Melbourne client care · Made in Surat
The radiant cut combines the rectangular shape of the emerald cut with brilliant-cut faceting — delivering maximum sparkle in a rectangular format. Available in square or elongated proportions, the radiant is one of the most versatile and brilliant of all diamond shapes.
The radiant cut was developed in 1977 by Henry Grossbard specifically to bring brilliant-cut sparkle to a rectangular shape. Before the radiant, rectangular diamonds were step-cut (emerald, baguette) — sophisticated but less brilliant than round. The radiant changed this: rectangular outline, brilliant-cut faceting underneath, maximum light performance in a non-round format.
The radiant cut has cropped corners — like the emerald cut — which gives it an octagonal outline that is softer than the sharp corners of a princess cut. This makes it more practical in a ring setting and gives it a slightly softer character than the geometric precision of the princess.
| L:W Ratio | Visual Character | Best For |
|---|---|---|
| 1.00–1.05 | Square radiant — compact, balanced | Buyers who want a square shape with brilliant sparkle (alternative to princess) |
| 1.10–1.20 | Slightly elongated — subtle elongation | A common middle ground — some elongation without being clearly rectangular |
| 1.20–1.35 | Elongated radiant — clearly rectangular | Buyers who want the emerald cut shape with brilliant sparkle |
The brilliant-cut faceting of the radiant breaks up the stone into many small, interacting light events. This makes it very effective at hiding colour warmth — the same reason round brilliants and ovals are colour-forgiving. An H or even I colour radiant looks white in most conditions.
Book a free online consultation. Yash Chandpara shows radiant cut diamonds in square and elongated proportions on screen.
