Platinum Lab Grown Diamond Engagement Rings
Platinum lab-grown diamond engagement rings combine a colourless diamond centre with the cool, naturally white appearance of 950 platinum. Discover round and oval diamonds in classic solitaires, fine shoulder-set designs and more decorative settings. Platinum provides a refined frame that keeps attention on the cut and proportions of the diamond, from delicate bands to more substantial designs.
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Oval Lab Diamond Platinum Petite Hidden Halo Pavé Shoulder Set
Choosing a Platinum Lab Grown Diamond Engagement Ring
Platinum provides a naturally white setting for a lab grown diamond, with a substantial feel and a surface that develops a characteristic patina through wear. Our 950 platinum contains 95% platinum and does not need rhodium plating to maintain its underlying colour.
Consider the setting profile
A solitaire allows the chosen lab diamond to be the main feature, while a bezel gives it a defined metal outline. Compare the centre shape, band width and height of the basket together. The ring should feel balanced on the finger and sit comfortably with any wedding band you plan to wear.
Platinum can be professionally assessed and refinished when needed. If you are choosing between two white metals, compare the different finish and care needs of our white gold lab diamond engagement rings. The best choice is not simply which metal is described as harder, but which appearance, weight and maintenance you prefer.
2026 Award Nominations
Award Winning Jeweller
We’re proud to be recognised consistently by the UK jewellery industry’s leading awards programmes. In 2026, Lily Arkwright has been shortlisted for Branded Boutique of the Year at the Professional Jeweller Awards and Bridal Jewellery Retailer of the Year at the UK Jewellery Awards, reflecting our continued commitment to exceptional customer service, product innovation, and ethical craftsmanship.
These latest nominations build on previous industry recognition, including being shortlisted for Bridal Jewellery Retailer of the Year at the 2025 UK Jewellery Awards and Independent Retailer of the Year at the Professional Jeweller Awards 2025. We were also finalists for Retail Team of the Year at both the Retail Jeweller Awards and Professional Jeweller Awards in 2024, recognising the passion, expertise, and dedication of our team.
We’re honoured to be recognised for helping thousands of couples find the perfect engagement rings and wedding rings, with a strong focus on choice, transparency, and personalisation. As an award-winning jeweller, we remain committed to delivering exceptional service, exceptional craftsmanship, and responsibly sourced lab-grown diamonds, moissanite, and natural diamonds, ensuring every customer can find a ring that perfectly reflects their love story.
GUIDES & INSPIRATION
Platinum Lab Diamond Rings: More to Explore
EXPERT, QUALIFIED ADVICE
Expert Lab-Grown Diamond Ring Advice
Compare lab-grown diamond cuts, clarity, colour and proportions with help from our jewellery consultants. Our team includes JET-qualified specialists and colleagues following the National Association of Jewellers' training pathway, offering practical guidance on grading reports and the settings that suit different diamond shapes.
Visit our Manchester or London showroom to compare designs, or arrange a virtual consultation.
Platinum Lab Grown Diamond Engagement Rings FAQs
Why choose platinum for a lab-grown diamond engagement ring?
Platinum has a naturally cool white tone that works beautifully with a colourless lab-grown diamond. It can give the ring an elegant, understated appearance without introducing the warmth of yellow or rose gold. We'd compare the amount of metal visible in the claws and band, as that changes how prominent the centre feels. Platinum also has a substantial character of its own, so the chosen band width is worth considering.
What maintenance does a platinum lab-grown diamond engagement ring need?
Platinum develops a gentle surface patina through wear, which some people love because it gives the ring character. If you prefer a brighter finish, a jeweller can advise on polishing. We'd recommend gentle cleaning appropriate to the chosen diamond setting and periodic checks of claws or small accent stones. A platinum ring is made for wearing, but it isn't immune to marks or impacts, so a little routine care goes a long way.
How does a platinum setting affect the apparent colour of lab-grown diamond rings?
Platinum's white colour generally gives a colourless lab-grown diamond a crisp, cool frame. We'd look closely at whether the head and claws are platinum as well, because those details sit immediately beside the stone. With a larger diamond, the band width and metal around the centre can make more difference than you might expect. Comparing the finished ring with a warm gold version is a useful way to find the look you prefer.