5.55 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

One exquisite translucent oval white moonstone, weighing 5.55 carats, is presented by The Natural Gemstone Company, with dimensions 13.65 x 7.36 x 6.81 millimeters, oval outline, and a classical cabochon profile. The piece exhibits a near colorless body tone with translucent clarity, evaluated as very slightly included at eye level. The cabochon cut is executed to emphasize optical phenomena typical of orthoclase feldspar based moonstone, producing a soft adularescent sheen that appears as a floating light band when the stone is moved under directional illumination. No enhancement has been applied to this specimen, and the origin is Ceylon, Sri Lanka, a locale known for producing moonstones with clean body color and stable optical characteristics.

From a lapidary perspective this moonstone demonstrates disciplined preforming and cutting methodology, with the length to width ratio of approximately 1.86 providing an elegant elongated oval suitable for a variety of design restraints. The cabochon exhibits a well centered dome and a relatively high crown in relation to overall depth, the 6.81 millimeter height contributing to enhanced internal light paths and improved adularescence. The cutter oriented the foliation planes to maximize the scattering of light across the microscopic exsolution lamellae, a technique that intensifies the floating sheen without compromising the stone integrity. The excellent polish reported reflects a final finishing sequence using progressively finer abrasives and a high performance polish compound, delivering a smooth surface with minimal polish lines, and a lustrous surface finish that is free of dulling abrasions.

Clarity evaluation at eye level returns a very slightly included grade, indicating sparse inclusions that do not materially disrupt the visual continuity of the adularescent band, but rather contribute to the stone character. These inclusions are consistent with natural growth features and fine particulate inclusions typical of gem quality moonstone, and they are oriented in a manner that does not interfere with light transmission in typical setting orientations. The near colorless intensity yields a neutral body that supports a range of perceived sheen colors, most commonly white to faint blue flash depending on incident light angle. Translucency is uniform across the table and crown, permitting light to enter and be diffusely reflected by internal structures, creating a soft, ethereal glow rather than a harsh reflection, a quality highly prized by connoisseurs who prioritize optical depth and subtlety.

For practical application in jewelry design the dimensions and profile are particularly well suited to bezel settings, cabochon prong mounts, and custom inlay work where stability and protection are priorities. The substantial height provides room for fashioning secure bezels that do not obscure the adularescent area, and the near colorless body adapts well to mixed metal palettes, including yellow gold, rose gold, and platinum, with each setting metal slightly influencing perceived warmth of the stone. Given the mineral hardness and cleavage characteristics of moonstone, careful consideration for protective mounting and wearability is advised, especially in rings subject to daily wear, and recommended practices include lower bezel walls and recessed mounting to reduce exposure to impact. The Natural Gemstone Company can assist with custom setting recommendations and bespoke mounting options, and can provide photographic and optical documentation on request, supporting confident selection by designers and collectors who value precise craftsmanship and provenance.