47.42 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

One translucent grey moonstone, weight 47.42 carats, oval shape, with dimensions 28.64 x 18.91 x 12.12 mm, presented as a traditional cabochon cut to optimize the stone's optical properties. The gem exhibits a refined, soft sheen consistent with moonstone adularescence, a subtle internal shimmer that moves beneath the surface as light or viewing angle changes, and the cabochon profile enhances this effect by providing a smooth domed surface. Clarity is graded eye clean at standard viewing distance, with no visible inclusions that interrupt the surface luster, and color intensity is described as intense for a grey tone, producing a deep, uniform body color that contributes to visual weight and presence. The polish is excellent, yielding a mirror like finish across the dome and allowing the adularescent sheen to read cleanly against the translucent body. No enhancements have been applied to this specimen, and the documented origin is Ceylon, Sri Lanka, a source long recognized for producing high quality moonstones with appealing adularescence.

From a gemological perspective this moonstone is a feldspar variety with optical properties best appreciated in cabochon form, and its sizable weight and dimensions make it suitable for a range of jewelry applications or for a collector seeking an impressive, single stone example. With a Mohs hardness around 6 to 6.5 and characteristic cleavage directions inherent to feldspar minerals, the stone should be set and worn with consideration for potential abrasion and impact, and a protective setting is recommended for daily wear. Bezel settings and protective mounts are effective at securing the domed profile while minimizing exposure of the girdle and pavilion to knocks, and larger pendants and brooches can also highlight the stone while reducing risk from frequent contact. The eye clean clarity and excellent polish make the surface appearance highly attractive without additional treatments, and the uniform grey color with intense saturation allows the gem to function as a neutral yet substantial focal point that pairs harmoniously with both warm and cool metal tones.

Provenance from Ceylon, Sri Lanka, is an important attribute for collection and valuation, as material from this region is appreciated for quality and consistent optical effects, and the absence of enhancements supports transparent assessment and appraisal. For those considering a mount or commission, the stone's 28.64 x 18.91 x 12.12 mm dimensions translate to a commanding presence in a ring or pendant, and the cabochon dome will produce a pleasing sense of depth under lighting. Care recommendations include cleaning with mild soap and warm water using a soft brush, avoiding ultrasonic or steam cleaners and harsh chemicals, storing the piece separately from harder gemstones to prevent surface abrasion, and avoiding sudden temperature changes and hard impacts given the feldspar cleavage tendencies. Documentation and photographic records are advised for insurance and appraisal purposes, and a standard gemological report can be provided upon request to confirm weight, dimensions, origin, and the absence of treatments.

The Natural Gemstone Company offers this moonstone as a single, well documented specimen suitable for bespoke projects or addition to a curated collection, and we can provide additional high resolution imagery, measured reports, and mounting suggestions to assist design and setting decisions. For professional jewelers and private clients who require exacting specifications, the measured dimensions and clear grading information facilitate precise setting work and appraisal, and our team can advise on metal choices, complementary accent stones, and protective design details to preserve the stone's appearance and durability over time. Please contact The Natural Gemstone Company for further technical information, certification options, or to discuss secure shipping and handling arrangements, and we will supply any supplemental documentation needed to support a confident acquisition and successful incorporation into a finished piece.