13.29 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

One translucent grey moonstone is offered by The Natural Gemstone Company, presented as an oval shaped cabochon with a total weight of 13.29 carat, and overall dimensions of 15.95 by 11.97 by 9.27 millimeters. The cabochon form is symmetric and well proportioned, reflecting the traditional approach to cutting moonstone in order to maximize surface sheen and internal light play. The shape and size make this specimen suitable for a variety of jewelry applications, and the substantial weight gives it presence when set. The stone is unenhanced, reported as natural with no treatments, and its origin is Ceylon, Sri Lanka, a region known for producing fine moonstone material.

Optical and material characteristics have been evaluated at eye level, and the clarity grade has been assigned as very slightly included, indicating minor inclusions that do not significantly disrupt the visual appearance under typical viewing conditions. The color intensity is described as very light, presenting a soft grey body tone that interacts subtly with light rather than dominating it. The surface exhibits an excellent polish, resulting in smooth reflections and a pleasing tactile finish. The cabochon cut has been executed to emphasize the classical adularescent effect characteristic of quality moonstone, with the domed surface allowing light to disperse across the interior layers evenly.

Measurements and proportions are provided for precise setting and design planning, with the length of 15.95 millimeters and width of 11.97 millimeters offering a balance between visual impact and wearable scale, and a depth of 9.27 millimeters indicating a solid pavilion height within the cabochon form. The weight of 13.29 carat corresponds with the given dimensions and the typical specific gravity of feldspathic moonstone material, and the absence of enhancement confirms that the observed optical qualities are intrinsic to the natural crystal structure. Photographic imagery accompanies the description to illustrate surface condition and general appearance, and the lighting in the images has been selected to represent the stone under standard studio illumination for accurate color and sheen assessment.

Care and practical considerations are noted to assist in the long term enjoyment and preservation of this moonstone, given its natural composition and cabochon treatment. As a member of the feldspar group, moonstone benefits from gentle cleaning with warm soapy water and a soft cloth, with avoidance of prolonged exposure to harsh chemicals, ultrasonic cleaners, and steam, which may affect surface finish or interact with existing inclusions. For setting recommendations, a protective bezel is often preferred for cabochons of this depth and weight to secure the stone and reduce the risk of edge impacts, while well designed prong settings can also be used when the design incorporates adequate protection. The Natural Gemstone Company remains available to provide measurements, additional images under varied lighting, and guidance for mounting and care, ensuring full disclosure of origin, weight, dimensions, cut, clarity, color intensity, polish, and enhancement status for the stone.