A Dutch marquise diamond is an elongated hexagon: two long straight sides that run parallel to each other, and from each end of those a shorter straight edge that angles in to meet at a point, cut in the brilliant style so that it sparkles like a marquise. It is not a marquise with different proportions. A marquise has two smoothly curved sides that sweep from point to point; a Dutch marquise has six straight edges meeting at six corners, so the outline reads as geometry rather than as a boat. The name is a trade name, not a shape any laboratory defines, and a grading report describes it as a hexagonal modified brilliant. On the hand it does what every elongated shape does, covers more finger for the carat than a round and lengthens the line of the hand, with a sharper, more modern edge than the marquise. At Clairamor the Dutch marquise is in the picker as its own shape, 56 lab-grown stones from $1,102 at 1 carat on October 1, 2026, and 17 of our settings are cut for it from $950 in 14k gold. Below: the exact geometry, how it differs from a marquise and from a step-cut hexagon, what the report says, how big each carat weight looks, the ratio, the points and the prongs that protect them, the settings we make for it, and what a finished ring costs.
Dutch marquise diamonds at a glance
| Outline | An elongated hexagon: two long straight sides, parallel to each other, and four shorter angled edges that bring the outline to a point at each end |
| Faceting | Brilliant, for sparkle; the same outline with step facets is a different stone, the elongated hexagon |
| On the report | Geometry, not the name: IGI writes "Hexagonal Modified Brilliant"; the words Dutch marquise never appear |
| Against a marquise | The same two points and close to the same length for the weight; straight sides instead of curves; fuller through the middle, because a hexagon carries its width along the whole center section |
| Ratio | No official range; ours run 1.82 to 2.16, median 2.03, the same band as a classic marquise |
| Size | 1 carat about 9.8 by 5.1 mm; 2.4 carats 12.4 by 6.8; 4.2 carats 15.8 by 7.6 |
| Points | Two, like a marquise, so the setting caps each tip: our prong heads carry a prong over each point and our bezels cover them in metal |
| Price | Stones from $1,102 at 1 carat, $1,684 at 2.4 carats, $2,489 at 4.2; settings $950 to $2,400 in 14k; a 2.43 carat solitaire $2,634 complete |
What a Dutch marquise diamond is
Start with the outline, because the outline is the definition. A Dutch marquise is a long, slim hexagon. Its two long sides are straight and run parallel to each other; from each end of those sides a shorter straight edge angles inward, and the two angled edges meet at a point. Six edges, six corners, two of them the points. Three things are true of every correctly cut Dutch marquise, and they are worth stating plainly because the term gets used loosely: the ends are pointed, never rounded off or clipped to a flat edge; the long sides are straight, not curved; and the corners where the long sides meet the angled edges are real corners, not a gentle transition. If a stone sold under the name has smoothly curved sides, it is a marquise. If its ends are rounded, it is neither. On our stones the straight middle section runs a little more than half the length of the stone, which is what gives the shape its fullness through the middle; the proportions vary a little from cutter to cutter, and the photograph on each stone's page shows the exact outline.
Inside that outline the faceting is a brilliant's: triangular and kite-shaped facets arranged to throw light back in flashes, which is what gives the shape the chunky, lively sparkle it is known for and why it reads well in low light. The same six-sided outline can also be cut with long parallel step facets, and that stone is sold as an elongated hexagon; it has the glassy, hall-of-mirrors look of an emerald cut and is a different purchase. Ours are brilliants. As for where the shape came from, the honest answer is that nobody can document it. You will read that it descends from an antique "Rupee cut" or from eighteenth-century European cutters; we have not found a source that stands up, and neither has anyone else we have read, so we do not repeat the story. What is verifiable is recent: the name has circulated among cutters and merchants for elongated hexagonal brilliants for several years, and it stuck.
What the grading report says
Dutch marquise is a trade name. No laboratory defines it, no standards body has adopted it, and it will not appear on a GIA, IGI or GCAL report. The report describes what the lab measured instead: on the IGI reports for our stones the shape line reads "Hexagonal Modified Brilliant" (report LG838622719, our 1.07 carat D Internally Flawless, issued September 21, 2026, measures 9.78 by 5.12 by 3.32 mm), and the measurements give the length, width and depth in millimetres, from which you get the ratio. IGI prints no cut grade on these reports, as it does not for most shapes outside the standard set; it grades polish and symmetry, and every one of our 56 stones carries Excellent for both, with no fluorescence. That is confirmation, not a discrepancy, and it is the whole answer to the question people search most often, whether the Dutch marquise is a real cut. It is a real, repeatable geometry cut into real diamonds and certified by independent laboratories; what it is not is an official shape name, which is also true of most named cuts, from the radiant to the moval. Our certification guide explains how to read the report and confirm the number on the lab's own site, which is the right habit with any stone sold under a cut name, ours included.
Dutch marquise vs marquise
The two are close cousins, and the confusion is fair. Both are elongated, both come to a point at each end, both face up long for their weight and both need their points protected. The one difference is the long sides: curved on a marquise, straight on a Dutch marquise. From that one difference the rest follows.
| Marquise | Dutch marquise | |
|---|---|---|
| Long sides | Smooth, continuous curves; a navette or boat | Straight and parallel, joined to the points by angled edges; a hexagon |
| Ends | Pointed | Pointed |
| Line on the hand | Soft, curved, classic | Angular, geometric, modern |
| Report term | Marquise Brilliant | Hexagonal Modified Brilliant |
| Ratio | Classic 1.75 to 2.15; ours cluster 1.85 to 2.15 | No official range; ours run 1.82 to 2.16, median 2.03 |
| About 2.5 carats, October 1, 2026 | 2.51 ct, $1,704; 13.6 x 7.1 mm | 2.43 ct, $1,684; 12.4 x 6.8 mm |
| In the picker | More than 1,300 stones from 1 carat | 56 stones, 50 of them 3 carats and up |
| Settings | 45 designs | 17 designs |
Choose between them by the line you want on the finger, because everything else is close. The marquise is the classic and the softer of the two; the Dutch marquise is the same idea drawn with a ruler, and because it is uncommon it is the one nobody else at the table will be wearing. Our marquise guide covers the curved version in full, including the bow-tie and the ratio, and most of it applies here; the marquise collection has the 45 settings for it.
How big a Dutch marquise looks, carat by carat
The table lists the least expensive Dutch marquise at each weight in our picker on October 1, 2026, D to G color and IF to VS2 clarity, with its measurements, beside the least expensive marquise, oval and round of the nearest weight that day.
| Dutch marquise | Length by width | Ratio | Marquise | Oval | Round |
|---|---|---|---|---|---|
| 1.07 ct | 9.8 x 5.1 mm | 1.91 | 1.00 ct: 10.3 x 5.3 mm | 1.01 ct: 8.3 x 5.6 mm | 1.02 ct: 6.5 mm |
| 1.50 ct | 11.0 x 5.6 mm | 1.97 | 1.52 ct: 11.8 x 6.0 mm | 1.50 ct: 9.0 x 6.6 mm | 1.50 ct: 7.3 mm |
| 2.43 ct | 12.4 x 6.8 mm | 1.82 | 2.51 ct: 13.6 x 7.1 mm | 2.53 ct: 11.2 x 7.6 mm | 2.50 ct: 8.8 mm |
| 2.89 ct | 14.8 x 6.9 mm | 2.15 | 3.09 ct: 14.9 x 7.6 mm | 3.03 ct: 11.9 x 8.1 mm | 3.15 ct: 9.3 mm |
| 4.19 ct | 15.8 x 7.6 mm | 2.07 | 4.10 ct: 16.0 x 8.5 mm | 4.16 ct: 12.9 x 8.9 mm | 4.02 ct: 10.2 mm |
| 5.31 ct | 17.2 x 8.4 mm | 2.05 | 5.14 ct: 17.0 x 9.0 mm | 5.00 ct: 13.9 x 9.6 mm | 5.01 ct: 11.0 mm |
Weight for weight, a Dutch marquise faces up a little smaller than a marquise: 9.8 mm long against 10.3 at a carat, and 12.4 against 13.6 around two and a half carats. Two things explain it. A hexagon fills more of its length-by-width box than a boat shape does, so the same weight needs a slightly smaller box; and these stones are cut a little deeper, 63 to 69 percent against 60 to 64 for the marquise stones in our picker. From 4 carats up the lengths match and the Dutch marquise runs narrower. It is still longer than an oval or a round at every weight: a 1 carat Dutch marquise at 9.8 mm is longer than a 3 carat round at 9.3, and the 4.19 carat at 15.8 mm is longer than a 5 carat oval at 13.9. A size 6 finger is about 16.5 mm across at the ring, so the 4 carat stones span nearly the whole finger and the 5 carat, at 17.2 mm, a little more. Our carat size chart has the other shapes at every weight, and the size simulator puts them on a hand.
Ratio, symmetry and the points
The length-to-width ratio comes off the report's measurements, length divided by width, and with a Dutch marquise it is a matter of taste rather than a rule, because no laboratory or trade body has published a range for it. A higher ratio reads longer and more dramatic, a lower one broader and fuller. Our 56 stones run 1.82 to 2.16 with a median of 2.03, and 50 of them sit between 1.85 and 2.15, the band most marquise diamonds occupy; the example on Stienhardt's IGI report, 9.49 by 5.15 mm, is 1.84. What matters more than the number is symmetry, which the outline makes unforgiving: the two points should sit on one line down the middle of the stone, the two long sides should be the same length, and the four angled edges should match in pairs. A corner that sits a hair higher on one side than the other shows from across a room, so look for a symmetry grade of Very Good or better and look at the stone, not the stock image. Like every elongated brilliant, a Dutch marquise can show a bow-tie, the dark band across the middle where the facets reflect the viewer; judge it face-up on the picker's photograph and video of the exact stone and pass on any that is wide and black.
The points are the vulnerable part, exactly as on a marquise, and the answer is the same: a prong over each tip, or a rim. Every prong head we make for a Dutch marquise carries six prongs, four claws at the corners where the long sides meet the angled edges and a V-shaped cap over each point; we checked all fourteen prong designs on their renders. The bezel and the split cathedral bezel wrap the whole outline in metal, and the half bezel caps both pointed ends and leaves the long sides open. Set that way it wears like any prong-set diamond, with a prong check every year or two and the ring off for the gym, the garden and any work with tools or ropes.
Settings for a Dutch marquise: what we make
We make 17 settings for the Dutch marquise, in nine metals (14k and 18k white, yellow and rose gold, 14k and 18k two-tone, and platinum), from $950 in 14k; the Dutch marquise collection has all of them. Every price below is the setting without the center stone, which you choose from the picker; 14k yellow and rose cost the same as 14k white, and the engraved designs cover the top three quarters of the band and leave the palm side plain.
| Setting | How it holds the stone | 14k | 18k | Platinum |
|---|---|---|---|---|
| Solitaire | Six prongs on a 2 mm band, a cap over each point | $950 | $1,050 | $1,150 |
| Bezel | A metal rim around the whole hexagon | $950 | $1,100 | $1,200 |
| Half bezel | Metal caps over both pointed ends, the long sides open | $950 | $1,100 | $1,200 |
| Cathedral | Six prongs, shoulders rising to the head | $1,000 | $1,150 | $1,250 |
| Tulip style cathedral | Six petal prongs on cathedral shoulders | $1,000 | $1,150 | $1,250 |
| Split shank tulip style | Six petal prongs on a split band | $1,000 | $1,100 | $1,200 |
| Hidden halo | Six prongs braced by a diamond-set rail beneath the stone | $1,050 | $1,200 | $1,300 |
| Tulip style hidden halo | Six petal prongs braced by a diamond-set rail | $1,050 | $1,200 | $1,300 |
| Cathedral hidden halo | Six prongs, cathedral shoulders, a diamond-set rail | $1,100 | $1,250 | $1,350 |
| Bubble band hidden halo | Six prongs, a diamond-set rail, bezel-set accents along the band | $1,200 | $1,350 | $1,450 |
| Pavé cathedral hidden halo | Six prongs, a diamond-set rail, pavé along the band | $1,250 | $1,350 | $1,450 |
| Pavé band | Six prongs on a pavé-set band | $1,450 | $1,650 | $1,750 |
| Art deco | Six prongs over channel-set baguettes | $1,850 | $2,200 | $2,300 |
| Split cathedral bezel | A full bezel on a split cathedral band | $2,000 | $2,175 | $2,300 |
| Heirloom cathedral | Six prongs, an engraved cathedral band | $2,050 | $2,400 | $2,600 |
| Engraved cathedral | Six prongs, an engraved band and shoulders | $2,200 | $2,500 | $2,800 |
| Vintage inspired | Six prongs, an engraved vintage band | $2,400 | $2,650 | $2,750 |
The solitaire and the tulip style cathedral show the outline best, with nothing beside the stone; the bezel and the half bezel suit a hand that works, with the points under metal; the four hidden halos add sparkle beneath the stone without touching the outline, and the rail braces the prongs; the pavé, art deco and engraved bands bring the band into the design. We do not make an east-west setting or a three stone for the Dutch marquise, and a full halo is a custom quote. The settings guide compares every setting type we make.
What a Dutch marquise engagement ring costs
The setting is $950 in 14k gold for the solitaire, the bezel and the half bezel, $1,000 to $1,250 for the cathedrals and the hidden halos, and $1,450 to $2,400 for the pavé, art deco and engraved designs, with the 18k and platinum prices in the table above. The stone is chosen separately and is usually the larger half of the bill. In our picker on October 1, 2026, the Dutch marquise stones ran from $718 for a 0.88 carat D VVS1, the only one under a carat, and $1,102 for a 1.07 carat D Internally Flawless, to $7,696 for the largest at 7.29 carats; most of the inventory sits at 3 carats and above. The two 1 carat stones are both D Internally Flawless, the top of both scales, which is why the carat-for-carat price sits above a marquise at that weight: a 1 carat D VVS2 marquise was $750 the same day. From about 2.5 carats, where the inventory thickens, the two shapes price alike, $1,684 for a 2.43 carat Dutch marquise against $1,704 for a 2.51 carat marquise, and $2,489 for a 4.19 carat against $2,296 for a 4.10 carat marquise. The lab-grown market as a whole carries no premium for the cut: Stienhardt, which has sold it longest, listed IGI-graded Dutch marquise stones from $451 at 1.01 carats on September 26, 2026.
| Carats | Stone | Grade and size | With the solitaire, 14k |
|---|---|---|---|
| 1.07 | $1,102 | D IF, 9.8 x 5.1 mm | $2,052 |
| 1.39 | $1,431 | D IF, 10.5 x 5.6 mm | $2,381 |
| 2.43 | $1,684 | E VVS2, 12.4 x 6.8 mm | $2,634 |
| 2.89 | $2,023 | E VVS2, 14.8 x 6.9 mm | $2,973 |
| 3.72 | $2,701 | E VVS2, 14.2 x 7.8 mm | $3,651 |
| 4.19 | $2,489 | F VS1, 15.8 x 7.6 mm | $3,439 |
| 5.31 | $3,161 | F VVS2, 17.2 x 8.4 mm | $4,111 |
| 7.29 | $7,696 | F VVS1, 18.7 x 9.3 mm | $8,646 |
Prices in the picker move with the inventory, so treat the table as a dated snapshot; the pricing guide has the current picture across shapes.
Who a Dutch marquise suits
Someone who wants the length and presence of a marquise with a sharper, more architectural line; someone who likes geometry on the hand, the way an emerald cut or a hexagon wearer does, but wants brilliant sparkle rather than the calm of step facets; and someone who would rather not wear the shape everyone else is wearing, because the Dutch marquise is uncommon enough that most jewelers cannot show you one. It suits a long finger as any elongated shape does, and its fuller middle keeps it from looking like a sliver, which a slim marquise can. If the curves of a marquise have always felt a little soft to you, this is the stone that keeps everything you liked about the shape and changes the one thing you did not.
Where Clairamor fits
The Dutch marquise is in our picker as its own shape. On October 1, 2026, that was 56 lab-grown stones, every one IGI-graded with Excellent polish and symmetry and no fluorescence, D to F color and IF to VS1 clarity, from $1,102 at 1 carat, each with its photograph, video and the full report. Seventeen of our settings are cut for it, in nine metals from $950 in 14k, every prong head capping both points and every bezel covering them. Every price on this page is the setting without the center stone. Every ring carries our lifetime warranty and an appraisal, with a complimentary resize within 100 days for clients in the USA.
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Frequently asked questions
What is a Dutch marquise diamond?
An elongated hexagonal diamond: two long straight sides that run parallel, and four shorter angled edges that bring the outline to a point at each end, cut in the brilliant style. It has a marquise's length and points with straight sides instead of curves, so the line is geometric rather than soft.
Is the Dutch marquise a real diamond cut?
Yes. It is a specific, repeatable geometry cut into real diamonds and certified by independent laboratories. What it is not is an official shape name: Dutch marquise is a trade name, so the report describes the geometry, for example hexagonal modified brilliant, rather than printing the name.
What is the difference between a marquise and a Dutch marquise?
The long sides. A marquise has two smoothly curved sides that sweep from point to point, a boat shape; a Dutch marquise has straight sides that meet the angled ends at a corner, a hexagon. Both are elongated with pointed ends, both look long for their weight, and both need a prong over each point.
Are Dutch marquise diamonds more expensive?
Not for the cut itself. In our picker on October 1, 2026, a 2.43 carat Dutch marquise was $1,684 against $1,704 for a 2.51 carat marquise, and a 4.19 carat $2,489 against $2,296 for a 4.10 carat marquise. At 1 carat ours was $1,102 against $750 for a marquise, but that stone is a D Internally Flawless; the gap is the grade, not the shape.
Does a Dutch marquise have a bow-tie?
It can, like every elongated brilliant, because the facets across the middle reflect the viewer's head and shoulders. It is usually faint; judge it face-up in ordinary light on the picker's photograph and video of the exact stone, and pass on a wide black one.
Dutch marquise vs elongated hexagon: what is the difference?
The faceting. Both share the six-sided pointed outline; the Dutch marquise is a brilliant, cut for sparkle, while the elongated hexagon is a step cut with long parallel facets and the glassy, hall-of-mirrors look of an emerald cut. Ours are brilliants.
What settings suit a Dutch marquise?
We make 17: the solitaire, cathedral and tulip style cathedral to show the outline, the bezel and half bezel for a working hand, four hidden halos for sparkle beneath the stone, and the pavé, art deco and engraved bands. All start at $950 in 14k, every prong head carries a prong over each point, and every bezel covers them.
What ratio should a Dutch marquise be?
There is no official range, so treat it as preference: higher reads longer and more dramatic, lower reads fuller. Ours run 1.82 to 2.16 with a median of 2.03, the same band as a classic marquise. Judge the outline in the photograph rather than chasing a number.
How big is a 2 carat Dutch marquise?
About 12 mm long and 6.5 mm wide, between our 1.5 carat at 11.0 by 5.6 mm and our 2.43 carat at 12.4 by 6.8 mm on October 1, 2026. The same day a 2.51 carat marquise was 13.6 by 7.1 mm, a 2.53 carat oval 11.2 by 7.6 and a 2.5 carat round 8.8 mm across.
How much does a Dutch marquise engagement ring cost?
The setting is $950 in 14k for the solitaire, the bezel and the half bezel, up to $2,400 for the vintage-inspired band, with the stone chosen separately. With picker stones on October 1, 2026, a 1.07 carat solitaire was $2,052 complete, a 2.43 carat $2,634 and a 4.19 carat $3,439.
Is a Dutch marquise a lab-grown diamond?
Ours are. Every Dutch marquise in our picker is a lab-grown diamond, graded by IGI, laser-inscribed with its report number on the girdle, and identical in material and hardness to a mined diamond. The cut has also been made in mined stones; the name describes the shape, not the origin.
Related reading
- Marquise diamonds and engagement rings: ratios, the Dutch marquise, bow-ties, settings and prices
- Elongated engagement rings: oval vs emerald vs radiant vs marquise vs moval
- What is a tulip setting?
- Bezel engagement rings: full, half and faux bezel compared
- Hidden halo vs halo: which looks bigger and costs less?
- Types of engagement ring settings, explained, with prices
- Diamond certification companies: GIA vs IGI vs HRD
- Diamond carat size chart: 0.5 to 5 carats in millimeters
- Which diamond shape looks the biggest?
- Lab-grown diamond pricing guide
