7.31 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

This parcel comprises one translucent grey moonstone, precisely weighted at 7.31 carats, with a classic oval outline measuring 14.36 by 10.50 by 6.92 millimeters. The proportions are calculated to deliver a balanced silhouette when set, with a dome height that supports strong internal light play without compromising durability. The gem has been fashioned as a cabochon, an intentional choice for moonstone to exploit its lamellar microstructure and maximize adularescence. The dimensions and carat weight place this stone in a size range well suited to a dominant ring center, a pendant focal point, or a high visibility brooch application, and the measured depth at 6.92 millimeters contributes both to an appealing hand presence and to internal light scattering that enhances the optical effect.

Cutting and finishing have been executed with technical precision to respect the mineralogical constraints of orthoclase feldspar while accentuating optical performance. The cabochon profile shows a clean, evenly rounded dome, oriented along the platy cleavage planes to maximize the interference effect that produces adularescence. The cutter has maintained a symmetric oval outline and controlled rise across the dome to avoid windowing or dead zones, keeping light return consistent across the table. Faceting is absent by design, replaced by a high quality convex polish that yields an excellent surface finish, minimizing surface diffusion and preserving lively reflectance. Edge treatment is smooth and uniform, enabling secure bezel seating without stress concentrations, and the overall cutting strategy balances conservation of weight with optical optimization.

Optical and clarity characteristics are documented as translucent with a clarity grade of very slightly included at eye level, evaluated at normal viewing distances without magnification. In practice this means the stone reads as eye clean to many viewers, with only minor mineral inclusions or planar features discernible under focused inspection, and these do not interrupt the continuity of the adularescent sheen. The body color presents as a medium light grey, a neutral tone that accentuates the internal phenomenon rather than competing with it, and the intensity is graded medium light which preserves translucency while offering sufficient body to display contrast against the adularescent flash. The polish is excellent, producing crisp surface highlights and smooth transitions across the dome, which is critical for moonstones because surface quality strongly influences perceived brightness. There has been no enhancement, the material is natural and untreated, and origin is Ceylon Sri Lanka, a locality known for producing feldspar specimens with well developed lamellar layering and stable color, attributes that contribute to predictable light behavior and reliable lapidary performance.

From a practical and technical perspective, this moonstone benefits from conservative mounting recommendations aligned with its physical properties. The cabochon cut and measured dome make bezel or low profile prong settings preferable to high stress claw mounts, because these approaches distribute mechanical load and protect the edge from impact. The stone is suitable for daily wear if appropriately protected, but like all feldspars it responds poorly to sudden thermal shock and to prolonged exposure to harsh chemicals, therefore ultrasonic cleaning and aggressive steam treatments are not recommended. For designers and connoisseurs evaluating provenance and craftsmanship, The Natural Gemstone Company provides this moonstone with full disclosure of weight, dimensions, cut style, clarity assessment, color intensity, polish grading, enhancement status, and origin, enabling informed decisions for bespoke pieces or fine jewelry collections. The combination of technical lapidary control, neutral grey body color, and distinct adularescence makes this 7.31 carat Ceylon moonstone an excellent choice for projects where optical depth and natural character are primary design objectives.