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What do you know about
diamonds
Explore the captivating world of diamonds. Learn about their origin, beauty, and the 4 Cs that define their quality. Welcome to the world of timeless elegance and enduring brilliance.
A Dutch Marquise is an elongated hexagonal cut: six straight sides, two opposing points, and no curve anywhere in the outline. Despite the name it is not a marquise. A marquise is a navette, a pointed oval whose long wings bow outward. A Dutch Marquise takes that same long two-pointed silhouette and rebuilds it entirely out of straight lines, which is why it reads architectural rather than soft. It is one of the rarest shapes in the Ronora range. Every Ronora Dutch Marquise is Excellent cut in the D-E-F colourless range.
The name causes most of the confusion. People expect a marquise and find something else entirely: a long, flat-sided stone with sharp angled corners, closer in outline to an emerald cut than to the curved navette they were picturing. That surprise is the whole appeal.
Like the marquise it is faceted as a brilliant, one of the two broad faceting styles the International Gem Society separates from step cutting. So it sparkles in small bright flashes rather than in long mirrored planes, which is unusual for a shape carrying this much straight geometry.
A Dutch Marquise is a diamond cut to an elongated hexagonal outline. Trace the girdle and you count six straight edges: a point at the top, a point at the bottom, and two flat shoulders running between them down each side. There is no curve in the outline at any stage.
That is the one fact that separates it from the shape it is named after. A marquise is a navette, French for little boat, and its two long wings bow outward in a continuous curve. A Dutch Marquise keeps the length and the two points, then replaces every curve with a flat facet meeting its neighbour at a defined angle. Our marquise vs Dutch marquise comparison shows the two side by side at actual size.
The result sits between a marquise and a hexagon. It has the finger-lengthening proportions of the first and the deliberate geometry of the second. On a grading report the shape is described by its outline and faceting rather than by the trade name, so a certificate may print something closer to hexagonal modified brilliant than the words Dutch Marquise. Ask us for the exact wording on any stone before you order.
The name points at the Low Countries, and it refers to a cutting tradition rather than to a dated invention. Antwerp and Amsterdam were the centre of European diamond cutting for centuries, and long, angular, flat-sided stones belonged to that vocabulary well before modern fancy shapes were standardised.
What survives today is a silhouette, not a fixed facet chart. A round brilliant has agreed proportions any cutter can follow. A Dutch Marquise does not. Each cutter decides how far to draw the length, how sharp to make the shoulders, and how much of the outline the two points take. That is why no two are quite alike, and why the shape has stayed rare.
A curve can absorb a small error. A straight edge cannot. On a Dutch Marquise each of the six sides is a visible reference line, so a shoulder sitting a fraction lower than the one opposite reads immediately as a lean rather than as a minor imperfection.
Check three things. Both points should sit on the same axis. The two shoulders on one side should mirror the two on the other. And the widest part of the stone should fall exactly halfway along its length. Our symmetry guide explains how this is graded.
Every long brilliant shows a darker band across the centre, where the pavilion returns your own reflection instead of light. Narrow shapes show it most, and the Dutch Marquise is narrow.
This is the single biggest quality difference between one Dutch Marquise and another, and no certificate records it, because fancy shapes receive no overall cut grade. It has to be seen. Ask and we will describe the bow-tie on the exact stone honestly before you commit to anything.
Narrow tips concentrate warmth, and a Dutch Marquise has two of them. A stone that looks white across the body can still show a tint at both ends, and the flat shoulders leading into each point make that gradient easier to see rather than harder.
Ronora Dutch Marquise diamonds are D-E-F colourless only, which keeps the points as clean as the centre.
A Dutch Marquise spreads exceptionally well. Very little of its weight hides in the pavilion, so it covers far more finger than a round of the same carat weight. Our diamond measurements guide gives the millimetre size at every carat weight, so you can see the difference before you order.
The two points are the trade. They are the thinnest part of the stone and they need protection, so a V-prong or a bezel at each end is essential rather than advisable. Clarity is more forgiving, since brilliant faceting scatters light quickly enough to conceal small inclusions, though anything sitting near a point should be avoided on durability grounds alone.
See a Dutch marquise at actual size on your own ring size, or as a stud or pendant, with Find Me Diamond, our free diamond size visualizer.
Two fine points to protect, and a flat-sided outline worth leaning into.
The first row is the comparison that actually matters, because the name sends almost everyone to the wrong shape first. The rest is context for how far this outline sits from the mainstream.
| Compared with | What that shape does better | What the Dutch Marquise does better | Choose it if |
|---|---|---|---|
| Marquise | A curved navette outline, and far more stones to choose from | Six straight sides and a sharper, more architectural line | You want the length without the curves |
| Emerald | Calm step facets, a wider face and no bow-tie | Brilliant sparkle inside a straight-edged outline | You want geometry that still fires |
| Pear | One rounded end, so only one point to guard | Fully symmetrical, and far more unusual | Symmetry matters more than the teardrop |
| Oval | Nothing to chip, and an easier cut to judge | More finger coverage and a shape almost nobody has | Rarity matters more than easy wear |
| Round | Brightest, simplest, nothing to think about | Far more spread for the same carat weight | Presence on the finger matters most |
This is a shape you choose deliberately. It asks for a V-prong at each tip, careful checking of symmetry and the bow-tie, and usually a curved band to sit beside it. In return you get an outline almost nobody else is wearing. Browse the Dutch Marquise collection, see how large it reads at every carat weight in our diamond measurements guide, or compare all twelve shapes in diamond shapes.
Millimetre measurements for a well proportioned dutch marquise at every carat weight we cut, with a round of the same weight in the last column so you can see the difference directly.
| Carat weight | Length × width | Approximate depth | A round of the same weight |
|---|---|---|---|
| 0.50 ct | 7.12 × 3.85 mm | 2.62 mm | 5.16 mm across |
| 0.75 ct | 8.15 × 4.41 mm | 3.00 mm | 5.91 mm across |
| 1.00 ct | 8.97 × 4.85 mm | 3.30 mm | 6.50 mm across |
| 1.50 ct | 10.27 × 5.55 mm | 3.78 mm | 7.44 mm across |
| 2.00 ct | 11.30 × 6.11 mm | 4.16 mm | 8.19 mm across |
| 3.00 ct | 12.94 × 6.99 mm | 4.76 mm | 9.37 mm across |
The Dutch Marquise has no published trade size chart, because it is one of our own cuts rather than an industry standard. These are Ronora's working sizes at a 1.85 ratio, and a longer or shorter ratio at the same weight shifts both figures. Set your own ratio and see the outline at true size on your screen with the diamond size calculator, then ask us for the exact measurements on the stone you want.
The share of the finger's width a Dutch marquise diamond covers set north-south, with its length running along the finger, by carat weight and US ring size. It is the stone's width divided by the inside diameter of the ring, so the same diamond looks bigger on a smaller finger.
| Carat | Size (mm) | US size 5 (15.7 mm) | US size 6.5 (16.9 mm) | US size 8 (18.1 mm) |
|---|---|---|---|---|
| 0.50 ct | 7.1 × 3.8 | 25% | 23% | 21% |
| 0.75 ct | 8.2 × 4.4 | 28% | 26% | 24% |
| 1.00 ct | 9.0 × 4.8 | 31% | 29% | 27% |
| 1.50 ct | 10.3 × 5.6 | 35% | 33% | 31% |
| 2.00 ct | 11.3 × 6.1 | 39% | 36% | 34% |
| 3.00 ct | 12.9 × 7.0 | 45% | 41% | 39% |
See a Dutch marquise on your own ring size, or as a stud or pendant, with Find Me Diamond, our free diamond size visualizer drawn at actual size.
What it does well
What to watch
The Dutch Marquise is one of the rarest shapes we cut and one of the hardest to find anywhere. Ronora currently offers five: a halo, a three stone, an east-west solitaire, a three stone with a hidden halo and an east-west bypass. Every stone is a real lab grown diamond, Excellent cut, in the D-E-F colourless range, set by hand in Surat in solid 9K, 14K or 18K gold, platinum or 925 silver, with both points properly protected. If you have a particular length-to-width ratio or setting in mind, ask and we will cut to it. Browse the Dutch Marquise collection, check the size first in our diamond measurements guide, or compare it against the other eleven shapes in our diamond shapes guide.
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