At Diamondrensu UK, we believe your ring should say something about who you are not just what tradition expects. Our Fancy Colour Lab Grown Diamond Engagement Rings give you that freedom. Every ring in this collection carries a diamond that holds real colour vivid yellow, romantic pink, oceanic blue, or lush green grown in a laboratory to the very same standard as a mined stone, but without the ethical and environmental cost.
If you love colourful fine jewellery that feels personal and meaningful, you've come to exactly the right place. Whether you want something bold and unforgettable or softly romantic, this collection gives you colour, quality, and conscience all in one ring.
A fancy colour diamond carries a natural hue inside the stone itself. Unlike coloured gemstones, diamonds earn their colour through trace elements or structural changes during the growth process. Nitrogen produces yellow. Boron creates blue. Pink and green colours come from pressure and radiation changes during formation.
Every fancy colour lab grown diamond at Diamondrensu UK carries full IGI certification the same independent grading standard you'd expect from any premium mined diamond. When you buy a fancy colour lab grown diamond from us, you buy a certified, real diamond. It just carries colour, character, and a clear conscience.
Explore the Colours We Offer
We don't just offer one colour. We offer a full spectrum from warm sunny yellows to deep ocean blues. Think of our collection as your destination for multicolour diamond rings, where every shade tells a different story and suits a different personality.
Fancy Yellow Diamonds
Yellow diamonds bring warmth, sunshine, and joy to an engagement ring. They suit couples who want something cheerful and distinctive a ring that draws the eye and holds the smile.
We pair our fancy yellow diamonds with white gold, yellow gold, and rose gold settings. Yellow diamonds look especially stunning in halo and three-stone designs, where white accent diamonds frame the colour stone and amplify its brilliance from every angle.
Fancy Pink Diamonds
Pink diamonds carry romance in their colour. They feel soft,
feminine, and deeply personal the kind of stone that makes a proposal feel truly intimate.
Our lab grown pink diamonds work beautifully in solitaire settings, where the colour takes centre stage, and in pavé halo designs, where the delicate pink glows against a ring of white diamonds. Rose gold settings bring out the warmth in pink stones particularly well.
Fancy Blue Diamonds
Blue is for the bold. A blue diamond makes a striking statement calm, deep, and unmistakably different. Our lab grown blue diamonds range from soft sky tones to rich, vivid ocean blues.
Blue diamond rings pair beautifully with white gold and platinum settings, which let the cool colour speak for itself. We offer blue centre stones in oval, cushion, radiant, and pear cuts across this collection.
Fancy Green Diamonds
Green lab grown diamonds carry an earthy, organic beauty that suits nature lovers and free spirits. From delicate sage to vivid forest green, these stones make engagement rings that feel truly one of a kind.
Our green diamond designs often feature nature-inspired settings leaf-style prongs, organic band shapes, and botanical details that echo the colour of the stone itself.
Ring Styles in This Collection
We design every ring in this collection to let the colour diamond shine. Here are the styles you'll find:
- Solitaire: Clean, timeless, and focused entirely on the centre stone. The colour diamond carries the whole ring, with nothing to compete with it.
- Halo: A frame of white accent diamonds surrounds the colour centre stone, amplifying its brilliance and making the ring look larger and more dramatic.
- Hidden Halo: A subtle ring of diamonds sits beneath the centre stone, invisible from above. This adds brilliance without changing the overall silhouette.
- Three Stone: A colour diamond sits at the centre, flanked by two white or complementary stones. This design carries beautiful symbolic meaning past, present, and future.
- Nature Inspired: Organic prong shapes, leaf details, and flowing band designs that echo the natural world. These settings suit green and pink diamonds especially well.
- Pavé: Tiny diamonds run along the band, creating continuous sparkle that travels from the finger up to the centre stone.
- Bezel Set: A clean metal frame wraps around the colour stone, giving the ring a modern, protective look that works perfectly for everyday wear.
Metal Options
The metal you choose shapes how the colour reads on the finger. We offer every design in:
- White Gold: Crisp and modern, white gold makes colour diamonds pop by providing a clean, neutral contrast.
- Yellow Gold: Warm and traditional, yellow gold draws out the richness in yellow and green diamonds in particular.
- Rose Gold: Romantic and soft, rose gold enhances pink diamonds and adds a vintage warmth to any colour stone.
- Platinum: The most durable and hypoallergenic option, platinum suits blue and green diamonds beautifully with its naturally cool, bright finish.
Build Your Own Handcrafted Diamond Ring
Can't find exactly what you're looking for? We'll create it for you.
Diamondrensu UK specialises in fully bespoke fancy colour engagement rings. Every piece starts as your idea and ends as a beautifully handcrafted diamond ring made just for you. You choose the colour, the shape, the carat weight, the setting style, the metal, and every detail that makes the ring uniquely yours.
Our design team works with you one-to-one either through our free virtual appointment service or over email and guides you through each step. We present 3D renders of your design before we craft anything, so you see exactly what you're getting before we make a single mark in metal.
You can customise:
- Colour and intensity of the lab grown diamond (vivid, intense, fancy light)
- Diamond shape oval, round, pear, cushion, radiant, marquise, Dutch marquise, antique cut, rose cut
- Setting style solitaire, halo, hidden halo, three stone, nature inspired, or fully original
- Metal type and band width
- Prong style claw, double claw, compass, leaf, or bezel
- Personal engravings inside the band
Book your free virtual appointment and let's start creating.
Luxe Colour Lab Diamond Rings Real Luxury, Honest Pricing
Fancy colour mined diamonds rank among the rarest and most expensive stones on earth. A vivid pink or blue mined diamond can cost tens of thousands of pounds even at a small carat weight. Our Luxe Colour Lab Diamond Rings give you that same richness, depth, and intensity of colour at a price that makes real sense.
Because we grow our diamonds in a lab, we remove the rarity premium while keeping every bit of the beauty. You get a fully certified, deeply coloured, expertly set diamond ring and you spend far less than you would on a mined equivalent. That's not a compromise. That's a smarter way to buy luxury.
Why Choose Diamondrensu UK?
- IGI Certified Diamonds Every centre stone in this collection carries full IGI certification. You receive the grading report with your ring, giving you complete confidence in your purchase.
- Handcrafted by Skilled Artisans Our jewellers craft each ring individually, setting every stone by hand. We never cut corners on quality because your ring deserves the same care as the relationship it celebrates.
- Ethical and Sustainable Lab grown diamonds require no mining, no land disruption, and no conflict supply chains. You wear your ring with pride, knowing it carries a clean story from creation to your finger.
- Up to 30% Off Our fancy colour lab grown diamonds give you exceptional quality at a fraction of the price of mined colour diamonds.
- Free Worldwide Shipping We deliver to the UK and internationally, with free shipping on every order.
- 30-Day Easy Returns If your ring doesn't feel right, our returns process keeps things simple and stress-free.
Find Your Colour. Find Your Ring.
Browse the full collection of Fancy Colour Lab Grown Diamond Engagement Rings below. Filter by colour, shape, style, carat weight, or metal to find the ring that speaks to you.
If you'd love a more personal experience, book a free virtual appointment with our team. We'll help you find or build the exact ring you have in mind.
