LUMEO Jewelry Diamond ring on a soft surface with a blurred background

Certified Lab Diamond Engagement Rings

MADE TO CATCH THE LIGHT.

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"We believe a $3,000 ring should feel like a $20,000 heirloom. That is why we refuse to compromise. No hollow settings. No shortcuts. Just solid 18k gold and certified lab-grown diamonds, handcrafted to last a lifetime. We design fine jewelry to be worn every day, forever—not just for the photo."

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Editors' Picks

Engagement Rings

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Earrings

Certified Eco-Lab Diamonds

Craft Locally in U.S

Spend $4,000 and get FREE Diamond Studs

Free Shipping Any Order

Certified Eco-Lab Diamonds

Craft Locally in U.S

Spend $4,000 and get FREE Diamond Studs

Free Shipping Any Order

Certified Eco-Lab Diamonds

Craft Locally in U.S

Spend $4,000 and get FREE Diamond Studs

Free Shipping Any Order

Certified Eco-Lab Diamonds

Craft Locally in U.S

Spend $4,000 and get FREE Diamond Studs

Free Shipping Any Order

Certified Eco-Lab Diamonds

Craft Locally in U.S

Spend $4,000 and get FREE Diamond Studs

Free Shipping Any Order

Certified Eco-Lab Diamonds

Craft Locally in U.S

Spend $4,000 and get FREE Diamond Studs

Free Shipping Any Order

LUMEO Marquise East to West Diamond Ring in 18k Solid Yellow Gold

Becca - East to West Marquise

A modern twist on a timeless silhouette. The marquise diamond is set horizontally for a bold yet elegant look, accentuating the finger with clean lines and contemporary style.

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CURATED FOR EVERY MOMENT

Everyday Diamond Essentials

Effortless, modern designs for daily wear.

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LUMEO Marquise Double Band Diamond Ring in 18k Solid Yellow Gold on model

Crafted for Your Forever

Engagement rings designed in solid 18k gold.

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Modern Diamond Bands

Elegant bands for stacking or wearing solo.

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LUMEO Emerald Double Halo Diamond Engagement Ring with hand

Bespoke Design Service

Create a piece made just for you.

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Yes — Both Are Real Diamonds

See how lab-grown and mined diamonds stack up on purity, ethics, and price

Our Lab
Mined
Is It a Real Diamond?
100 % real—identical in chemistry, sparkle, and durability.
Yes – formed naturally in the earth.
Chemical Makeup
Pure carbon (C)
Pure carbon (C)
Hardness
10 on the Mohs scale
10 on the Mohs scale
Origin
Grown in a clean, modern lab — no mining, no conflict
Extracted through mining — disruptive to land and ecosystems
Cost
Typically 30–70% less for the same quality
Higher due to mining, labor, and supply limits
Environmental Impact
Minimal land use, low water, smaller carbon footprint
Land disturbance, high water use, and CO₂ emissions
Certification
GIA/AGS/IGI
GIA/AGS/IGI

SOLID, SUBSTANTIAL GOLD

We reject the disposable culture of vermeil and plating. We craft exclusively in solid 18k gold and platinum—materials designed to be worn daily, refinished endlessly, and passed down for generations.

100% CONFLICT-FREE

Beauty without the baggage. Our lab-grown diamonds are physically identical to mined stones but free from the human and environmental toll of traditional mining. A cleaner origin for a brighter future.

MADE TO ORDER

Most jewelers resize mass-produced stock. We cast and hand-finished specifically for you. This ensures superior structural integrity, a perfect fit without resizing lines, and a piece of jewelry that has never been worn by anyone else.