Radiant Cut Lab-Grown Diamond Bridal Set Engagement Rings in 18K White Gold Under £3,000
Radiant Cut Lab-Grown Diamond Bridal Set Engagement Rings in 18K White Gold Under £3,000
Lab-grown diamonds are chemically, physically, and optically identical to mined diamonds. They have the same crystal structure, hardness (10 on the Mohs scale), refractive index, and thermal conductivity. The only difference is their origin — grown in a controlled laboratory environment in 6–10 weeks rather than formed over billions of years. Lab-grown diamonds are typically 60–80% less expensive than equivalent natural diamonds, allowing you to choose a larger, higher-quality stone within your budget.
The radiant cut combines the elegant shape of an emerald with the brilliant-cut faceting of a round, producing exceptional fire in a rectangular or square silhouette. Its cropped corners give it a distinctive look that is both modern and versatile, while its faceting pattern hides inclusions well.
Bright, modern elegance at an accessible price. 18K white gold contains 75% pure gold alloyed with white metals such as palladium or silver, finished with a rhodium plating for a bright, reflective white appearance. It offers the elegant look of platinum with a lighter weight.
The £2,000–£3,000 range unlocks larger lab-grown diamonds (1.5ct+) or your first natural diamond engagement ring. This is where the full breadth of MOH's collection becomes available.
Bridal Set rings with a 1ct lab-grown diamond start above £3,000
At 1ct, even lab-grown bridal set rings start above £3,000.
Need help finding the perfect ring? Book a free consultation — our experts can work with any budget.
Pricing Guide
Radiant Diamond Price Guide
Radiant diamond prices updated daily. Book a free consultation to see diamonds in person at our Hatton Garden atelier.
0 results
Radiant cut engagement rings are a flawless combination of rectangular elegance with softened edges and brilliant-cut sparkle. A hybrid diamond shape, the radiant cut is a clever fusion of the step cut of the emerald and the brilliant cut of the round — delivering exceptional fire from every angle.
From solitaire to side stone settings, discover our radiant cut designs or create your own through our ring builder in 18kt white, yellow, or rose gold, or platinum.
Radiant Cut Lab-Grown Diamond Bridal Set Engagement Rings in 18K White Gold Under £3,000 — FAQs
Expert Knowledge
Guides & Education
Our expert guides help you make informed decisions with confidence.
Understand the 4Cs, shapes, and certification — everything you need to choose with confidence.
Read GuideStyles, settings, and how to find the ring that tells your story.
Read GuideWhat to expect at every price point — from £500 to £10,000+.
Read GuideThe complete comparison — properties, pricing, and which is right for you.
Read GuidePlatinum, white gold, yellow gold, rose gold — properties, care, and pricing.
Read GuidePractical tips, ring sizing, and what to look for when buying online.
Read GuideExplore
Continue Browsing
By Shape
More Collections
Stay Connected
Be the First to Know
New collections, exclusive offers and jewellery inspiration from Hatton Garden.





