Long Cushion — The Elongated Cousin of the Square Cushion Cut
Long Cushion — The Elongated Cousin of the Square Cushion Cut
A cushion-cut gemstone with rectangular outline, typically 1.15:1 length-to-width or greater
A long cushion is a cushion-cut gemstone whose outline is rectangular rather than square, typically with a length-to-width ratio of 1.15:1 or greater. The cut retains the cushion's defining features — softly rounded corners, a pillow-like silhouette, and brilliant or modified-brilliant faceting — but stretches the outline along one axis. Long cushions appear in both diamonds and coloured stones and are increasingly specified in custom commissions where buyers want the historical character of a cushion paired with the elongating effect of a more rectangular shape on the finger.
Outline geometry
Cushion ratios fall on a continuum. At 1.00:1 to roughly 1.10:1 the stone reads as a square cushion, with the cushion's pillow softness dominating the impression. From about 1.15:1 the eye begins to register the outline as elongated, and at 1.25:1 to 1.40:1 the long cushion proper has clearly distinct proportions. Beyond about 1.50:1 the outline approaches that of an elongated cushion or what some traders call a cushion brilliant rectangle; the cut continues to be sold as a cushion but begins to compete with elongated radiant and modified emerald cuts in market positioning.
There is no globally enforced standard for where the square cushion ends and the long cushion begins. GIA, AGS, and the major coloured-stone laboratories report the actual length and width on their certificates rather than classifying the stone into a named subtype, and the trade then applies the long-cushion label informally based on the resulting ratio.
Faceting variants
The two principal cushion faceting families both appear in long-cushion form. The cushion brilliant uses a relatively small number of large facets in a brilliant pattern, producing broad flashes of light return — sometimes described in the trade as chunky scintillation, characteristic of older mine-cut and antique-cushion stones. The cushion modified brilliant, also known as the crushed-ice cushion, uses a denser pattern of smaller facets that produces finer, glittering scintillation more comparable to a round brilliant.
Buyers should be specific about which they want when commissioning a long cushion. The two faceting families look different face-up despite sharing the same outline, and the value implications also differ: chunky-flash antique-cushion-style stones command premiums in vintage and bespoke markets, while crushed-ice cushions are more easily sourced and tend to price closer to round-brilliant equivalents.
Why cutters choose the long cushion
Cutters choose the long cushion for several reasons. The first is rough yield. Many gem-quality crystals — particularly tourmaline, beryl, sapphire, and topaz — grow as elongated prisms; cutting a square cushion from such rough wastes substantial material on either end, while a long cushion preserves more of the original weight. For high-value rough where retention of carat weight directly affects realised price, the long-cushion compromise between brilliance and yield is often preferred to a more wasteful square cushion or round brilliant.
The second reason is design. A long cushion sits on the finger differently from a square stone, appearing larger relative to its carat weight and offering an elongating optical effect on the wearer's hand. This makes the cut popular for engagement-ring centre stones in modern, less symmetrical settings, and for statement coloured-stone rings where finger coverage is part of the brief.
In coloured stones
For coloured stones, the long cushion has a specific colour-management benefit. Colour saturation in faceted gems depends on the path light travels through the stone before exiting back to the eye; longer paths through coloured material yield more saturated face-up colour. A long cushion provides longer interior light paths along its principal axis than a square cushion of equivalent depth, which can deepen apparent colour in lightly saturated material such as pale aquamarine or zoned tourmaline. The same geometry can also reduce windowing — the pale, washed-out central area visible in shallow stones — when properly proportioned.
For deeply saturated material such as fine ruby or vivid blue sapphire, the calculus inverts: a square cushion may show colour better, because the long-cushion geometry can over-darken stones that already have heavy saturation. Cutters and cutting plans for high-value coloured rough are typically modelled stone by stone rather than chosen by general rule.
In the trade
Long cushions trade alongside square cushions on RapNet for diamonds, on coloured-stone exchanges for ruby, sapphire, and emerald, and through the major auction houses for important pieces. Pricing varies with cutting style, ratio, and the underlying stone; antique-cushion long cushions in fine diamonds can carry significant premiums over their crushed-ice contemporaries, and unusual ratios in coloured stones may be either premium-priced for their distinctiveness or discounted for their narrower buyer pool. We recommend that buyers shopping a long cushion clarify the desired ratio and faceting style before searching, and view candidate stones in person where possible, because face-up appearance varies more with proportion in the cushion family than in most other cuts.