Engagement Rings
Radiant Cut engagement rings.
The radiant cut diamond engagement ring offers the best of both worlds — the elegant rectangular silhouette of an emerald cut combined with the dazzling brilliance of a round diamond. First introduced in 1977 by Henry Grossbard, the radiant cut features trimmed corners and a complex facet pattern that produces vibrant fire and exceptional sparkle. Its versatile shape transitions seamlessly from classic to contemporary settings, making it a stunning choice for those who want a distinctive diamond with maximum light performance. Browse our curated selection of GIA and IGI certified radiant cut diamonds, or book a free consultation at our showrooms.
Buying Guide
Everything you need to know about radiant cut diamond engagement rings.
The radiant cut is a brilliant-cut hybrid that was specifically designed to maximise light return within a rectangular or square outline. With 70 facets, it produces a lively, vibrant sparkle that rivals the round brilliant while offering a more distinctive shape. Radiant cuts are available in both square and elongated rectangular proportions — a length-to-width ratio of 1.00 to 1.05 delivers a square look, while 1.20 to 1.40 creates a classic rectangle. The trimmed corners make radiant cuts more durable than sharp-cornered shapes like princess cuts, and their brilliant faceting hides inclusions well, allowing you to choose a slightly lower clarity grade for better value.
How does a radiant cut differ from an emerald cut diamond?
While both shapes share a similar rectangular outline with cropped corners, their faceting is fundamentally different. Emerald cuts use step-cut facets that create a hall-of-mirrors effect, while radiant cuts use brilliant-cut facets for maximum sparkle. If you love the emerald shape but want more fire and brilliance, the radiant cut is the perfect alternative.
What is the difference between a radiant cut and a cushion cut?
Radiant cuts have straight sides, a rectangular or square outline, and distinctive trimmed corners that create a more geometric, angular appearance. Cushion cuts have curved sides and rounded corners for a softer, pillow-like shape. Both offer brilliant-cut sparkle, but the radiant feels more modern and architectural while the cushion leans towards vintage romance.
Should I choose a square or elongated radiant cut diamond?
This comes down to personal preference. A square radiant (ratio 1.00–1.05) offers a compact, balanced look, while an elongated radiant (ratio 1.20–1.40) creates a more dramatic, finger-flattering silhouette. We recommend trying both proportions on your hand at our showrooms to see which one you prefer.
How brilliant is a radiant cut compared to other diamond shapes?
The radiant cut is one of the most brilliant fancy shapes available, with 70 facets designed to maximise light return. It rivals the round brilliant for sparkle while offering a more unique silhouette. Its brilliant-cut faceting also does an excellent job of masking inclusions and body colour, making it a forgiving and eye-catching choice.
What are the best settings for a radiant cut diamond engagement ring?
Radiant cuts look exceptional in four-prong solitaire settings that showcase their geometric outline, as well as in halo settings that amplify their already impressive sparkle. The trimmed corners pair beautifully with trapezoid or baguette side stones for a sophisticated three-stone design. Visit our showrooms to explore our full range of setting options.
