20.14 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

This listing presents one beautiful translucent grey moonstone weighing 20.14 carats, cut into a classic oval shape with dimensions of 18.99 by 14.18 by 9.75 millimeters, and shaped as a cabochon to maximize optical effect. The stone displays a light color intensity and a soft, silken adularescence that is characteristic of fine moonstone from Ceylon, Sri Lanka, with a cool, subtle sheen that appears to float across the dome when viewed under changing light. Clarity is graded as very slightly included, evaluated at eye level, which indicates only minor internal features that do not interrupt the overall translucency or the quality of the sheen. The polish is excellent, with a smooth, mirror like surface that enhances the stone s tactile and visual appeal. There has been no enhancement, treatment, or dyeing applied to this gem, so what you see is its natural state from origin to finish.

From a gemological perspective this moonstone offers attributes that will interest an educated buyer and a discerning collector alike. Moonstone is a variety of the feldspar group, and the adularescent effect is caused by layered intergrowths of orthoclase and albite that scatter light, producing a floating luminescence rather than a surface reflection. When a cabochon is well proportioned as this one is, the effect is maximized and the dome preserves and showcases the sheen across the face of the gem. A 20.14 carat weight in moonstone is notable, because larger, translucent material with clean appearance and an evenly distributed sheen is less common and therefore commands a premium. The very slightly included clarity at eye level indicates that inclusions are minimal and generally not visible without magnification, which maintains both the aesthetic and the structural integrity of the gem. Origin is an important factor for many buyers, and Ceylon, Sri Lanka is renowned for producing moonstones with pure adularescence and pleasing body tone, which enhances provenance value for collectors and designers seeking authentic natural material.

Practical considerations and stewardship of this gem are straightforward, and The Natural Gemstone Company is pleased to offer guidance and support for setting and care. Moonstone registers around six to six and a half on the Mohs hardness scale, which makes it suitable for pendants, earrings, and rings when the design includes protective settings such as bezels, low prongs, or halo arrangements to buffer against knocks. We recommend avoiding ultrasonic or steam cleaning and keeping the gem away from harsh chemicals and extreme heat, using instead warm soapy water and a soft brush for routine cleaning, and storing the stone separately in a padded compartment to prevent abrasion. For buyers who require third party verification we encourage independent gemological reports and can facilitate photography and additional information about the piece on request. The Natural Gemstone Company stands behind the provenance and the description of this moonstone, and we welcome inquiries about custom mounts, appraisals, and secure shipping options for clients seeking a responsibly sourced, naturally beautiful statement gem.