Lab Grown 1 Carat Diamond Engagement Rings

Let customers speak for us

from 91 reviews

Drew

100% Satisfied

I was nervous about buying a ring online but it seemed like it would be a wild goose chase trying to find an elongated hexagon moissanite engagement ring (which is what my now fiance wanted) so I took a chance with Brilliant Carats and I'm glad I did. The ring is high quality and the price can't be beat. I will be shopping with them again for a wedding band.

Ring Size- Avis

01/22/2026

Oval Lab-Grown Diamond Solitaire Engagement Ring

Mary

Classic ring

The design is classic, the quality is amazing… I’m obsessed!

Oval Lab-Grown Diamond Solitaire Engagement Ring

12/09/2025

Alden E.

My wife is very happy

I just got my custom ring — it’s gorgeous! My wife loves it so much. The customer service team kept me updated the whole time, sending photos of every stage. They were super patient.
Big thanks to Brilliant Carats!

Oval Lab-Grown Diamond Solitaire Engagement Ring

12/09/2025

Aegis | 1-3cts Hexagon Lab Diamond Ring with Iris Flora

Cassidy Blake

Maybe purchase again.

Unique shape and such clear sparkle. Everyone thought it was a custom piece. Maybe purchase again.

Aegis | 1-3cts Hexagon Lab Diamond Ring with Iris Flora

11/02/2025

Long Hexagonal Cut Twist Band Engagement Ring

Faith Harmon

Shining Shining Shining

I’ve worn it non-stop for months — durable and still shines like new.

Long Hexagonal Cut Twist Band Engagement Ring

10/30/2025

Emerald Cut Diamond with Baguette & Trapezoid Accents Set

Piper Lawrence

Stunning clarity for moissanite.

Stunning clarity for moissanite. Comfortable fit and the ring arrived in lovely packaging.

Emerald Cut Diamond with Baguette & Trapezoid Accents Set

10/29/2025

NEXUS Kite Cut Lab Diamond Regal Halo Bridal Set 2PCs

Jessica Wallace

I love this kite diamond ring

I love this kite diamond ring; the matched wedding band is perfect.

NEXUS Kite Cut Lab Diamond Regal Halo Bridal Set 2PCs

10/28/2025

Pear Cut Three-Stone Lab Diamond Engagement Ring

Vanessa Burke

my new go-to

Pear moissanite is my new go-to. Looks high-end, the halo setting makes it pop.

Pear Cut Three-Stone Lab Diamond Engagement Ring

10/16/2025

Hexagon Cut with Classic Matching Band Bridal Set

Autumn Reeves

Love this hexagon moissanite ring.

Love this hexagon moissanite ring. Sparkle rivals my friend’s natural diamond.

Hexagon Cut with Classic Matching Band Bridal Set

10/13/2025

NEXUS Kite Cut Lab Diamond Classic Grace Bridal Set 2PCs

Amber McKinney

My partner loved it.

Stunning kite moissanite, it's sharp, sparkly, and very unique. My partner loved it.

NEXUS Kite Cut Lab Diamond Classic Grace Bridal Set 2PCs

10/11/2025

Pear Bezel Lab Diamond Ring in Solid Gold 1-3ct

Shelby Quinn

Classy and timeless ring

Classy and timeless. Excellent cut, and the IGI certificate came with full details.

Pear Bezel Lab Diamond Ring in Solid Gold 1-3ct

10/04/2025

Jenna Whitfield

Amazing lab diamond ring.

Amazing lab diamond ring. The hexagon shape gives my ring a designer look.

Hexagon Cut with Classic Matching Band Bridal Set

10/02/2025

Naomi Barrett

This engagement ring is classic and elegant

This engagement ring is classic and elegant, with sharp, crisp facets, and the setting is beautifully finished. Would recommend it to my friends.

Emerald Cut Diamond with Baguette & Trapezoid Accents Set

10/01/2025

Nathan Fuller

Perfect proposal ring.

My fiancé cried! The stone looks incredibly natural. Perfect proposal ring.

Pear Cut Three-Stone Lab Diamond Engagement Ring

09/28/2025

Erin Caldwell

Comfortable for daily wear.

This hexagon diamond ring is exactly what I wanted — unique without being over the top. Comfortable for daily wear.

Hexagon Cut with Classic Matching Band Bridal Set

09/26/2025

Shop 1 Carat Diamond Engagement Rings

Timeless Beauty, Brilliant Value

Welcome to our curated collection of 1 carat diamond engagement rings — where elegance meets everyday wearability. Each ring is crafted to maximize brilliance, balance carat weight, and fit beautifully within your budget.

Whether you prefer princess cut diamonds, oval, round, or pear shapes, we offer a stunning array of timeless styles. From minimalist solitaire settings to vintage-inspired halo designs, you’ll find the ring that fits your love story — and your finger — perfectly.

Why a 1 Carat Diamond Ring?

A 1 carat diamond is the gold standard for modern engagement rings. It offers the perfect balance between noticeable presence and refined subtlety — making it the most popular choice for proposals in the U.S.

Looks substantial on any finger size
Offers incredible sparkle without being too flashy
Symbolizes love, balance, and long-term commitment
Works beautifully in any setting, from classic to bold

In short: it’s an excellent choice — combining style, value, and enduring beauty.

How to Choose the Right Ring

Understand the 4 Cs

Every center diamond in our collection is carefully selected based on the cut, clarity, color, and carat weight. These determine not just how your diamond looks — but how it performs in the light.

Cut: The biggest factor in sparkle and brilliance
Clarity: VS and SI offer amazing value without sacrificing beauty
Color: Ranges from icy white to warm tones that pop in yellow gold
Carat: A full 1 carat delivers standout presence without excess

You can also choose between natural and lab-created diamonds — both stunning, certified, and conflict-free.

Pick a Diamond Shape

Every love story is unique. So is every diamond shape.

Round: Timeless sparkle and the most brilliant cut
Princess: Modern, geometric, sharp lines
Oval: Elegant and elongating on the finger
Emerald: Sleek, vintage-inspired clarity
Pear: Romantic and unexpected

Choose Your Setting & Style

From understated solitaires to intricate halos, your engagement ring setting helps express your personality.

Prefer minimalist modern? Go with a single diamond on a slim band.
Love vintage drama? Try a halo with a bold center stone.
Want warmth? Yellow gold adds richness and contrast.

We offer dozens of configurations — or we can create your dream ring from scratch.

Why Shop with BrilliantCTS?

You’re not just buying a ring. You’re investing in a legacy.

GIA- or IGI-certified center stones
Ethically sourced natural and lab-grown options
Free shipping & 30-day returns
Complimentary resizing
Lifetime warranty & expert support

With the same quality you’d find at high-end retailers — at a fraction of the price — our rings are crafted for the moments that matter most.

Need help?

Frequently Asked Questions

1. How much does a 1 carat engagement ring cost?

Most of our 1 carat rings fall between $3,500 and $12,000, depending on the shape, setting, and whether you choose a lab or natural diamond.

2. Is 1 carat big enough?

Absolutely. It’s the most popular carat diamond size for a reason — large enough to stand out, timeless enough to wear forever.

3. Can I customize my ring?

Yes! Whether it’s switching the shape, upgrading the setting, or selecting your preferred metal, we offer full custom services.

4. What diamond shape sparkles the most?

Round diamonds offer the highest brilliance, but oval, princess, and emerald cuts each offer unique visual impact.

5. Do you offer payment plans?

Yes, we offer financing options so you can find your dream ring — no compromises on quality or style.

Any question?

You can contact us through our contact page! We will be happy to assist you.

Ready to Find “The One”?

Scroll down to explore our full collection of 1 carat diamond engagement rings, or speak with a diamond expert for personalized guidance. Let’s make your proposal unforgettable.