Buy Three Stone Lab Diamond Engagement Ring

Symbolic and stunning, our three-stone lab diamond engagement ring represents the past, present, and future of your love story. With a central diamond flanked by two brilliant side stones, this style blends elegance with deep meaning, making it one of the most romantic choices you can make.

At The Karat Store, each ring is handcrafted using 100% solid 14K & 18K gold and features IGI-certified lab-grown diamonds that sparkle with intention and purpose. Whether you prefer classic round cuts, mixed shapes, or vintage-inspired settings, you’ll find designs that tell your story your way. All pieces are certified, ethically sourced, and shipped free across the UK in secure packaging.

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History, Types, Cultural Significance Of Three Stone Lab Diamond Engagement Ring

The three-stone lab diamond engagement ring isn’t just a design—it’s a love story in diamond form. With one stone representing your past, one your present, and one your future, this ring style captures the emotional journey of a relationship better than words ever could.

At The Karat Store, we’ve reimagined this beloved setting using IGI-certified lab-grown diamonds and solid 14K & 18K gold. Our collection offers a wide range of styles, from sleek and modern to vintage-inspired, with options in white, yellow, and rose gold. Choose matching shapes for perfect symmetry or mix diamond cuts—like a round centre with pear or baguette sides—for a custom feel.

Our lab-grown diamonds are physically, optically, and chemically identical to mined diamonds but created through eco-conscious processes. This allows us to offer brilliant, ethically sourced stones without the environmental impact or ethical concerns of traditional mining.

The three-stone setting is ideal for those who want more than a solitaire but less than a halo or pavé-heavy design. It offers balance, symbolism, and added sparkle—perfect for proposals, vow renewals, or milestone gifts.

Each ring in this collection is crafted by hand, carefully set by expert jewellers, and inspected for quality at every stage. Whether you want a modern, minimal look or a detailed vintage finish, our three-stone engagement rings are made to last and designed to inspire.

Quality of Material Used

Our three-stone rings are made using 100% solid 14K & 18K gold—never plated or filled—ensuring strength, lustre, and long-term wearability. Choose from white, yellow, or rose gold to match your personal style.

Every diamond in our rings—centre and side—is lab-grown, hand-selected for cut, clarity, and brilliance. These diamonds are eco-friendly, ethically created, and set using secure, durable techniques. All rings are nickel-free and hypoallergenic, making them perfect for sensitive skin and everyday use.

Certifications Provided

Each three-stone lab diamond engagement ring includes a certificate from IGI (International Gemological Institute) for the centre diamond, confirming its quality across the 4Cs: cut, clarity, colour, and carat weight.

Our gold is BIS hallmarked to verify its 14K & 18K purity, and a detailed invoice is included with every order. These certifications give you confidence in the value and authenticity of your jewellery, ensuring it meets the highest global standards for quality and trust.

Craftsmanship

Creating a three-stone ring takes balance, precision, and an expert eye. Our jewellers carefully position each stone for symmetry and maximum brilliance. Prongs are aligned, polished, and tightened to ensure lasting strength and comfort.

Every ring is handcrafted, then subjected to a multi-step inspection that checks everything from setting security to visual harmony. The result? A piece of fine jewellery that feels meaningful, looks luxurious, and lasts forever.

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. Are your rings made with real gold?
Yes, all rings are crafted in solid 14K & 18K gold, never plated.

3. Can I return the ring if needed?
We accept returns only for damaged or incorrect items.

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

5. Do I get a tracking number?
Yes, a tracking link is provided once your order is shipped.

6. How can I contact your team?
You can email us at contact@thekaratstore.uk for any questions.

7. Are your diamonds certified?
Yes. The centre stone is IGI certified, and documentation is included.

8. Can I customise a three-stone ring?
Yes, we accept custom orders for diamond shapes, sizes, and settings.

9. Is your jewelry hypoallergenic?
Absolutely. All rings are made with nickel-free, skin-safe gold.

10. Is the packaging secure?
We use tamper-proof, secure packaging to ensure safe delivery.