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15% OFF WEDDING AND ENGAGEMENT RINGS CODE EASTER15 ENDS
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We aim to make choosing your perfect wedding or engagement ring as easy and stress-free as possible, which is why we offer flexible no obligation consultation options to suit your needs. Explore a wide range of stunning rings and receive tailored advice in the setting that works best for you.  

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Lab-Grown Round Diamond Engagement Rings

Celebrate your love with the timeless brilliance of a lab-grown round diamond engagement ring from Joshua James. Renowned for their exceptional fire, brilliance, and unmatched symmetry, round diamonds are the most sought-after shape, delivering the ultimate sparkle. Our lab-grown diamonds offer dazzling beauty, while allowing you to achieve a bigger stone with a higher quality grading—all at a more accessible price.

From classic solitaire designs to halo settings and diamond shoulder styles, our collection is expertly crafted in 18ct white, yellow, and rose gold, as well as Platinum 950. Every ring showcases an IGI-certified lab-grown diamond, guaranteeing outstanding quality and ethical sourcing. Discover the perfect diamond engagement ring that reflects your forever love.
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Why Choose a Round Lab-Grown Diamond Engagement Ring from Joshua James?

At Joshua James, we make selecting your perfect lab-grown round diamond engagement ring as seamless and stress-free as possible. We offer free, no-obligation consultations with expert guidance to help you find the best ring for your budget. Every lab-grown round diamond we sell is IGI certified, ensuring quality and authenticity. Your ring will also be hallmarked, and its craftsmanship is guaranteed, giving you complete peace of mind, and with our free ring resizing service in the first year you can ensure the perfect fit for the years to come.

Why Choose a Lab-Grown Round Diamond for Your Engagement Ring?

A round lab-grown diamond—also known as a brilliant round cut diamond—offers unmatched fire and scintillation, making it the most brilliant diamond shape available. The precision-cut facets and optimal angles maximise light reflection, ensuring a dazzling sparkle from every perspective.

Choosing a lab-grown round diamond engagement ring allows you to select a larger, higher-graded diamond at a more affordable price compared to natural diamonds. With exceptional beauty and value, lab-grown round diamonds are an increasingly popular choice for those seeking a timeless and radiant engagement ring.

Discover our stunning collection of lab-grown round diamond engagement rings today and find the perfect symbol of your love at Joshua James.