Buy Lab-Grown Diamond Engagement Ring
Ready to pop the question? Find the perfect symbol of your love with our collection of lab-grown diamond engagement rings, crafted in 100% solid 14K & 18K gold and set with ethically sourced, IGI-certified lab-grown diamonds. These rings are just as brilliant, durable, and timeless as mined diamond rings—but with a modern, meaningful twist.
Every engagement ring is handcrafted, hypoallergenic, and shipped free across the UK, complete with certification and secure packaging. At The Karat Store, you’ll discover designs made to tell your love story—with clarity, conscience, and sparkle.
Princess Cut Halo Solitaire Ring 2 ct Lab Grown Diamond Engagement Ring
£1,056.00
Rated 4.47 out of 5
(15)
Princess Cut Halo Solitaire Ring 2 ct Lab Grown Diamond Engagement Ring
£1,241.00
Princess Cut Halo Solitaire Ring 3 ct Lab Grown Diamond Engagement Ring
£1,442.00
Rated 4.86 out of 5
(7)
The Princess Cut Halo Solitaire Ring 3 ct Lab Grown Diamond Engagement Ring by The Karat Store offers timeless elegance and sustainability. Available in 14K gold with options for rose, yellow, or white gold, and featuring VVS-VS clarity and E-F colour diamonds, this ring is perfect for the eco-conscious couple.
Princess Cut Halo Solitaire Ring 3 ct Lab Grown Diamond Engagement Ring
£1,627.00
The Princess Cut Halo Solitaire Ring 3 ct Lab Grown Diamond Engagement Ring by The Karat Store offers timeless elegance and sustainability. Available in 18k gold with options for rose, yellow, or white gold, and featuring VVS-VS clarity and E-F colour diamonds, this ring is perfect for the eco-conscious couple.
Princess Cut Lab Grown Diamond 1ct Engagement Ring
£643.00
Rated 4.00 out of 5
(3)
Princess Cut Lab Grown Diamond 1ct Engagement Ring
£828.00
Round Cut 1 ct Lab Grown Diamond Engagement Ring
£711.00
Round Cut 1 ct Lab Grown Diamond Engagement Ring
£767.00
Rated 4.75 out of 5
(4)
Round Cut 1 ct Lab Grown Diamond Engagement Ring
£739.00
Rated 4.45 out of 5
(38)
Round Cut 1 ct Lab Grown Diamond Engagement Ring
£776.00
Round Cut 1 ct Lab Grown Diamond Engagement Ring
£724.00
Rated 4.26 out of 5
(34)
Round Cut 1 ct Lab Grown Diamond Engagement Ring
£896.00
Round Cut 1 ct Lab Grown Diamond Engagement Ring
£952.00
Round Cut 1 ct Lab Grown Diamond Engagement Ring
£924.00
Round Cut 1 ct Lab Grown Diamond Engagement Ring
£961.00
Round Cut 1 ct Lab Grown Diamond Engagement Ring
£909.00
Round Cut 1 ct Lab Grown Diamond Pave Setting Engagement Ring
£695.00
Rated 4.33 out of 5
(30)
Round Cut 1 ct Lab Grown Diamond Pave Setting Engagement Ring
£702.00
Rated 3.75 out of 5
(4)
The Round Cut 1 ct Lab Grown Diamond Pave Setting Engagement Ring by The Karat Store combines timeless elegance and sustainability. Available in 14K gold with options for rose, yellow, or white gold, featuring a 1.00 ct lab-grown diamond with VVS-VS clarity and E-F colour. Perfect for the eco-conscious couple.
Round Cut 1 ct Lab Grown Diamond Pave Setting Engagement Ring
£880.00
Round Cut 1 ct Lab Grown Diamond Pave Setting Engagement Ring
£887.00
The Round Cut 1 ct Lab Grown Diamond Pave Setting Engagement Ring by The Karat Store combines timeless elegance and sustainability. Available in 18k gold with options for rose, yellow, or white gold, featuring a 1.00 ct lab-grown diamond with VVS-VS clarity and E-F colour. Perfect for the eco-conscious couple.
Round Cut 1 ct Lab Grown Diamond Prong Setting Engagement Ring
£717.00
Rated 4.10 out of 5
(10)
The Round Cut 1 ct Lab Grown Diamond Prong Setting Engagement Ring by The Karat Store offers timeless elegance and sustainability. Available in 14K gold with options for rose, yellow, or white gold, featuring a 1.00 ct lab-grown diamond with VVS-VS clarity and E-F colour. Perfect for the eco-conscious couple.
Round Cut 1 ct Lab Grown Diamond Prong Setting Engagement Ring
£902.00
The Round Cut 1 ct Lab Grown Diamond Prong Setting Engagement Ring by The Karat Store offers timeless elegance and sustainability. Available in 18k gold with options for rose, yellow, or white gold, featuring a 1.00 ct lab-grown diamond with VVS-VS clarity and E-F colour. Perfect for the eco-conscious couple.
Round Cut 2 ct Lab Grown Diamond Engagement Ring
£1,063.00
Rated 4.50 out of 5
(14)
Round Cut 2 ct Lab Grown Diamond Engagement Ring
£1,248.00
Round Cut 3 ct Lab Grown Diamond Engagement Ring
£849.00
Rated 4.41 out of 5
(17)
Round Cut 3 ct Lab Grown Diamond Engagement Ring
£1,034.00
Round Cut 3 ct Lab Grown Diamond Prong Setting Engagement Ring
£1,442.00
Rated 4.20 out of 5
(5)
The Round Cut 3 ct Lab Grown Diamond Prong Setting Engagement Ring by The Karat Store offers classic elegance and sustainability. Available in 14K gold with options for rose, yellow, or white gold, and featuring VVS-VS clarity and E-F colour diamonds, this ring is perfect for the eco-conscious couple.
Round Cut 3 ct Lab Grown Diamond Prong Setting Engagement Ring
£1,627.00
The Round Cut 3 ct Lab Grown Diamond Prong Setting Engagement Ring by The Karat Store offers classic elegance and sustainability. Available in 18k gold with options for rose, yellow, or white gold, and featuring VVS-VS clarity and E-F colour diamonds, this ring is perfect for the eco-conscious couple.
Round Cut Halo Solitaire Ring 2 ct Lab Grown Diamond Engagement Ring
£1,039.00
Round Cut Halo Solitaire Ring 2 ct Lab Grown Diamond Engagement Ring
£1,027.00
Rated 4.40 out of 5
(25)
Round Cut Halo Solitaire Ring 2 ct Lab Grown Diamond Engagement Ring
£1,224.00
Round Cut Halo Solitaire Ring 2 ct Lab Grown Diamond Engagement Ring
£1,212.00
Round Cut Lab Grown Diamond 1ct. Engagement Ring in 14K Solid Gold
£727.00
Rated 3.77 out of 5
(35)
Round Cut Lab Grown Diamond 1ct. Engagement Ring in 18K Solid Gold
£912.00
Snowdrift Ring, 14k Gold Closed Basket Ring
£1,019.00
Snowdrift Ring, 18k Gold Closed Basket Ring
£1,204.00
Threaded Ring with Halo, 0.5ct. Oval Cut Lab-Grown Diamond
£707.00
Threaded Ring with Halo, 0.5ct. Oval Cut Lab-Grown Diamond
£892.00
Three Stone Anniversary Solitaire Ring 3 ct. Lab Grown Diamond
£1,516.00
Three Stone Anniversary Solitaire Ring 3 ct. Lab Grown Diamond
£1,420.00
Rated 4.20 out of 5
(5)
The Three Stone Anniversary Solitaire Ring 3 ct. Lab Grown Diamond by The Karat Store combines timeless elegance and sustainability. Available in 14K gold with options for rose, yellow, or white gold, featuring a 3.00 ct lab-grown diamond with VVS-VS clarity and E-F colour. Perfect for celebrating your enduring love.
Three Stone Anniversary Solitaire Ring 3 ct. Lab Grown Diamond
£1,701.00
Three Stone Anniversary Solitaire Ring 3 ct. Lab Grown Diamond
£1,605.00
The Three Stone Anniversary Solitaire Ring 3 ct. Lab Grown Diamond by The Karat Store combines timeless elegance and sustainability. Available in 18k gold with options for rose, yellow, or white gold, featuring a 3.00 ct lab-grown diamond with VVS-VS clarity and E-F colour. Perfect for celebrating your enduring love.
Tri Stone Anniversary Solitaire Ring 3 ct. Lab Grown Diamond
£1,405.00
Rated 4.00 out of 5
(3)
Tri Stone Anniversary Solitaire Ring 3 ct. Lab Grown Diamond
£1,590.00
Twisted Band 2ct Lab Grown Diamond Engagement Halo Ring
£1,047.00
Rated 4.00 out of 5
(2)
The Twisted Band 2ct Lab Grown Diamond Engagement Halo Ring by The Karat Store features a captivating 2.00 ct lab-grown diamond surrounded by smaller diamonds in a halo setting. Crafted in 14K gold with options in rose, yellow, or white gold. Perfect for those seeking sophistication and sustainability.
Twisted Band 2ct Lab Grown Diamond Engagement Halo Ring
£1,232.00
The Twisted Band 2ct Lab Grown Diamond Engagement Halo Ring by The Karat Store features a captivating 2.00 ct lab-grown diamond surrounded by smaller diamonds in a halo setting. Crafted in 18k gold with options in rose, yellow, or white gold. Perfect for those seeking sophistication and sustainability.
Twisted Band 3ct Lab Grown Round Brilliant Diamond Engagement Halo Ring
£1,412.00
Rated 4.50 out of 5
(2)
Twisted Band 3ct Lab Grown Round Brilliant Diamond Engagement Halo Ring
£1,597.00
History, Types, Cultural Significance Of Lab-Grown Diamond Engagement Ring
Your engagement ring should reflect more than just beauty—it should reflect your values. That’s why our rings feature lab-grown diamonds that are optically, physically, and chemically identical to mined diamonds, but grown using sustainable practices that minimise environmental impact.
Choose from timeless and trending styles, including:
Classic solitaires with round, oval, cushion, or princess cuts
Halo rings for added sparkle
Three-stone designs symbolising your past, present, and future
Hidden halos, vintage-inspired, and twisted bands
Minimalist to bold settings for every style
Why do so many UK couples choose lab-grown diamonds? Because they offer exceptional brilliance and ethical value at a better price. With more carats for your budget and zero compromise on quality, these rings make a smart, beautiful start to forever.
Quality of Material Used
Every ring is made from 100% solid 14K & 18K gold—available in yellow, white, or rose gold. We never use plated or filled metals, so your ring maintains its beauty for a lifetime.
Each diamond is lab-grown, hand-selected for clarity and brilliance, and expertly set to highlight its natural sparkle. Our rings are also hypoallergenic and safe for everyday wear.
Certifications Provided
We believe in full transparency. Every lab-grown diamond engagement ring includes:
An IGI certificate confirming cut, clarity, carat, and ethical origin
A 14K & 18KÂ gold purity stamp
A detailed invoice and supporting documentation
When you choose a certified lab-grown diamond ring, you’re making a decision backed by quality and integrity.
Craftsmanship
Each engagement ring is brought to life by skilled artisans using expert techniques and modern tools. From precise prong settings to flawless polishing, every detail is handled with care.
Before your ring ships, it undergoes a multi-step inspection to ensure the diamond is secure, the band is smooth, and the finish is perfect, so your special moment begins with a ring that’s truly flawless.
Frequently Asked Questions
1. How long does shipping take to the UK?
Shipping takes 12 to 22 days to your doorstep in the UK.
2. Is the ring made from real gold and diamonds?
Yes! All rings are made from 100% solid 14K & 18K gold and feature real lab-grown diamonds.
3. Are lab-grown diamonds as good as mined ones?
Yes. Lab-grown diamonds are chemically and optically identical to mined diamonds—just created more sustainably.
4. Will I receive a certificate with my ring?
Yes. All engagement rings come with an IGI certificate and full documentation.
5. Can I return or exchange my ring?
We only accept returns if the item is damaged or the wrong product is delivered.
6. Do you offer free shipping in the UK?
Yes, we offer free shipping across the UK with every order.
7. Will I receive tracking info?
Yes. You’ll get a tracking number once your ring has shipped.
8. Can I customize my engagement ring?
Absolutely! We welcome custom orders—just email us with your dream design.
9. Is the ring safe for sensitive skin?
Yes. Our rings are hypoallergenic and nickel-free, safe for daily wear.
10. How can I contact The Karat Store for support?
Email us anytime at contact@thekaratstore.uk for help, custom designs, or order updates.