Marquise Cut Lab Diamond Engagement Rings

The iconic marquise cut makes our lab diamond rings pop. Its elongated, boat-like shape catches the light beautifully. Set in vintage-inspired halos, sleek solitaires or modern bands, these rings are elegant, timeless and completely ethical. Explore our collection to find the one that shines for you.
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Yellow gold round cut solitaire engagement ringSolitaire Yellow gold engagement ring with sidestonesSidestones Yellow gold three stones engagement ringThree Stone Yellow gold round cut solitaire ring with sidestonesVintage Yellow Gold crown ring with round cut diamondBridal Sets Yellow gold halo engagement ringHalo
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Round cut diamondRound Oval cut diamondOval Princess cut diamondPrincess Emerald cut diamondEmerald Cushion cut diamondCushion Heart cut diamondHeart Radiant cut diamondRadiant Asscher cut diamondAsscher Pear cut diamondPear Marquise cut diamondMarquise
Vintage Cluster Marquise Cut Lab Diamond Engagement Ring (1.50 CT) Vintage Cluster Marquise Cut Lab Diamond Engagement Ring (1.50 CT)

Vintage Cluster Marquise Cut Lab Diamond Engagement Ring (1.50 CT)

$2,790.00
Yellow Gold
Marquise Cut Solitaire Lab Grown Diamond Engagement Ring (1.00 CT) Marquise Cut Solitaire Lab Grown Diamond Engagement Ring (1.00 CT)

Marquise Cut Solitaire Lab Grown Diamond Engagement Ring (1.00 CT)

$1,690.00
Yellow Gold
Marquise Twisted Lab Grown Diamond Engagement Ring with Pave Set Side Stones (1.00 CT) Marquise Twisted Lab Grown Diamond Engagement Ring with Pave Set Side Stones (1.00 CT)

Marquise Twisted Lab Grown Diamond Engagement Ring with Pave Set Side Stones (1.00 CT)

$1,830.00
Yellow Gold
Marquise Cut Solitaire Lab Grown Diamond Engagement Ring (2.00 CT) Marquise Cut Solitaire Lab Grown Diamond Engagement Ring (2.00 CT)

Marquise Cut Solitaire Lab Grown Diamond Engagement Ring (2.00 CT)

$2,870.00
Yellow Gold
Bezel Marquise Lab Grown Diamond Engagement Ring (1.00 CT) Bezel Marquise Lab Grown Diamond Engagement Ring (1.00 CT)

Bezel Marquise Lab Grown Diamond Engagement Ring (1.00 CT)

$1,670.00
Yellow Gold
Marquise Halo Lab Grown Diamond Engagement Ring with Pave Set Side Stones (2.00 CT) Marquise Halo Lab Grown Diamond Engagement Ring with Pave Set Side Stones (2.00 CT)

Marquise Halo Lab Grown Diamond Engagement Ring with Pave Set Side Stones (2.00 CT)

$3,190.00
Yellow Gold
Marquise Cut Solitaire Lab Grown Diamond Engagement Ring (1.50 CT) Marquise Cut Solitaire Lab Grown Diamond Engagement Ring (1.50 CT)

Marquise Cut Solitaire Lab Grown Diamond Engagement Ring (1.50 CT)

$2,350.00
Yellow Gold
Bezel Marquise Lab Grown Diamond Engagement Ring (2.00 CT) Bezel Marquise Lab Grown Diamond Engagement Ring (2.00 CT)

Bezel Marquise Lab Grown Diamond Engagement Ring (2.00 CT)

$2,710.00
Yellow Gold
Bezel Marquise Lab Grown Diamond Engagement Ring (1.50 CT) Bezel Marquise Lab Grown Diamond Engagement Ring (1.50 CT)

Bezel Marquise Lab Grown Diamond Engagement Ring (1.50 CT)

$2,190.00
Yellow Gold
Knife Edge Marquise Lab Grown Diamond Engagement Ring (2.00 CT) Knife Edge Marquise Lab Grown Diamond Engagement Ring (2.00 CT)

Knife Edge Marquise Lab Grown Diamond Engagement Ring (2.00 CT)

$2,750.00
Yellow Gold
Knife Edge Marquise Lab Grown Diamond Engagement Ring (1.50 CT) Knife Edge Marquise Lab Grown Diamond Engagement Ring (1.50 CT)

Knife Edge Marquise Lab Grown Diamond Engagement Ring (1.50 CT)

$2,190.00
Yellow Gold
Knife Edge Marquise Lab Grown Diamond Engagement Ring (1.00 CT) Knife Edge Marquise Lab Grown Diamond Engagement Ring (1.00 CT)

Knife Edge Marquise Lab Grown Diamond Engagement Ring (1.00 CT)

$1,610.00
Yellow Gold
Marquise Halo Lab Grown Diamond Engagement Ring (2.00 CT) Marquise Halo Lab Grown Diamond Engagement Ring (2.00 CT)

Marquise Halo Lab Grown Diamond Engagement Ring (2.00 CT)

$3,130.00
Yellow Gold
Marquise Halo Lab Grown Diamond Engagement Ring (1.50 CT) Marquise Halo Lab Grown Diamond Engagement Ring (1.50 CT)

Marquise Halo Lab Grown Diamond Engagement Ring (1.50 CT)

$2,570.00
Yellow Gold
Marquise Halo Lab Grown Diamond Engagement Ring (1.00 CT) Marquise Halo Lab Grown Diamond Engagement Ring (1.00 CT)

Marquise Halo Lab Grown Diamond Engagement Ring (1.00 CT)

$1,990.00
Yellow Gold
Marquise Twisted Lab Grown Diamond Engagement Ring with Pave Set Side Stones (2.00 CT) Marquise Twisted Lab Grown Diamond Engagement Ring with Pave Set Side Stones (2.00 CT)

Marquise Twisted Lab Grown Diamond Engagement Ring with Pave Set Side Stones (2.00 CT)

$2,970.00
Yellow Gold
Marquise Twisted Lab Grown Diamond Engagement Ring with Pave Set Side Stones (1.50 CT) Marquise Twisted Lab Grown Diamond Engagement Ring with Pave Set Side Stones (1.50 CT)

Marquise Twisted Lab Grown Diamond Engagement Ring with Pave Set Side Stones (1.50 CT)

$2,410.00
Yellow Gold
Marquise Halo Lab Grown Diamond Engagement Ring with Pave Set Side Stones (1.50 CT) Marquise Halo Lab Grown Diamond Engagement Ring with Pave Set Side Stones (1.50 CT)

Marquise Halo Lab Grown Diamond Engagement Ring with Pave Set Side Stones (1.50 CT)

$2,630.00
Yellow Gold
Marquise Halo Lab Grown Diamond Engagement Ring with Pave Set Side Stones (1.00 CT) Marquise Halo Lab Grown Diamond Engagement Ring with Pave Set Side Stones (1.00 CT)

Marquise Halo Lab Grown Diamond Engagement Ring with Pave Set Side Stones (1.00 CT)

$2,070.00
Yellow Gold
Marquise Cut Lab Grown Diamond Engagement Ring with Pave Set Side Stones (2.00 CT) Marquise Cut Lab Grown Diamond Engagement Ring with Pave Set Side Stones (2.00 CT)

Marquise Cut Lab Grown Diamond Engagement Ring with Pave Set Side Stones (2.00 CT)

$2,910.00
Yellow Gold
Marquise Cut Lab Grown Diamond Engagement Ring with Pave Set Side Stones (1.50 CT) Marquise Cut Lab Grown Diamond Engagement Ring with Pave Set Side Stones (1.50 CT)

Marquise Cut Lab Grown Diamond Engagement Ring with Pave Set Side Stones (1.50 CT)

$2,350.00
Yellow Gold
Marquise Cut Lab Grown Diamond Engagement Ring with Pave Set Side Stones (1.00 CT) Marquise Cut Lab Grown Diamond Engagement Ring with Pave Set Side Stones (1.00 CT)

Marquise Cut Lab Grown Diamond Engagement Ring with Pave Set Side Stones (1.00 CT)

$1,770.00
Yellow Gold
Vintage Cluster Marquise Cut Lab Diamond Engagement Ring (1.00 CT) Vintage Cluster Marquise Cut Lab Diamond Engagement Ring (1.00 CT)

Vintage Cluster Marquise Cut Lab Diamond Engagement Ring (1.00 CT)

$2,250.00
Yellow Gold

Lab-Grown Marquise Diamond Rings

Our lab-grown marquise engagement rings are designed to make your love story shine, literally. With their elegant, elongated shape and pointed ends, lab-grown marquise diamond rings flatter your finger while making your diamond the star of the show.

From minimalist halos to vintage-inspired details, our designs highlight the beauty of this timeless, iconic cut. Because we believe your love deserves something just as meaningful, we use only sustainable, conflict-free lab-grown diamonds. Ethically made with zero compromises, they shine just as bright as mined diamonds. That means with marquise lab diamond engagement rings you get all the brilliance without the environmental impact.

Marquise Cut Lab Diamond Engagement Rings FAQs

What is the best size for a marquise ring?

There's no single 'best' size for a marquise ring, as it depends entirely on your personal style and preferences. A common range for marquise diamond sizes is between 0.5 carats to 2.0 carats. You can go for larger sizes for a more dramatic and eye-catching look or opt for smaller sizes for a more delicate and subtle vibe. If you have further questions about stone sizes, cuts and carats, visit our Engagement Ring Guide or contact us at service@eternate.com.

What is so special about the marquise cut?

The marquise cut’s unique boat-like shape with pointed ends offers a different aesthetic than round or oval cut diamonds do. Marquise diamonds also have a larger surface area compared to their carat weight, which makes our lab-grown marquise diamond rings sparkle a lot and appear bigger than their carat size. As a result, this cut turns heads in the best way possible.

Where did the marquise-cut get its name?

There is an intriguing story behind the name 'marquise'. Back in the 18th century, King Louis XV of France was in love with a woman named the Marquise de Pompadour. He admired her beauty, especially her lips, so much that he commissioned a jeweler to create a diamond that mirrored their perfect shape. Eventually the 'marquise cut' was born!

How do you protect a marquise engagement ring?

The pointed ends of the marquise cut might be a bit more vulnerable than other shapes. But there are ways to keep your lab-grown marquise diamond engagement ring safe and sound for years to come! First, you should be mindful of your daily activities and take it off before rough activities to protect it from any damage. You can also provide basic cleaning at home with warm water, mild dish soap and a soft toothbrush. For more details, feel free to consult our Jewelry Care Guide.

Lab-Grown Marquise Diamond Rings and More

Love the bold, elongated look of the marquise cut? You might also fall for pear-cut engagement rings. The pear shape has the same dramatic look with a softer, teardrop silhouette. If you’re torn between the two (or still exploring your options), our Diamond Shape Guide breaks down everything you need to know to help you find the perfect shape.

Already set on a shape? Now it’s time to pick your gemstone! We offer the same stunning designs and more in lab-grown diamonds, moissanite and natural diamonds, so you can choose the perfect balance of brilliance and budget.

Finding your dream engagement ring has never been easier. Start exploring Eternate today!