Looking for sparkle with a conscience? Welcome to our collection of lab-grown diamond jewellery, where timeless design meets modern sustainability. Set in 100% solid 14K & 18K gold, our pieces feature diamonds grown using advanced technology, offering the same brilliance and hardness as mined diamonds, without the environmental cost.

Each piece is certified, hypoallergenic, and handcrafted to perfection. Whether you’re shopping for an engagement ring, a gift, or something to treat yourself, you’ll find elegant styles you can wear with pride. Free UK shipping, secure packaging, and full certification make shopping with The Karat Store effortless and trustworthy.

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    18K Solid Gold Staggered Baguette and Round Lab-Grown Diamond Wide Band

    £1,723.00
    The 18k Solid Gold Staggered Baguette and Round Lab-Grown Diamond Wide Band showcases a sophisticated mix of baguette and round diamonds in a wide band design. Available in white, rose, or yellow gold, this stunning piece boasts VS-SI clarity and I-J color. Certified with BIS Hallmarked, it ensures top quality. With a 10-12 business day shipping time and access to live customer support via chat and video calls, it's the perfect addition to your jewelry collection.
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    18k Solid Gold Stunning Diamond Line Pave Necklace: Flat Octagonal Emerald Shape

    £1,309.00
    A stunning 18k solid gold necklace featuring a flat octagonal emerald-shaped charm with 0.13 carats of pave diamonds. Available in white, rose, or yellow gold. BIS Hallmarked for authenticity. Perfect for adding sophistication to any look.
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    18K Solid Gold Three Stone Halo Lab Grown Diamond Engagment Ring

    £2,072.00

    A 18k gold three-stone halo ring featuring a 2ct round lab-grown diamond with 0.97ct side diamonds in various shapes. Available in white, rose, and yellow gold.

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    18K Solid Gold Three Stone Lab Grown Diamond Ring

    £2,738.00
    A breathtaking 18k solid gold three-stone ring, featuring a 2-carat round lab-grown diamond and 2.5 carats of side stones in various shapes. BIS Hallmarked & IGI Certified.
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    18k Solid Gold Turquoise Evil Eye Lab Grown Diamond Bezel Bracelet

    Original price was: £1,619.00.Current price is: £1,235.00.
    Stylish 18k solid gold bracelet featuring a turquoise evil eye and lab-grown diamond bezel—crafted for protective elegance and ethical sparkle.

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    History, Types, Cultural Significance Of Lab-Grown Diamond Jewelry

    Diamonds have always symbolised love, strength, and beauty. Today, lab-grown diamonds offer those same qualities, just with a cleaner origin story. First created in the 1950s for industrial use, lab-grown diamonds have now become a popular choice in fine jewellery, thanks to improved quality, accessibility, and ethical appeal.

    Our lab-grown diamond collection includes everything from classic solitaires and halo engagement rings to tennis bracelets, ear studs, and modern pendants. Each piece is designed with care, showcasing the fire and brilliance lab-grown diamonds are known for, without the inflated price tag of mined diamonds.

    Why are they so loved in the UK? UK shoppers value ethical sourcing, eco-conscious choices, and great value for money, and lab-grown diamonds deliver on all fronts. They’re chemically identical to natural diamonds, just grown above ground in a controlled environment using clean energy and minimal impact on nature.

    So, whether you’re proposing, celebrating, or simply upgrading your everyday look, lab-grown diamond jewellery is a meaningful and smart choice. At The Karat Store, every design is set in solid 14K & 18K gold, IGI certified, and made to shine for a lifetime.

    Quality of Material Used

    Our lab-grown diamond pieces are always made with 100% solid 14K & 18K gold—never plated or gold-filled. This ensures long-lasting wear, durability, and a true sense of luxury.

    Each diamond is ethically grown, carefully selected for clarity and brilliance, and securely set by hand. These designs are hypoallergenic, perfect for sensitive skin, and ideal for both daily wear and special occasions.

    When you choose our lab-grown diamond jewellery, you’re choosing quality that lasts and values that matter.

    Certifications Provided

    Every lab-grown diamond at The Karat Store comes with a certificate from IGI (International Gemological Institute)—one of the most trusted names in gem grading.

    In addition, each piece features:

    • A 14K & 18K gold purity stamp

    • A detailed invoice

    • A lab report confirming stone authenticity and quality

    Buying certified jewellery gives you peace of mind, confirming that your diamond is genuine, ethically created, and accurately graded. It’s proof of both beauty and integrity.

    Craftsmanship

    Our lab-grown diamond jewellery isn’t just made—it’s carefully crafted by skilled artisans who bring decades of experience to the bench.

    From precise prong settings to flawless polishing, each piece goes through multiple stages of attention and inspection. We ensure a perfect finish, secure stones, and a shine that lasts. Before it ships to you, your jewellery is individually inspected and approved by our quality team.

    You’ll feel the difference from the moment you open the box.

    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. What is the gold quality used in the jewellery?
    All jewellery is made with solid 14K & 18K gold, not plated or filled.

    3. Are the diamonds real?
    Yes! Lab-grown diamonds are real diamonds, identical to mined ones in every way except origin.

    4. What certification comes with lab-grown diamonds?
    Every piece comes with an IGI certification to confirm authenticity and quality.

    5. Can I return a lab-grown diamond item?
    Returns are accepted only if the item is damaged or the wrong product was sent.

    6. Do you offer free shipping in the UK?
    Yes, we offer free shipping across the UK on all orders.

    7. Is tracking available for orders?
    Yes, you will receive a tracking number once your order is shipped.

    8. Can I request a custom lab-grown diamond design?
    Absolutely! We accept custom orders—just contact us with your design ideas.

    9. Is the jewellery safe for sensitive skin?
    Yes, our 14K & 18K gold jewellery is hypoallergenic and safe for daily wear.

    10. How is the jewelry packaged?
    Every item is packed in secure, tamper-proof packaging to ensure it arrives in perfect condition.

    Bonus: How can I contact The Karat Store for support?
    You can reach us anytime at contact@thekaratstore.uk for questions, order updates, or custom requests.