1.30 Ct. Grey Spinel from Burma (Myanmar)

This Burmese 1.30 carat cushion shape grey spinel, offered by The Natural Gemstone Company, measures 6.71 by 5.59 by 4.39 millimeters, and presents as a transparent stone with medium color intensity, a clarity grade of very slightly included evaluated at eye level, and an excellent polish, no enhancement. The present proportions result in an overall depth of approximately 71.3 percent, a dimension that has been intentionally retained to support strong internal light return in a cushion silhouette while preserving face up presence and depth of tone. The mixed brilliant cut combines a modified cushion outline with a carefully arranged crown of brilliant style facets and a pavilion that transitions to step like planes, a configuration selected to balance scintillation with stable color distribution in a grey material.

The mixed brilliant faceting enhances the spinel inherent optical properties in several technical ways, the broad, well angled crown facets act as directional windows that admit and refract incident light into the pavilion, the pavilion planes then redirect light back through the table and crown, producing a controlled mix of contrast and brightness. The cushion outline contributes to a softer dispersion of light than a round, allowing facets to create larger flashes of white and subtle grey scintillation that emphasize tone rather than overt color play, the moderate depth prevents excessive windowing and limits extinction, and the excellent polish minimizes light scattering at facet junctions so that specular reflections remain sharp. Spinel s relatively high refractive index around 1.718 combined with its single refractive index character means light paths are predictable, the cutter has exploited this by proportioning crown height and pavilion angles to maximize light return while preserving the medium color intensity.

From a craftsmanship standpoint the stone demonstrates precise facet junctions and symmetry consistent with master cutting, the mixed brilliant approach affords versatility for practical jewellery settings because the pavilion depth gives secure bezel or prong seating without compromising optical performance, and the very slightly included clarity at eye level will be inconspicuous once mounted, especially under normal indoor lighting. For clients seeking a technical balance of optical performance and durable elegance, this Burmese cushion grey spinel offered by The Natural Gemstone Company is presented as a technically minded choice that emphasizes engineered light performance, stable tone, and refined finishing.