Marquise lab-grown diamond reference illustration

Shape & selection guide

Marquise lab-grown diamonds.

The marquise is long, with a point at each end. Its footprint can make a strong impression, but the measured width and setting design matter as much as length. Avoid choosing solely for the largest stated millimetre dimension.

Compare sizes & budgets See the shape on a hand

A considered choice.

Reference illustrations show the silhouette, not a currently available stone.

1.00 ct · D–F · VS1–VS2

Marquise diamond

Approx. 10.50 × 5.00 mm

Estimated EU budget

From €450

VAT & delivery allowances included

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1.50 ct · D–F · VS1–VS2

Marquise diamond

Approx. 12.02 × 5.72 mm

Estimated EU budget

From €620

VAT & delivery allowances included

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2.00 ct · D–F · VS1–VS2

Marquise diamond

Approx. 13.23 × 6.30 mm

Estimated EU budget

From €910

VAT & delivery allowances included

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3.00 ct · D–F · VS1–VS2

Marquise diamond

Approx. 15.14 × 7.21 mm

Estimated EU budget

From €1,290

VAT & delivery allowances included

View diamond

Marquise diamond prices and face-up size

Compare the same D colour and VS1 clarity preference across weights. Different grades, individual dimensions and visual performance may change the final quote. A report number, material disclosure and imagery of the actual stone are agreed before ordering.

D / VS1 loose lab-grown diamond planning budgets · EUR
Carat	Approx. length × width	Guide budget
1.00 ct	10.50 × 5.00 mm	€470
1.50 ct	12.02 × 5.72 mm	€700
2.00 ct	13.23 × 6.30 mm	€1,140
3.00 ct	15.14 × 7.21 mm	€1,940

Reviewed 2026-10-04; numeric guides available until 2026-11-03. Includes delivery, import / clearance and VAT planning allowances, not a fixed tax-inclusive offer or live stock. Jewellery manufacture is excluded. Dimensions are visualiser estimates, not measurements of an available stone. Read the full pricing assumptions.

What to check in a marquise diamond

Compare both ends, shoulders and the centreline for a balanced outline.
Review centre contrast in moving imagery rather than relying on a claimed ideal ratio.
Check both tips and ask how each will be protected during setting and wear.

Plan the setting around the stone

North–south gives a long line across the finger; east–west changes that impression. Your jeweller should confirm tip protection and clearance next to other rings.

Verify the selected stone’s report and confirm growth origin and any treatment disclosure. Reference images, grades and estimated dimensions on this page do not certify a specific diamond.

For a deeper explanation: The diamond bow-tie effect: how to assess an oval, pear or marquise..

Educational reference: GIA’s diamond-shape guide. Our notes are selection guidance, not a laboratory cut grade.

See the size.
Find your proportion.

Explore nine shapes, from 0.30 to 5.00 carats. Compare their face-up proportions on a reference hand.

Carat weight: 1.00 ct
Approx. length × width: 10.50 × 5.00 mm

Carat weight

Diamond shape

Skin tone

Illustrative proportions, not a true-to-life screen scale. Actual measurements and appearance vary; your final selection is assessed using its laboratory report and imagery. Fancy shapes scale from typical one-carat dimensions.

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