11.73 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

One translucent oval white moonstone, 11.73 carats, with dimensions 16.13 x 12.06 x 8.21 millimeters, presented in a classic cabochon cut. The gem exhibits the characteristic soft adularescence of true moonstone, appearing as a gentle, billowy sheen across the dome when viewed against a light source. Color intensity is near colorless, providing a neutral body tone that allows the adularescent effect to read clearly without competing hues. Clarity is graded as very slightly included at eye level, indicating minor internal features that do not detract from the overall visual appeal or the play of light. The surface has been finished to an excellent polish, producing a smooth, reflective dome that enhances both luster and the stone’s internal optical phenomena. No enhancements have been applied to this specimen, and its natural translucency and optical properties are inherent.

Origin is Ceylon, Sri Lanka, a recognized source for high-quality moonstone material, and the piece is offered through The Natural Gemstone Company. Given the gem’s cabochon profile and its Mohs hardness in the 6.0 to 6.5 range, we recommend settings that provide edge protection, such as bezel or halo-style mountings for rings, and secure prong or bezel settings for pendants to reduce exposure to abrasion and impact. Routine care should include avoidance of ultrasonic cleaners and harsh chemicals, with cleaning best accomplished using warm soapy water and a soft brush or cloth. The combination of a sizable carat weight, clean near-colorless body tone, and excellent polish makes this moonstone well suited for use as a focal stone in bespoke jewelry designs where the emphasis is on subtle optical character rather than brilliant faceting. Detailed measurements, weight, cut style, clarity assessment, polish grade, enhancement status, and origin are provided to support professional gemological evaluation and thoughtful design decisions.