A branded cushion is any cushion-cut diamond or gemstone whose facet arrangement, proportions, or silhouette are protected by trademark, patent, or both, and marketed under a registered trade name. Where the standard cushion cut is a broad family of related styles unified chiefly by a softly squared or rectangular outline with rounded corners, branded cushions impose precise, reproducible specifications — a defined facet count, a stipulated length-to-width ratio, controlled crown and pavilion angles — that allow a cutter or licence-holder to guarantee a consistent optical signature across every stone bearing that name. The commercial logic is straightforward: a named, certifiable cut commands a premium and builds brand equity in a market where undifferentiated cushion cuts span an enormous range of quality and character.

Historical context

The cushion outline has existed in various forms since at least the eighteenth century, when the old mine cut — characterised by a high crown, small table, large culet, and squarish girdle — was the dominant style for fashioned diamonds. As cutting technology evolved through the nineteenth and early twentieth centuries, the old mine cut gradually gave way to the round brilliant, but the cushion silhouette never disappeared entirely. By the late twentieth century, improved computer modelling and precision laser-cutting equipment made it feasible to revisit the cushion form with the same analytical rigour that had been applied to the round brilliant, opening the door to proprietary designs that could be mathematically defined and consistently reproduced.

The broader phenomenon of branded cuts — the Asscher, the Princess, the Radiant — had already demonstrated that a named, protected cutting style could achieve lasting market recognition. Branded cushions followed the same logic, targeting buyers who wanted the romantic, antique-inflected silhouette of a cushion combined with the optical performance guarantees associated with modern precision cutting.

Defining characteristics

No single technical profile defines all branded cushions; each proprietary design sets its own specifications. Nevertheless, several parameters are typically controlled and disclosed:

• Facet count and arrangement. Standard cushion cuts vary widely — from the 58 facets of a cushion-modified brilliant to configurations with additional pavilion mains or split lower girdle facets. Branded designs fix a precise count and layout, which determines the stone's light-return pattern and the character of its scintillation.
• Length-to-width ratio. Some branded cushions are explicitly elongated, departing from the near-square proportions of the classic cushion to produce a more rectangular face-up outline. This is a deliberate aesthetic choice that also affects how the stone faces up in terms of apparent size per carat.
• Crown and pavilion angles. Controlled angles are the primary mechanism for managing brilliance, fire, and the balance between the two. Branded designs typically specify tolerances tight enough to ensure that any two stones of the same brand behave similarly under the same lighting conditions.
• Girdle finish and culet. Details that affect durability and the stone's face-up appearance are usually specified, particularly in designs intended to evoke antique cutting styles while meeting modern durability standards.

Notable examples

The Ashoka cut is among the most widely recognised branded cushions. Developed by William Goldberg and named after the ancient Mauryan emperor Ashoka, it is an elongated cushion with 62 facets, a length-to-width ratio of approximately 1.33:1, and a relatively narrow width that gives it a distinctive, almost rectangular face-up silhouette. The design is said to have been inspired by a rare diamond of similar shape found in India. Ashoka-cut diamonds are sold exclusively through William Goldberg and are accompanied by a certificate of authenticity; the name and cut are trademarked. The elongated format means that an Ashoka-cut stone typically faces up larger than a round brilliant of equivalent carat weight, a selling point that the brand actively promotes.

The Krupp Diamond, now known as the Elizabeth Taylor Diamond, is a cushion-cut stone of historical note rather than a branded cut in the proprietary sense, but its fame has contributed to the cultural cachet of the cushion silhouette at the high end of the market. It is sometimes cited in discussions of branded cushions because its profile — a large, well-proportioned cushion with exceptional clarity — has become a reference point for what the form can achieve.

Beyond these well-documented examples, numerous smaller cutters and jewellery houses have registered proprietary cushion variants, typically distinguishing themselves through specific pavilion facet configurations that produce either a crushed-ice appearance (many small, randomly oriented reflections) or a chunky, well-defined pattern of larger light return zones. The distinction between these two optical characters is a significant point of differentiation in the branded cushion market.

Optical performance and the crushed-ice question

One of the central debates in the cushion-cut market — branded or otherwise — concerns the relative merits of the crushed-ice and chunky-pattern optical effects. The crushed-ice appearance, produced by split lower girdle facets and certain pavilion configurations, creates a glittering, almost liquid shimmer that some buyers find highly desirable and others find lacking in the bold flashes associated with a round brilliant. Chunky-pattern cushions, by contrast, produce larger, more defined light-return zones that more closely resemble the scintillation pattern of a round brilliant and are generally preferred by buyers who prioritise brightness and fire over texture.

Branded cushion designs frequently position themselves explicitly within this debate, specifying facet arrangements that reliably produce one character or the other. This is one of the genuine value propositions of a branded cut: a buyer who has seen and approved the optical character of one stone in a branded line can reasonably expect the same character in another stone of the same brand, provided the grading laboratory confirms the cut falls within specification.

Certification and authentication

Because the premium commanded by a branded cushion depends on verifiable conformity to the brand's specifications, certification is integral to the commercial model. Most established branded cushion programmes require that stones be graded by a recognised laboratory — typically the Gemological Institute of America (GIA), the International Gemological Institute (IGI), or an equivalent body — and that the laboratory report either identifies the cut by its branded name or confirms the proportions that define it. Some brands issue their own supplementary certificates of authenticity alongside the laboratory report.

The GIA does not grade cut quality for fancy shapes as it does for round brilliants; its reports for cushion cuts describe proportions and finish but do not assign an overall cut grade. This means that the branded cut's own specifications, and the brand's internal quality control, carry more weight than they would for a round brilliant, where the GIA cut grade provides an independent benchmark. Buyers are therefore advised to understand the specific parameters of a branded cushion before purchase, rather than relying solely on laboratory grading.

Market positioning and pricing

Branded cushions typically command a premium over comparable unbranded cushion cuts, the magnitude of which varies considerably by brand recognition, rarity of the cutting style, and the overall quality of the stone. For highly established brands such as Ashoka, the premium can be substantial and is supported by genuine scarcity — the elongated proportions required by the design mean that rough yield is lower than for a standard cushion, and only rough of suitable shape and quality can be used. For less established branded designs, the premium may be modest and is more dependent on the retailer's marketing than on any inherent scarcity of the cut.

In the secondary market, branded cushions generally retain their premium better than unbranded cushions of equivalent quality, provided the brand remains active and the stone's provenance — including its certificate of authenticity — is intact. Stones that have lost their documentation may trade at or near unbranded prices, underscoring the importance of maintaining complete paperwork.

Further reading

• GIA — Cushion Cut Diamonds
• GIA Gems & Gemology — Grading Fancy-Shape Diamonds