10.75 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

This 10.75 carat oval peach moonstone presents itself as a study in proportion and light transmission, with dimensions of 16.01 x 12.11 x 7.68 mm, a cabochon cut, and a carefully measured dome that balances depth with surface area. The depth to length ratio of approximately 48 percent indicates a moderately high dome, optimized to enhance adularescence while preserving the stone s translucency. The oval outline was executed with precise symmetry, the long to short axis relationship set to maintain visual stability in a variety of mounting designs. The cabochon cutting style here is intentionally free of faceting, focusing on curvature geometry and pavilion shaping to direct internal light scatter. The cutter has considered the interaction of thickness and translucency, arriving at dimensions that sustain the peach body color and allow the internal sheen to develop and travel across the dome without masking the stone s natural warmth.

Clarity and surface finish are decisive factors for moonstone appraisal, and this gem is graded very very slightly included evaluated at eye level, a grade that reflects only minor internal disturbances visible under close inspection and none that compromise the optical effect under normal viewing. In practical terms, the inclusions are internal growth features and fine planar sheen planes that contribute to the characteristic schiller without creating focal fractures or cavities. The excellent polish delivered by expert lapidary work minimizes surface microabrasions, enabling an uninterrupted adularescent flash. The medium color intensity of the peach body tone is uniform throughout the stone, neither washed out nor overly saturated, and is supported by the stone s translucent base which permits light to pass and interact with the orthoclase layering responsible for the adularescence. There is no enhancement, the material is wholly natural, and that untreated state is a key determinant in both gemological integrity and long term value.

Origin is a material parameter of growing importance for knowledgeable buyers, and this moonstone is from Ceylon, Sri Lanka, an origin with an established reputation for producing moonstones of exceptional sheen and clarity. Geological conditions in Sri Lanka favor the formation of clean, well oriented feldspar intergrowths that yield pronounced adularescence, and historically established mining and cutting centers on the island have refined techniques to preserve and accentuate these optical properties. Provenance from Ceylon therefore conveys not only geological quality but also a lineage of artisanal expertise, with cutters who understand how to align the stone s cleavage and growth planes to maximize the moving light effect. Collectors and connoisseurs often attribute a premium to Sri Lankan material because of this combination of intrinsic optical quality and artisanal tradition, and because documented origin supports traceability and responsible sourcing narratives that can be important for both private collectors and retail clients.

From a practical and comparative value perspective, this 10.75 carat peach moonstone occupies a noteworthy place in the market, combining a substantial carat weight with superior polish, well controlled cabochon geometry, a pleasing medium color intensity, and no enhancements. The dimensions and oval form make it suitable for a variety of high quality settings, with bezel or flush settings recommended to protect the dome while allowing the adularescence to remain visible from multiple angles. For designers and discerning buyers seeking an object that reads as both mineralogically instructive and aesthetically refined, this specimen offers an excellent balance of technical attributes. The Natural Gemstone Company is pleased to present this Ceylon peach moonstone as an example of careful selection and lapidary execution, a gem that will hold appeal for collectors who prioritize origin, untreated status, and precise workmanship in their gemstone investments.