Cushion vs Radiant Cut: Which Should You Choose?
Close enough to be confused in a photograph, different enough to be an easy choice once you know what to look at.
Cushion and radiant hold almost the same amount of stone, and the difference is in the corners. A cushion has rounded corners and a softer, pillowy scintillation; a radiant has cropped corners and a sharper, brighter flash. We stock 129 cushion pieces and 78 radiant, both cut to Excellent.
Last updated . Prices are Beyond Carat starting prices and move with the market; we re-check this page quarterly.
Cushion and Radiant Side by Side
| Property | Cushion Cut | Radiant Cut |
|---|---|---|
| Corners | Rounded and soft | Cropped — cut at an angle, giving eight sides |
| Overall impression | Pillowy, antique, softer edged | Sharp, modern, defined |
| Scintillation | Broader and slower — larger flashes of light | Faster and finer — more, smaller flashes |
| Faceting family | Brilliant cut | Brilliant cut |
| Hides inclusions | Yes — brilliant faceting scatters light | Yes — brilliant faceting scatters light |
| Available outlines | Square through to gently elongated | Square through to distinctly elongated |
| Price per carat | Generally below round at the same weight | Generally below round at the same weight |
| Pieces we stock | 129 | 78 |
How They Actually Differ
The corners are the whole decision
Look at the outline before anything else. A cushion has rounded corners, which is where the name comes from — the outline resembles a pillow. A radiant has corners that have been cut off at an angle, giving it eight sides and a distinctly harder edge.
Everything people describe as the character of these two shapes follows from that one difference. Rounded corners read as soft and slightly antique; cropped corners read as modern and deliberate. If you photograph both and cover the corners, most people genuinely cannot tell them apart.
Bottom line: look at the corners. Rounded is a cushion, angled is a radiant.
Scintillation: soft flashes versus fast ones
Both are brilliant cuts, so both sparkle rather than mirror. What differs is the size and pace of the flashes. A cushion's faceting tends to produce fewer, larger flashes — a slower, broader shimmer that people often call pillowy or romantic.
A radiant's faceting is finer and busier, producing more flashes that are individually smaller. In motion it looks quicker and brighter. Neither is objectively better; they are two different answers to the same question, and the honest way to choose is to look at both in the same lighting.
Bottom line: cushion for a softer shimmer, radiant for a faster, brighter one.
Both are forgiving on clarity, which matters more than people realise
Because both are brilliant cuts, both scatter light in a way that masks inclusions. This is the opposite of the step-cut situation, where an emerald or asscher shows what is inside the stone.
In practice that means your budget behaves differently here. On a step cut we would tell you to protect clarity above all. On a cushion or a radiant, carat and cut generally show more than the last clarity grade does — though our floor stays at VVS–VS regardless, so this is a question about where extra budget goes rather than about compromise.
Bottom line: on both shapes, extra budget usually shows more in size than in clarity.
Elongation, and how much shape you can choose
Neither shape is a fixed outline. Both are available from near-square through to elongated, and that choice affects the ring more than the cushion-versus-radiant decision does. An elongated version of either will read larger on the finger and lengthen it visually; a square version will look more compact and substantial.
It is worth deciding elongation first and shape second. A customer who wants a long, elegant stone will be happier with an elongated cushion than with a square radiant, even if they arrived thinking they wanted a radiant.
Bottom line: decide how elongated you want the stone before you decide which of the two cuts it is.
Setting and daily wear
Neither shape has points, so neither carries the fragility considerations that a pear or marquise does. Corners are the vulnerable area on both, and both are naturally more protected than a pointed shape — a cushion because its corners are rounded, a radiant because its are cut away.
That makes both straightforward to set securely and easy to live with day to day. Between them there is no meaningful durability argument. Every diamond we set is graded by IGI, the International Gemological Institute, in D, E or F colour with VVS or VS clarity and an Excellent cut, and the report ships in the box.
Bottom line: durability is a tie. Choose on looks, not on toughness.
Which Should You Choose?
Choose cushion if…
- You want a softer, slightly antique outline rather than hard edges
- You prefer broad, slow flashes to fast, fine ones
- You are drawn to vintage-leaning designs and want the shape to match
- You want the more common of the two — cushion is easier to find a matching band for
Choose radiant if…
- You want defined, modern edges and a more geometric outline
- You prefer a brighter, faster sparkle
- You want something less commonly seen — we stock 78 radiant pieces against 129 cushion
- You like the look of a step cut's outline but want a brilliant cut's sparkle
What we recommend: Radiant is the shape to look at if you like how an emerald cut sits on the hand but want it to sparkle — that is the gap it fills, and it is why people cross-shop it. Cushion is the better answer for a softer, more vintage-leaning ring. Decide elongation first; it changes the ring more than either cut does.
Frequently Asked Questions
Cushion has rounded corners and a softer, pillowy scintillation; radiant has cropped corners and a sharper, more brilliant flash. Both are brilliant cuts, so both sparkle rather than mirror.
Brilliant cuts (round, oval, pear, cushion, radiant) scatter light and mask inclusions. Step cuts (emerald, asscher) show them. Both shapes on this page are brilliant cuts, so both are forgiving.
Elongated shapes read largest. Both cushion and radiant are available elongated, and an elongated version of either will look larger on the finger than a square version of the same weight.
Every shape we cut is available in platinum, white, yellow and rose gold. Silver is offered on earrings rather than on rings, where we recommend gold or platinum for prong security.
Yes. Pointed and elongated shapes often need a contoured or notched band. A square cushion or radiant in a solitaire setting will usually sit flush with a straight band.
Yes. Round costs most per carat because cutting it wastes the most rough. Cushion and radiant both generally sit below round at the same weight.
Shop Both Shapes
Next: emerald vs asscher if the outline is what draws you, all ten shapes compared, and what cut grade measures.
Still Deciding?
Not sure where to start? Book a free 30-minute call with our team — video or phone, no obligation.
More comparisons: Oval vs Round · Emerald vs Asscher · Pear vs Marquise