inclusions.

Neither style is objectively better. Buyers who want maximum sparkle for the carat weight usually pick brilliant. Buyers who want the quieter, architectural look that matches an emerald cut center or an Art Deco setting pick step cut, and this is the shape Bespoke Carat's cutting team fields the most custom requests for.

Clarity and Color Standards for Step Cuts

Step cuts are unforgiving. The open table and long parallel facets act like a window into the stone, so any inclusion sits in plain view instead of being scattered by small facets.

Bespoke Carat's own cutting team's take: we will not put a stone below VS1 clarity into a step cut marquise over 1 carat, because at that size an SI stone's inclusions become visible to the naked eye under normal light. For anything under 0.75 carats we can work with a clean VS2, but we tell every client this upfront rather than let them find out after the stone is cut.

Color follows the same logic. Bespoke Carat recommends:

• D to F for buyers who want a completely colorless stone with no warmth visible through the open facets
• G to H for buyers who want excellent value and cannot see a difference once the stone is set
• I to J only if the setting is yellow or rose gold, which masks warmth that would otherwise be visible in white metal

Carat for carat, color and clarity matter more in a step cut marquise than they do in a brilliant round or a brilliant marquise, because there is nowhere for a flaw or a tint to hide.

Materials and Certification

Every stone Bespoke Carat cuts into a step cut marquise starts as a lab-grown diamond, grown by either CVD (chemical vapor deposition) or HPHT (high pressure, high temperature) methods. Both methods produce a stone that is chemically, physically, and optically identical to a mined diamond, and both are recognized as diamond, not simulant, by the Federal Trade Commission's jewelry guides and by the Gemological Institute of America.

Bespoke Carat issues an IGI (International Gemological Institute) report with every loose stone above 0.30 carats, stating carat weight, color, clarity, cut, and growth method. For stones below that weight, certification is available on request but adds to both cost and turnaround, so most of our wholesale buyers skip it on melee and small accent stones and rely on our internal QC instead.

Bespoke Carat's own grading desk's rule of thumb: any step cut marquise going into a one-of-a-kind engagement ring gets certified, no exceptions, because a buyer paying for a custom center stone deserves a document that travels with it.

Sizes, Specifications, and What We Keep in Stock

Step cut marquise is not a shape Bespoke Carat holds in deep stock across every size, because demand is steady but not high volume. What we do keep on hand and cut to order:

• Length to width ratio: standard marquise runs 1.75:1 to 2.25:1. We cut to 2:1 by default unless a client specifies otherwise
• Carat range: 0.25 carats up to 3.00 carats from stock rough, larger on custom order
• Table and depth percentages: we cut to 60-65% table and 58-62% depth for step cut marquise, slightly shallower than brilliant marquise to maximize the flat-plane light effect
• Point protection: we round the points very slightly on all step cut marquise stones meant for rings, since a true sharp point chips easily in daily wear

If a step cut marquise is not quite right for your design, Bespoke Carat's Oval Diamonds line gives a similar elongated look without the pointed ends, and it is a shape we keep in much deeper stock for faster turnaround.

Custom Cutting and Fancy Shape Work

Step cut marquise sits in the same category as the other fancy shapes Bespoke Carat cuts on request. If you are already working with us on something like the Criss Cut Lab Grown Diamond, Pentagon Cut Lab Grown Diamon, or Octagon Cut Lab Grown Diamond, you already understand our process for unusual shapes, since step cut marquise follows the same path.

Custom cutting steps at Bespoke Carat:

1. Rough selection. We choose rough with the clarity and dimensions needed for a clean step cut, which for marquise means selecting for length more than for typical round-friendly proportions.
2. CAD mapping. We map the facet pattern and proportions in CAD before cutting, and send this to the client for approval on any order above $2,000.
3. Cutting and polishing. A skilled cutter hand-finishes the step facets, since the parallel rows must be perfectly even or the stone reads as lopsided.
4. Grading. Internal QC checks carat weight, symmetry, and clarity grade before the stone ships or moves to certification.
5. Certification (optional). IGI grading adds 5 to 10 business days depending on current lab volume.

Lead Time and Minimum Order Quantity

For private clients commissioning a single engagement ring, Bespoke Carat sets no minimum order. One stone, cut to your specification, is a normal order for us.

For wholesale buyers, Bespoke Carat's minimum order quantity on step cut marquise is 10 pieces per size and quality combination, because cutting setup and QC time do not scale down well below that. Typical lead times:

Rush orders are possible but add 20 to 30% to the base price and are only available when Bespoke Carat already holds suitable rough in inventory.

Pricing Bands

Pricing on step cut marquise from Bespoke Carat depends mainly on carat weight and clarity, with a smaller adjustment for exact length to width ratio since more elongated stones waste more rough per carat of finished weight.

As a rough guide for loose, lab-grown, IGI-certified stones:

• 0.50 carat, G-H color, VS clarity: $380 to $520
• 1.00 carat, G-H color, VS clarity: $900 to $1,250
• 1.50 carat, G-H color, VS clarity: $1,600 to $2,100
• 2.00 carat, D-F color, VVS clarity: $3,200 to $4,000

Wholesale pricing on volume orders from Bespoke Carat runs 15 to 25% below these per-stone figures, scaling with order size and how far in advance we can plan the cutting schedule.

Packaging and Shipping

Bespoke Carat ships loose stones in sealed, tamper-evident parcels with the certification document enclosed. For wholesale orders we pack by size and quality batch with a packing list matching each parcel to its invoice line, which matters when a retailer is checking in 30 or 40 stones against a purchase order.

International shipping from Bespoke Carat is handled with full insurance and tracked, signature-required delivery. We ship regularly into the US and Canada and build customs documentation into the shipment so retailers are not stuck handling that paperwork themselves.

A detail that catches first-time wholesale buyers off guard: Bespoke Carat has found that a parcel of 20 step cut marquise stones in mixed sizes takes longer to pack correctly than 20 identical round stones, because each size and ratio needs its own verification pass before it goes in the box.

How to Request a Quote

Getting an accurate quote from Bespoke Carat on step cut marquise takes more detail upfront than a round brilliant, simply because the shape has more variables.

What to have ready when you reach out:

• Carat weight or finger coverage you want (we can help translate "wants it to look like 1.5 carats" into actual weight)
• Preferred length to width ratio, or tell us you want our standard 2:1
• Color and clarity preference, or your budget per stone and we will recommend the best combination
• Quantity, for wholesale orders
• Setting type, if you already know it, since that affects point protection and girdle thickness

Bespoke Carat responds to quote requests with a written specification and price within 1 to 2 business days for standard requests, and within 3 to 5 days for orders needing custom rough sourcing.

Frequently Asked Questions

Is a step cut marquise more expensive than a brilliant cut marquise of the same carat weight?

Usually yes, by roughly 10 to 15%, because step cutting requires cleaner rough and more precise hand finishing to keep the parallel facets even. Bespoke Carat sees the gap narrow at smaller carat weights where clarity requirements are less strict.

Can I get a step cut marquise in a fancy color lab-grown diamond?

Yes, though fancy color step cut marquise is a longer lead time item through Bespoke Carat, typically 6 to 8 weeks, since fancy color rough suitable for step cutting is harder to source than colorless rough.

Will the bowtie effect be worse in a step cut marquise?

It can look different rather than worse. The bowtie in a step cut is a darker, more defined band across the center, while in a brilliant cut it is softer and broken up by extra facets. Bespoke Carat's clients are often split, with some preferring the cleaner line of the step cut bowtie.

Do you sell step cut marquise melee for pave or accent stones?

Yes, Bespoke Carat sells small quantities on request, though step cutting is unusual for melee under 0.10 carats since the facets are hard to execute at that scale. Most accent work in this shape uses sizes from 0.10 to 0.25 carats.

What setting styles work best with a step cut marquise center stone?

East-west bezel settings and simple prong settings that do not crowd the points tend to work best, since they let the flat facet planes show. Bespoke Carat's custom design team also sees vintage-inspired and Art Deco settings pair naturally with the architectural look of step cutting.

Can I combine a step cut marquise center with brilliant cut side stones?

Yes, this is a common combination and one Bespoke Carat cuts regularly, pairing a step cut marquise center with round or tapered brilliant baguettes on either side for contrast between the quiet center and sparkling accents.

Work With Bespoke Carat

Step cut marquise is a shape most sellers either do not stock or do not cut well, which is exactly the gap Bespoke Carat built its custom cutting process to fill. Whether you need one certified center stone for a client's ring or a wholesale batch sized and graded to your store's standards, we can scope it accurately once we know your carat, clarity, and quantity targets.

Reach out to Bespoke Carat with your specifications and we will send a written quote and realistic lead time within 1 to 2 business days.

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