Lab Grown Marquise Cut Diamond Engagement Rings

What Makes Our Marquise Cut Diamond Engagement Rings Special

Marquise cut diamond engagement rings showcase one of the most distinctive shapes in fine jewelry: long, slim and pointed at both ends. Because its surface stretches along the finger, a marquise often appears larger than a round diamond of the same carat weight.

Each design is built to protect those delicate tips. V-shaped prongs cradle each point, and every setting is hand-finished so the stone sits secure, level and comfortable for everyday wear.

Why Choose a Lab-Grown Marquise Diamond

A lab-grown diamond is a real diamond, with the same chemical, physical and optical properties as a mined stone. The only difference is its origin: it is grown in a controlled environment rather than extracted from the earth.

That makes it a conflict-free, eco-conscious choice. It also often lets you choose a larger or higher-grade marquise within your budget, which is why lab-grown stones and marquise cut diamond engagement rings pair so naturally. Still comparing stones? You can also explore our moissanite engagement rings.

Shapes, Metals and Customization

Our marquise cut diamond engagement rings come in settings that let the stone's elegant outline take the lead:

• Halo: a frame of small diamonds that amplifies sparkle and presence.
• Hidden halo: a discreet row of diamonds beneath the center stone, revealed from the side.
• Split shank: a band that divides as it meets the setting, adding openness and drama.
• Pavé: tiny diamonds along the band for continuous shimmer.
• Celtic knot: woven details for a ring with heritage and meaning.

Every style is offered in 14K or 18K white, yellow or rose gold, or in platinum. Many of our marquise cut diamond engagement rings can be adjusted for carat weight, band width and ring size.

Pairing Metal With a Marquise

White gold and platinum heighten a bright, icy look, while yellow and rose gold add warmth and a vintage feel. Platinum is the densest option and a strong choice for an active lifestyle.

How to Choose Marquise Cut Diamond Engagement Rings

Start with proportions. A length-to-width ratio of roughly 1.75 to 2.25 is a popular range. A lower ratio looks fuller, while a higher one looks longer and slimmer.

Next, check symmetry. The two points should align evenly, and the stone should show minimal "bow-tie," a darker area that can appear across the center of elongated cuts.

Finally, consider orientation. Set north–south, a marquise lengthens the finger; set east–west, it feels modern and unexpected. Our lab-grown diamond buying guide explains grading in more detail.

Ethics, Certification and Value

The lab-grown center stones in our marquise cut diamond engagement rings are IGI certified, with an independent report grading cut, color, clarity and carat. You know exactly what you are buying.

Each stone is ethically sourced and grown above ground, so you can celebrate with a clear conscience. Most designs in this collection sit between $1,000 and $2,500, offering lasting value for a ring she will wear every day.

Marquise Cut Diamond Engagement Rings for Every Milestone

A marquise is made for moments that deserve a little drama. It is a memorable choice for a proposal, a meaningful upgrade for an anniversary, and a thoughtful gift for her, your bride or your wife.

Browse our full range of lab-grown diamond engagement rings or discover our Celtic engagement rings for more ways to tell your story. When you find the one, our team is here to help make it perfectly yours.