10.61 Ct. Grey Cabochon Moonstone

This exceptional translucent grey moonstone weighs 10.61 carats, and measures 16.86 x 13.16 x 6.29 mm, presented in a classic oval cabochon that optimizes its adularescent effect, and offers a tactile, museum quality feel. This piece exemplifies the island s reputation for fine moonstones, with a medium color intensity that provides a subtle, neutral body tone, allowing the internal sheen to read clearly across different lighting conditions. The clarity is graded eye clean, evaluated at eye level, which means there are no inclusions visible to the unaided eye to interrupt the smooth, floating band of light, and the excellent polish enhances the silky, uninterrupted surface that cabochon lovers prize. There has been no enhancement to this gem, a purity factor that appeals to educated buyers who value natural material integrity and provenance, and we stand behind the origin and assessment provided. In comparison with other gemstones in the same visual category, this moonstone displays adularescence that is softer and more ethereal than the directional, multicolored labradorescence seen in labradorite, and it lacks the sharp faceted brilliance of sapphire or diamond because its optical beauty arises from coherent light scattering within feldspar layers rather than high refractive index or dispersion. Compared with precious opal, which exhibits play of color through diffraction of light to produce strong spectral flashes, this moonstone offers a restrained single hue sheen that appears to move under the surface, an effect prized for its understated elegance and wearable versatility. The cabochon cut is the ideal presentation for this phenomenon, as faceting would diffuse the sheen and reduce the cohesive floating light. For collectors and designers seeking a gem with a refined, internal glow rather than overt sparkle, this 10.61 carat oval is a superior choice, combining eye clean clarity, honest no enhancement status, and a polished finish that maximizes the gem s natural adularescence, and we are ready to assist with any further grading details, setting recommendations, or certification requests.