A lab-grown diamond is a real diamond — grown under precisely controlled laboratory conditions rather than deep within the earth, yet sharing the exact same chemical composition, diamond brilliance, and diamond sparkle as a mined stone. At FineDiam, our lab-grown diamond engagement rings collection brings this modern marvel of diamond grading together with the craftsmanship of our Hatton Garden, London workshop, giving couples a way to choose exceptional diamond fire without compromising on ethics or budget.

Every lab grown engagement ring in this collection is IGI-certified, so you can shop with complete confidence in its diamond clarity, diamond colour, and diamond cut. Whether you're drawn to a classic lab diamond solitaire ring, an elaborate halo, or a vintage lab diamond ring with heritage detailing, our collection spans every popular cut — round, oval, cushion, emerald, pear, and more — set in platinum, 18K white gold, 18K yellow gold, 18K rose gold, or 9K gold. Each made-to-order engagement ring is handmade in London, pairing genuinely ethical engagement rings with outstanding value. Browse our full range of lab created diamond rings below and find the lab diamond proposal ring that tells your story.

Why Choose a Lab-Grown Diamond Engagement Ring?

Lab-grown diamonds share identical optical properties with mined diamonds — the same diamond brilliance, fire, and scintillation that make a diamond sparkle under any light. Because a lab-grown diamond and a mined diamond are chemically identical carbon crystal structures, no gemologist can distinguish between them without specialist equipment; the only real difference is origin. This means every ring in the collection — from a solitaire to a trilogy — carries the same lifetime durability as a natural stone, rated 10 on the Mohs hardness scale. What sets lab-grown diamonds apart is value: because they take weeks rather than millions of years to form, your budget typically stretches to a noticeably larger carat weight. That value, combined with a lower environmental footprint, full traceability, and conflict-free sourcing, has made sustainable engagement rings especially popular with younger buyers and anyone who wants a genuinely ethical engagement ring — with no compromise on the sparkle a proposal deserves.

Explore Our Engagement Ring Styles

The setting you choose shapes how your diamond catches the light, and how the ring feels on your hand every single day.

Every style above is available in 1 carat and 2 carat centre stones and across our full range of cuts and precious metals, so you can pair the setting you love with the shape that suits you.

Choose Your Favourite Diamond Shape

Diamond shape has just as much influence over a ring's personality as its setting.

Radiant, Marquise, Asscher and Heart shapes each bring their own character, from geometric drama to elongated glamour, and can be sourced to order across our full lab-grown diamond range. Whichever silhouette you choose, every stone is graded for diamond cut, diamond colour and diamond clarity before it is hand-set by our jewellers.

Select the Perfect Precious Metal

All four metals are available in 18K gold or platinum, with 9K gold options for a lighter-weight, more affordable alternative — every piece finished to full UK hallmarked jewellery standards.

Why Buy from FineDiam?

Every ring in this collection is designed and hand-finished in our Hatton Garden workshop — London's historic jewellery quarter — and made to order rather than mass-produced. Each stone carries IGI (International Gemological Institute) certification, giving you independent verification of its 4Cs before you buy, and every setting is hallmarked to UK hallmarked jewellery standards by the London Assay Office. We source only conflict-free diamonds, back every order with attentive customer service from enquiry through to delivery, and offer secure, transparent online shopping with no hidden costs. If you already have a design in mind, our custom jewellery service lets you start with a diamond or a setting and build outward from there. You can also explore our wider diamond rings collection, wedding rings and wedding bands, or complete the look with matching diamond earrings, diamond bracelets and diamond necklaces. Every ring arrives in luxury packaging, ready to make the moment feel exactly as special as it should.

Find Your Perfect Ring

A lab-grown diamond engagement ring from FineDiam brings together IGI certified lab diamonds, ethical sourcing and genuinely exceptional value, without asking you to compromise on craftsmanship or brilliance. From a classic solitaire to an elaborate halo, and from a round brilliant to a vintage-inspired emerald cut, our London engagement rings workshop turns every request into a ring built to last a lifetime. Explore our full engagement rings collection, browse natural diamond engagement rings if you would prefer a mined stone, or get in touch about a custom jewellery design of your own. However you choose to propose, you can shop with total confidence in the diamond, the craftsmanship and the value behind it. Browse the collection today and find the lab-grown diamond engagement ring that is meant to be yours.