26.01 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

One translucent orange moonstone, weight 26.01 carats, oval shape, dimensions 18.32 x 16.42 x 11.36 mm, cabochon cut, clarity grade very slightly included at eye level, intense color intensity, excellent polish, no enhancement, origin Ceylon Sri Lanka. This specimen presents precise metrology together with a substantial mass that is unusual for gem quality moonstone. The oval outline is proportionally balanced, the length 18.32 mm and width 16.42 mm yielding a classic elongated silhouette that accommodates a generous dome height of 11.36 mm. The cabochon profile has been calibrated to maximize internal light play while maintaining secure proportions for a variety of mounting styles. The absence of any enhancement is confirmed, so the color and surface character are entirely natural, direct from the Sri Lankan deposit to The Natural Gemstone Company inventory.

Optically this moonstone exhibits the characteristic adularescence caused by lamellar twinning within the alkali feldspar lattice. The cutter oriented the piece to intercept the twinning planes across the dome, producing a luminous, lunar sheen that moves evenly with rotation of the stone. Color is intense orange with warm saturation and even distribution across the table and pavilion of the cabochon, indicating consistent chemical trace elements and minimal zoning. Clarity is evaluated as very slightly included at standard eye magnification and at normal viewing distance, meaning inclusions are present but do not dominate the visual field or interrupt the adularescent effect. These internal features are typical of genuine moonstone and serve as indicators of natural formation rather than treatment. The excellent polish contributes to high surface reflectivity and a smooth tactile finish, enhancing both visual depth and the wearer experience.

From a lapidary and setting perspective the specimen demonstrates superior craftsmanship. The cabochon cut is fully symmetrical with parallel girdle alignment and a well centered apex, which is essential for delivering a consistent adularescent band and for predictable light return in jewelry settings. The substantial dome height of 11.36 mm was intentionally preserved to deepen the three dimensional appearance and to allow strong light scattering across the lamellae, favoring pronounced internal sheen even under diffuse illumination. The cutter employed progressive grits and hand finishing techniques to eliminate any faceting marks and to attain the excellent polish noted in the grading. For practical mounting recommendations, a bezel setting will protect the sizeable dome and provide secure retention while showcasing the oval silhouette, whereas a secure prong setting with a low seat can also be used for dramatic open back presentation. Keep in mind the Mohs hardness of moonstone is approximately 6 to 6.5, so advise on protective design choices and everyday care protocols. Cleaning is best performed with warm soapy water and a soft brush, avoiding steam or ultrasonic cleaners that can exploit internal fractures or existing inclusions.

As a gift this 26.01 carat orange moonstone makes a striking and memorable choice for someone who appreciates fine natural gems and considered craftsmanship. The combination of rare size, intense natural color, and pronounced adularescence creates immediate visual impact, suitable for a statement pendant or a distinguished cocktail ring where the dome can interact with light. The natural provenance from Ceylon Sri Lanka adds provenance value, reflecting the unique geological conditions that yield high quality feldspar material in that region. At The Natural Gemstone Company we place emphasis on transparent grading detail and meticulous cutting practices, so this moonstone arrives with clear data on weight, dimensions, cut style, clarity assessment, and enhancement status. For a customer seeking a meaningful present that balances scientific interest and aesthetic drama, this moonstone is engineered to impress, to be mounted with longevity in mind, and to become a signature piece that conveys both rarity and thoughtful selection.