What Does a Marquise Diamond Mean?

The phrase Marquise originates from the French court. Louis XV commissioned the cut in the 1740s, requesting a stone in the likeness of his mistress, the Marquise de Pompadour's smile.

It's also known as a navette, meaning "little boat" in French, named after its shape having two curving sides that meet at a point on either end.

A marquise lab produced diamond retains that relationship. Regal, slightly dramatic, and chosen for just that.

Do Lab Grown Marquise Diamonds Look Bigger?

Yes, more than any other shape. It's the marquise's whole argument.

A brilliant-cut interior spread across a long, shallow outline means very little weight hides in depth. Almost all of it faces up.

As a result, a marquise seems significantly bigger than a round of identical weight, while also lengthening the fingers. If the greatest size per dollar is important, nothing tops it.

What Are the Things to Check in a Marquise Cut Lab Grown Diamond

Three things, none of which appear on the grading report:

• Point alignment: Both points must sit on the same axis. If one tips off-center, the whole stone looks crooked once set, the most common fault in a lab grown marquise diamond.
• Symmetry across the middle: Cover one half on the video, then the other. The curves should mirror.
• Bow-tie: Elongated brilliants can show a dark band across the center.

The best length-to-width ratio is between 1.85 to 2.10. Below that it looks squat; above it gets very narrow and the points grow more fragile.

How to Protect the Points

Two points, both thin, both exposed. Each needs a V-prong, shaped to wrap the tip rather than sit beside it.

Same requirement as a pear, doubled. Avoid any setting that grips the curved sides and leaves the tips bare.

For heavy daily wear, a bezel or halo covers both ends.

Marquise Lab Grown Diamond Prices

The price of most 1 carat marquises runs between $250 to $800, and it depends on color, clarity and cut.

Compared to a round cut lab grown diamond, a marquise cut lab grown diamond costs less per carat. Those two effects compound, which is why this shape stretches a budget further than any other here.

Well-cut natural marquises are scarce, cutters won't lose weight from expensive rough on such a demanding outline. Lab-grown removes that constraint.

Marquise Lab Grown Diamonds at Precious Carbon

The supply side of this trade was the business for two decades. Retail came later, and the prices carry that history.

Every marquise lab grown diamond is IGI or GIA certified against the 4Cs, we also ship free, and offer the best return policy within 30 days. Comparing cuts? See the diamond shape guide or browse natural marquises.