Marquise Cut Lab-Grown Diamonds

Browse more than 1,100 loose marquise cut lab-grown diamonds in colourless D to J grades, from under a carat to over 3 carats. Most come with an independent IGI grading report.

Why choose a marquise cut diamond?

The marquise cut's elongated, boat-like shape with two pointed ends is said to date back to 18th-century France. It has one of the largest surface areas of any diamond shape, so it looks bigger than its carat weight and makes the finger appear longer and slimmer.

How to choose a marquise lab-grown diamond

Symmetry. Both points should line up and both sides should curve evenly. Look for Excellent or Very Good symmetry.

Length-to-width ratio. Classic marquise cuts are around 1.85 to 2.10.

Colour and clarity. D to G gives a bright white look; VS1 and VS2 clarity are eye-clean.

Browse all loose lab-grown diamonds, or compare with pear and oval cut diamonds.