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The Stienhardt Collection

Dutch Marquise Lab-Grown Diamonds

Hand-selected, certified, ready to ship

The Dutch Marquise Cut Diamond features an elongated, hexagonal silhouette with pointed ends and straight, angled sides, a distinctive, modern twist on a timeless shape.

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What is a Dutch Marquise diamond?

A Dutch Marquise is an elongated, hexagonal cut in the marquise family. It has the long, slender silhouette and the pointed ends of a classic marquise, but instead of smoothly curved sides it is cut with clean, straight angles, giving it a six-sided, geometric outline. The result is a long, graceful shape with a vintage sensibility that still reads bright and modern, with sparkle spread across a generous surface area.

Dutch Marquise vs. the classic marquise

A classic marquise has two smoothly curved sides that sweep to a sharp point at each end (the navette, or boat, shape). The Dutch Marquise keeps that elongated proportion and those pointed ends, but trades the curved sides for straight, angled ones, so the outline reads as an elongated hexagon rather than a smooth oval. It is a more geometric, architectural take on the marquise. If you love the slimming, finger-lengthening line of a marquise but want something more distinctive and modern, the Dutch Marquise is the answer.

What to look for in a Dutch Marquise

  • Length-to-width ratio: most look best between about 1.85 and 2.10; lower reads broader, higher reads slimmer. Choose by taste.
  • Point symmetry: the two ends should align so the stone doesn't look crooked once set.
  • Outline symmetry: because the sides are angled, check that the matching angles are even on both sides so the hexagon reads clean.
  • Bow-tie: like all elongated cuts, a faint dark band can appear across the centre; look for one that's minimal.

Use the filters above to dial in carat, colour, and clarity.

Dutch Marquise engagement rings

The elongated shape flatters the finger and looks larger per carat than rounder cuts, which makes the Dutch Marquise a striking centre stone. It pairs beautifully with a slim solitaire band, a delicate halo, or an east-west setting. Because the ends are pointed, a V-prong or a protective tip keeps those points safe in everyday wear. Pick your loose stone here, or explore our Dutch Marquise engagement rings.

Why buy a Dutch Marquise from Stienhardt

Stienhardt is one of the few jewellers to specialise in the Dutch Marquise, and we cut these stones in-house. Every stone is independently certified by IGI or GIA, graded for the full 4Cs, and conflict-free. Browse the collection above, all backed by free 30-day returns.

Dutch Marquise Lab-Grown Diamonds — frequently asked questions

What is a Dutch Marquise diamond?

An elongated, hexagonal cut in the marquise family: it keeps the long silhouette and the pointed ends of a classic marquise but has straight, angled sides instead of curved ones, for a more geometric, six-sided outline.

How is a Dutch Marquise different from a regular marquise?

A classic marquise has smoothly curved sides; the Dutch Marquise keeps the pointed ends but cuts the sides with straight angles, so the outline reads as an elongated hexagon. Same long, slimming line, a more geometric look.

Are Dutch Marquise lab grown diamonds real diamonds?

Yes — they're real diamonds, chemically and optically identical to mined stones, and recognized as diamonds by the FTC.

Are Dutch Marquise lab grown diamonds certified?

Yes. Every Stienhardt Dutch Marquise is independently certified by IGI or GIA and graded for the full 4Cs.

What length-to-width ratio is best for a Dutch Marquise?

Most look best between roughly 1.85 and 2.10. A lower ratio looks broader, a higher ratio looks slimmer — it comes down to personal taste.

Do Dutch Marquise diamonds look bigger than other shapes?

Yes — the elongated shape spreads weight across a larger surface, so it tends to look larger per carat than round or square cuts and elongates the finger.

What setting suits a Dutch Marquise?

Slim solitaire bands, delicate halos, and east-west settings all flatter the elongated shape. Because the ends are pointed, a V-prong or protective tip helps guard them.

Can I set a Dutch Marquise into an engagement ring?

Absolutely. Choose your loose stone, then pick a setting and we'll mount it for you.

Are Dutch Marquise diamonds more expensive?

Lab grown Dutch Marquise diamonds cost significantly less than mined diamonds of the same size and quality, so you get more stone for your budget.

What is your return policy?

Free 30-day returns on diamonds and jewelry.