Lab Grown Diamond Engagement Rings

Explore Gema&Co lab grown diamond engagement rings in a wide range of diamond shapes, carat weights and settings. Lab grown diamonds have the same fundamental chemical composition, crystal structure and physical properties as mined diamonds, offering the brilliance and durability of diamond with a different origin.

Choose from classic solitaire, pavé, bezel, halo, hidden halo, three-stone and Toi Et Moi designs, then customize your preferred diamond shape, carat weight and precious metal.

Radiant-cut star halo diamond engagement ring

Customize Your Lab Grown Diamond Engagement Ring

Don’t see the style you’re looking for? Our lab diamond engagement rings are customizable — carat weight, setting, stone shape, and more. Our team works with you to bring your vision to life.

Customize Your Engagement Ring

Brilliant Forever. Ethically Made.

  • Built for Generations

    Each Gema&Co lab diamond ring is made to last, expertly crafted with attention to every detail. Our lab grown diamond engagement rings offer the same brilliance as natural diamonds, creating heirloom-quality pieces at accessible prices.

  • Transparent. Purposeful. Ethical.

    Every element of our lab grown diamond engagement rings is intentional, from ethically created stones to recycled metals. Your lifetime diamond represents a commitment and conscious decision to choose responsibility without compromise.

  • Backed by Commitment & Care

    We back every lab grown diamond ring with our two-year warranty and lifetime limited warranty. Whether you need sizing adjustments or professional cleaning, our team provides the care your ring deserves through every milestone.

Shop Lab Grown Diamond Engagement Rings by Shape

Diamond shape determines the outline of the center stone and has a major influence on brilliance, proportions and how large a diamond appears when viewed from above.

Round Lab Grown Diamond Engagement Rings feature the classic round brilliant cut, designed for strong light return and a symmetrical appearance.

Oval Lab Grown Diamond Engagement Rings combine brilliant-style faceting with an elongated silhouette that can provide greater visual coverage along the finger.

Pear Lab Grown Diamond Engagement Rings feature a distinctive teardrop outline combining a rounded end with a tapered point.

Emerald Cut Lab Grown Diamond Engagement Rings use long, linear step facets to create broad flashes of light and a clean, architectural appearance.

Radiant Cut Lab Grown Diamond Engagement Rings combine a rectangular or elongated outline with brilliant-style faceting and cropped corners.

Cushion Lab Grown Diamond Engagement Rings include traditional and elongated cushion shapes, characterized by softened corners and brilliant-style faceting.

Princess Cut Lab Grown Diamond Engagement Rings offer a geometric square silhouette with brilliant faceting and a modern appearance.

Marquise Lab Grown Diamond Engagement Rings feature an elongated silhouette with pointed ends, creating substantial face-up coverage relative to many diamond shapes.

Shop Lab Grown Diamond Engagement Rings by Carat Weight

Carat measures a diamond's weight, not its physical dimensions. Two diamonds of the same carat weight can therefore appear different in size depending on their shape, depth and proportions.

Shop 1 Carat Lab Grown Diamond Engagement Rings for diamonds from 1.00–1.99 carats.

Explore 2 Carat Lab Grown Diamond Engagement Rings for diamonds from 2.00–2.99 carats.

Browse 3 Carat Lab Grown Diamond Engagement Rings for diamonds from 3.00–3.99 carats.

Shop 4 Carat Lab Grown Diamond Engagement Rings for diamonds from 4.00–4.99 carats.

For larger center stones, explore 5 Carat and Larger Lab Grown Diamond Engagement Rings.

When comparing diamonds, consider the stone's millimeter dimensions and proportions alongside carat weight to better understand its actual face-up size.

Choose a Lab Grown Diamond Engagement Ring Setting

The setting determines how the center diamond is secured and plays a major role in the ring's overall appearance.

Solitaire Lab Grown Diamond Engagement Rings emphasize a single center diamond with a clean, timeless design.

Pavé Lab Grown Diamond Engagement Rings add smaller diamonds along the band for additional brilliance.

Bezel Lab Grown Diamond Engagement Rings surround the center diamond with a defined rim of precious metal, creating a smooth contemporary profile with additional coverage around the stone's perimeter.

Halo Lab Grown Diamond Engagement Rings surround the center diamond with smaller accent diamonds for additional brilliance and visual presence.

Hidden Halo Lab Grown Diamond Engagement Rings position accent diamonds beneath the center stone, adding detail that is most visible from the side.

Three Stone Lab Grown Diamond Engagement Rings pair a primary center diamond with two side stones for a balanced three-stone design.

Toi Et Moi, or two-stone engagement rings, pair two center diamonds—often in contrasting shapes—to create a distinctive asymmetrical design.

What Is a Lab Grown Diamond?

A lab grown diamond is a diamond created in a controlled laboratory environment rather than formed naturally underground. Lab grown and mined diamonds are both crystallized carbon and share the same fundamental chemical composition, crystal structure and physical properties.

Lab grown diamonds should not be confused with diamond simulants such as cubic zirconia or with alternative gemstones such as moissanite. A lab grown diamond is diamond; the primary distinction from a mined diamond is its origin.

Like mined diamonds, lab grown diamonds can vary in cut, color, clarity, carat weight and overall quality.

Gema&Co Lab Grown Diamond Quality and IGI Grading

Gema&Co lab grown center diamonds are selected for quality, appearance and proportions.

Lab grown center diamonds 1.00 carat and larger are IGI graded. Diamonds 0.99 carat and below are not individually graded.

An IGI grading report provides an independent assessment of characteristics such as carat weight, color, clarity, measurements and other identifying information for the individual diamond.

When choosing a center diamond, carat weight is only one consideration. Cut quality, proportions, dimensions, color and clarity all contribute to the finished appearance of an engagement ring.

Lab Grown Diamond vs. Moissanite Engagement Rings

Lab grown diamonds and moissanite are both popular center-stone choices, but they are different gemstones.

Lab grown diamonds are crystallized carbon and have the same fundamental material properties as mined diamonds. Moissanite is silicon carbide and has different optical properties, including greater dispersion that can produce more noticeable flashes of spectral color.

Moissanite generally offers a larger visual size at a lower price, while a lab grown diamond provides the material and optical characteristics of diamond.

Compare our Moissanite Engagement Rings to explore similar shapes, sizes and setting styles with moissanite center stones.

Let customers speak for us

from 419 reviews
I was skeptical at first

I was skeptical at first, especially because the amount of money I was paying. I could not be happier. My wife loved it.

Jewell
The Oval Moissanite Hidden Halo Pavé Engagement Ring
The ring was everything I hoped it would be and more

The ring was everything I hoped it would be and more.

Matthew Quealy
The Marquise Moissanite Pavé Engagement Ring
The product came fast and is freaking beautiful!

The product came fast and is freaking beautiful! Would recommend anyone that is considering getting nice and affordable jewelry for yourself or perhaps an engagement!

Monica S.
The Oval Moissanite
Absolutely perfect!! The ring is more stunning in person

Absolutely perfect!! The ring is more stunning in person, and left my fiancé in shock. 10/10

Anonymous
The Marquise Moissanite Trio Engagement Ring
10/10

The ring is absolutely STUNNING! I really wanted something that wasn’t going to cost me and arm and a leg that was still dainty and beautiful. 10/10 experience and quality.

Jenah Mitchell
The Marquise Shared Prong Wedding Band
Stunning Ring!

Customer service is top notch. I messaged in the middle of the night and got a response! Josh walked me through everything and the ring came in flawless and beautiful.

Quentin
The Pear Moissanite Bezel Pavé Engagement Ring
Such a great company and ring

Such a great company, amazing customer service, quick turnaround and my fiancé LOVES it. Insane clarity and sparkles so much, she’s gotten so many compliments! Thank you for making our special day and moment so great.

Anonymous
The Radiant Moissanite Solitaire Engagement Ring
Great support and beautiful ring!

I emailed the customer service team to help pick the right gap size, and they answered within a few hours. Their guidance made me much more confident ordering a band without trying it on. This band arrived quickly and fits perfectly with my engagement ring!

Katherine Loayza
Open Gap Wedding Band Ring Wedding Band
It’s beautiful

It’s beautiful, and she loved it

Carlos Jimenez Aguilar
The Oval Moissanite Solitaire Engagement Ring
Best Customer Service

I ordered a 3.5 karat bezel cut ring for my now fiancee on short notice and Gem & Co made it happen on time for my special moment.

Unfortunately, the ring that was made and shipped was incorrect. It had a different setting than what I had ordered. I quickly emailed customer service and Liz Weaver handled my situation terrificly. Gem & Co immediately began production on the correct ring on a holiday week and almost had it to me in one week! The correct ring arrived and my fiancee absolutely adores it.

I understand mistakes happen and its what you do to fix the mistake that truly counts. Thank you Liz and the team and Gem & Co.

Kyle Smith
The Emerald Moissanite Bezel Engagement Ring
My Dream Ring

I love absolutely everything about this ring. It is very high quality and durable, and the customer service from Gema & Co is truly top notch. I will be coming back for my wedding band!

Madison K.
The Radiant Moissanite Bezel Engagement Ring
Gorgeous Ring!

My fiance got me this gorgeous ring! We got the Gema&Co 4.2ct stone with the rose gold band.

Emily Johnson
The Oval Moissanite Hidden Halo Pavé Engagement Ring
Great customer service

I purchased both an engagement ring and wedding band from this website. Both experiences were great with plenty of communication from the customer service department. They even made customizing a ring quick and painless! I can't recommend them enough!

Adam
Amazing service on custom wedding band

I ordered the engagement ring for my now fiance from Gema&Co and she loved it! We looked at wedding bands in person and she really enjoyed thicker band designs. I wanted to try and order the wedding band from Gema&Co as well so I reached out and they worked with us on customizing the small curve to be substantially wider! They even provided a 3D rendering showing the wedding band paired with the engagement ring. We ordered it with custom engraving and everything about it turned out perfect! Plus the very fair price meant there was more money to put towards the wedding which is a great bonus!

Adam
The Small Curve Wedding Band
Definitely what I purchased! And this thing dances in the light for sure

Definitely what I purchased! And this thing dances in the light for sure.

Jaisun Lundy
The Radiant Moissanite Pavé Engagement Ring

Frequently Asked Questions About Lab Grown Diamond Engagement Rings

Are lab grown diamonds real diamonds?

Yes. Lab grown diamonds are diamonds. They have the same fundamental chemical composition and crystal structure as mined diamonds. The primary difference is how and where they form.

What is the difference between a lab grown and natural diamond?

Both are diamonds. Natural diamonds form within the Earth over geological timescales, while lab grown diamonds are produced in controlled laboratory environments. Their origin differs, while their fundamental material composition and crystal structure are the same.

Are lab grown diamonds durable enough for engagement rings?

Yes. Lab grown diamonds have the same hardness and fundamental physical properties as mined diamonds, making them well suited to engagement rings intended for everyday wear.

Are Gema&Co lab grown diamonds IGI graded?

Gema&Co lab grown center diamonds 1.00 carat and larger are IGI graded. Diamonds 0.99 carat and below are not individually graded.

What carat weight should I choose for a lab grown diamond engagement ring?

There is no single ideal carat weight. Consider your preferred visual size, diamond shape, proportions, setting and budget. Because carat measures weight rather than dimensions, comparing the diamond's millimeter measurements can also help determine how large it will appear on the hand.

Which lab grown diamond shape looks largest?

Elongated shapes such as oval, pear and marquise can provide greater face-up coverage than some other shapes at similar carat weights. However, actual appearance depends on the individual diamond's dimensions, depth and proportions.

Do lab grown diamonds get cloudy over time?

A lab grown diamond does not inherently become cloudy simply because it was grown in a laboratory. Like any diamond, oils, lotions and everyday residue can accumulate on its surface and reduce visible brilliance until the stone is cleaned.

Is moissanite the same as a lab grown diamond?

No. Moissanite is silicon carbide, while diamond is crystallized carbon. Moissanite and lab grown diamonds differ in composition and optical properties even though both are commonly used as center stones in engagement rings.

Can I customize a Gema&Co lab grown diamond engagement ring?

Yes. Gema&Co engagement rings can be customized by diamond shape, carat weight, precious metal and setting details. More extensive modifications and custom designs can also be requested through our bespoke process.

Explore More from Gema&Co

Besides lab grown diamond engagement rings, we offer a complete collection of wedding bands, earrings, and more to build your style and complete your story.

Shop By Diamond Carat Weight