Custom Radiant Cut Diamond Rings — Intense Sparkle
Combining the linear outline of an emerald cut with the fiery brilliance of a round diamond, custom radiant engagement rings deliver unforgettable dazzle. Handcrafted by Riolls.
Crafting your custom radiant diamond ring in 5 steps
Share your vision for your radiant ring — square vs elongated ratio, setting preference, and gold karat.
We hand-select GIA or IGI certified radiant cut diamonds evaluated for corner symmetry and intense scintillation.
Review photorealistic 3D CAD renders showing prong style, hidden halo placement, and band profile.
Handcrafted in Surat by a single goldsmith skilled in precision claw setting and solid metalwork.
Delivered in luxury packaging with full insurance and independent GIA gemological certificates.
Authenticity & Material Guarantee
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Why choose a custom radiant cut diamond engagement ring?
Patented in 1977 by Henry Grossbard, the radiant cut was engineered specifically to bring round-brilliant scintillation to an elongated square or rectangular outline. Boasting 70 facets, it produces immense light dispersion while offering cut-corner durability against accidental chipping.
At Riolls Jewels, customising a radiant cut ring lets you pair your stone with hidden pave under-halos, solid 4-prong claw settings, or trapezoid side stones.
Handcrafted in solid gold or 950 platinum with GIA/IGI certification and direct Surat atelier craftsmanship.
Everything you need to know about custom radiant diamond rings
What is a radiant cut diamond?
Designed by Henry Grossbard in 1977, the radiant cut is a hybrid shape that combines the rectangular silhouette and cut corners of an emerald cut with the brilliant 70-facet pattern of a round diamond. It offers intense fire and durability.
What is the difference between a radiant cut and a cushion cut diamond?
A radiant cut diamond has straight geometric edges with cut, angled corners. A cushion cut diamond has soft, rounded pillow-like edges. Radiant cuts display a crisp, shattered-glass fire, whereas cushions offer a warmer, softer sparkle.
Why are radiant cut diamonds so durable?
Unlike princess cut diamonds which have sharp 90-degree corners prone to chipping, a radiant cut features trimmed, beveled corners. This structural feature makes radiant cut diamonds exceptionally durable for daily wear in engagement ring mountings.
What length-to-width ratio is recommended for an elongated radiant diamond?
For a square radiant cut, a ratio of 1.00 to 1.05 is standard. For a popular elongated radiant cut, a ratio of 1.20 to 1.35 creates a slender profile that lengthens the finger.
Commission your custom radiant diamond ring
Book a private design session to pick your GIA radiant cut diamond and engineer your setting.