10.79 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

This translucent grey moonstone weighs 10.79 carats and measures 13.84 by 8.58 by 11.48 millimeters, presented in an oval cabochon cut that emphasizes a high domed profile and substantial depth, reflecting a deliberate cutting strategy to maximize adularescence. The cabochon displays precise symmetry between its length and width, with well controlled dome curvature and a clean, rounded base, which indicates careful preform work and skilled trimming of the rough. The substantial height to span ratio produces a pronounced internal light path that enhances the lamellar interference typical of orthoclase feldspar, and the excellent polish produces a smooth, glass like surface that allows adularescent motion to read clearly across the dome when illuminated. The cut orientation appears to be aligned with the stone s internal cleavage planes to optimize the characteristic floating sheen, a technique regularly employed for premium moonstones.

Clarity is graded as very very slightly included at eye level, indicating minute inclusions that are difficult to detect without deliberate viewing, and these inclusions do not interrupt the smoothness of the adularescent band or the overall translucency. The color registers as medium light grey in intensity, a neutral tone that provides versatility for settings while allowing internal light diffusion to remain unobstructed, and the stone is unenhanced, natural in all respects. Origin is Ceylon, which is consistent with fine quality moonstones exhibiting clean adularescence and even body color, and provenance from this locality often correlates with well preserved crystal structure and low treatment history. For secure mounting and best visual effect, this high dome cabochon benefits from a protective bezel or partial bezel with an open gallery to permit light from multiple angles, and it pairs well with metals and designs that showcase the floating sheen rather than faceted brilliance. The Natural Gemstone Company stands behind the gem content and craftsmanship, and this piece is ideal for connoisseurs seeking a technically exemplary, naturally sourced moonstone with pronounced optical effects and meticulous lapidary execution.