9.61 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

The Natural Gemstone Company presents a single, beautiful translucent white moonstone, weighing 9.61 carats, with a classic round shape and dimensions of 12.63 by 12.50 by 7.98 millimeters. This gem displays the attributes that serious buyers evaluate first, including a cabochon cut that is specifically chosen to showcase the stone quality known as adularescence, a near colorless color intensity that reads as soft white in daylight, and an excellent polish that produces a smooth reflective dome. The clarity grade is very very slightly included, evaluated at eye level, which means the stone appears clean to the naked eye while retaining minor internal characteristics that confer natural origin and character. There has been no enhancement applied to this moonstone, and the stone is sourced from Ceylon Sri Lanka, a provenance that is historically associated with fine quality feldspar specimens and a consistent tradition of careful cutting.

From a gemological perspective, this moonstone is an attractive example of plagioclase feldspar, with internal lamellar structures that scatter incident light to produce its gentle sheen. The cabochon shape is the ideal cutting style for moonstone because it preserves and concentrates the adularescent effect across a rounded surface, unlike faceting which disperses light rather than layering it. The reported clarity of very very slightly included at eye level indicates that any inclusions are minimal and do not interrupt the visual flow of the sheen, enabling the gem to read as a clean and serene centerpiece in jewelry. The near colorless tone enhances versatility, allowing the stone to harmonize with yellow gold, rose gold, white gold, and platinum, while its translucent body invites creative settings that let light interact with the material.

For customization, this moonstone is exceptionally adaptable and can be translated into an array of jewelry types while maintaining structural integrity and aesthetic appeal. In ring form, a low profile bezel will protect the cabochon while offering an elegant disc of sheen that is ideal for everyday wear, whereas prong settings can elevate the stone to maximize light exposure and visual drama in cocktail or statement rings. A halo of small diamonds or colored sapphires can be used to frame the moonstone, increasing perceived size and adding sparkle without overpowering the soft optical effect characteristic of moonstone. The generous 12.63 by 12.50 millimeter footprint makes this stone a compelling choice for a solitaire pendant, the kind of single mount that allows a mobile bail or open gallery to showcase the adularescence as the wearer moves.

Beyond classic solitaires and halos, there are numerous artisanal and modern approaches that suit this gem, including bezel set stacking rings with contrasting metals, custom signet styles that incorporate engravable shanks, and drop earrings where matched smaller cabochons or accents can balance the composition. Because moonstone is relatively delicate compared to corundum and diamond, certain technical choices will enhance longevity, such as protective bezel walls, closed or partially closed backs when color saturation is desired, and secure prong geometry when prongs are used. Avoid tension settings and settings that subject the stone to sharp knocks at the girdle, and consider an open gallery when the design intention is to let more light enhance adularescence. Our design team at The Natural Gemstone Company can provide CAD previews and recommended metal choices to align wearability with visual objectives.

Care instructions and practical considerations for an educated buyer are straightforward and important. Moonstone registers around 6 to 6.5 on the Mohs hardness scale, which means it requires more protective mounting and mindful day to day use than harder gemstones. Cleaning should be done with mild soapy water and a soft brush, and the stone should not be exposed to ultrasonic or steam cleaners, nor to acids and abrasive chemicals. When designing a piece, select settings that minimize the chance of edge impacts, and consider periodic inspections of the mount to ensure the cabochon remains secure. The combination of a natural origin from Ceylon Sri Lanka, no enhancements, an excellent polish, a substantial 9.61 carat weight, and a cabochon form that optimizes adularescence makes this moonstone a compelling purchase for collectors and designers alike. If you would like bespoke design options or technical recommendations for setting types and metal pairings, The Natural Gemstone Company is available to assist with measurements, renderings, and professional guidance to translate this stone into a lasting and wearable work of jewelry.