Shop Princess Cut Lab Diamond Engagement Ring

Bold. Brilliant. Beautiful. Our princess-cut lab diamond engagement rings are made for those who love clean lines and timeless sparkle. Known for its square shape and exceptional brilliance, the princess cut is a modern classic, combining fire, symmetry, and elegance in one stunning stone.

At The Karat Store, we set each princess diamond in 100% solid 14K & 18K gold and guarantee authenticity with an IGI certification for every lab-grown diamond. Whether you’re looking for a solitaire, halo, or pavé-accented style, this collection offers handcrafted perfection for every budget and taste. With free UK shipping, tamper-proof packaging, and full certification, this is fine jewellery you can trust for the most meaningful moment of your life.

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History, Types, Cultural Significance Of Princess Cut Lab Diamond Engagement Ring

The princess-cut diamond, introduced in the 1960s, has quickly become one of the most sought-after styles in engagement rings. Its square shape and pointed corners give it a bold, geometric appearance, while its brilliant faceting maximises sparkle, almost rivalling the round cut in radiance.

Our collection of lab-grown princess-cut engagement rings features elegant and refined designs made for modern love stories. Whether you prefer the simplicity of a solitaire setting, the shimmer of pavé bands, or the glamour of a halo ring, each piece is thoughtfully handcrafted to highlight the brilliance of the princess cut.

We use solid 14K & 18K gold—available in white, yellow, or rose—ensuring strength, comfort, and long-lasting beauty. The lab-grown diamonds we use are eco-conscious and ethically created, offering the same fire, durability, and clarity as mined stones without the environmental or ethical concerns. That’s why more couples across the UK are turning to certified lab diamond jewellery for their forever rings.

Princess-cut diamonds are loved for their clean look and versatile styling. They suit both minimalist and ornate designs, and the square silhouette adds a touch of strength and confidence to your ring’s symbolism. Every ring from this collection is made to last a lifetime, just like the love it represents.

And because every proposal is unique, our team at The Karat Store ensures that every ring is carefully inspected, securely packaged, and shipped across the UK with love.

Quality of Material Used

Our rings are built with 100% solid 14K & 18K gold, not plated or filled, giving you long-lasting strength and a rich, luxurious finish. Choose from white, yellow, or rose gold based on your style and skin tone. The princess-cut lab diamonds are hand-selected for their brightness, symmetry, and quality.

All rings are nickel-free and hypoallergenic, making them ideal for everyday wear, even for sensitive skin. Expertly set and polished by hand, these rings offer comfort, shine, and structure that hold up beautifully over time. With The Karat Store, you're investing in heirloom-worthy jewellery at a smart value.

Certifications Provided

Each princess-cut lab-grown diamond ring is backed by an IGI (International Gemological Institute) certificate, confirming the diamond’s cut, clarity, colour, and carat. You’ll also receive a BIS hallmark on the gold to validate its 14K & 18K purity.

We include a detailed invoice with every order for transparency and ease of insurance or resale. Buying certified jewellery means knowing exactly what you're getting—authenticity, value, and peace of mind. With us, certification isn’t an option—it’s a guarantee.

Craftsmanship

Crafting a princess cut ring requires precision, especially with those sharp corners and faceted brilliance. Our artisans handcraft each piece with care, ensuring the diamond sits securely while maximising its fire. We use high-quality prong and bezel settings, polish every edge by hand, and pay close attention to symmetry and stone security.

Each ring undergoes a multi-step inspection process, checking clarity, structure, setting alignment, and shine before it’s shipped to you. The result is handcrafted fine jewellery that delivers elegance, comfort, and long-term durability.

Frequently Asked Questions

1. How long does delivery take to the UK?
Shipping takes 12 to 22 days to your doorstep in the UK.

2. Is the gold in these rings real?
Yes. All rings are made with solid 14K & 18K gold, never gold-plated.

3. Can I return my ring if I don’t like it?
We accept returns only for damaged or incorrectly delivered items.

4. Is shipping free across the UK?
Yes. We offer free, insured shipping.

5. Will I get a tracking number?
Yes. Once your ring is dispatched, you’ll receive a tracking link via email.

6. How do I contact customer support?
Reach out to us at contact@thekaratstore.uk with any questions.

7. Are your diamonds certified?
Yes. All lab-grown diamonds come with an IGI certificate.

8. Can I order a custom princess-cut ring?
Yes. We accept custom orders for settings, metals, and design tweaks.

9. Is your jewelry safe for sensitive skin?
Yes. We use hypoallergenic, nickel-free 14K & 18K gold.

10. Is your packaging secure?
Absolutely. We use tamper-proof, protective packaging for every order.