0.26 Ct. Moonstone from Ceylon (Sri Lanka)

This transparent 0.26 carat emerald cut rainbow moonstone measures 4.47 x 3.38 x 2.74 mm, and it presents a clean, architectural silhouette that highlights its optical phenomena and internal character. The stone has an emerald cut, a clarity grade of very slightly included evaluated at eye level, light color intensity, and an excellent polish, with no enhancement applied. Originating from Ceylon Sri Lanka, this moonstone carries the provenance that experienced collectors and connoisseurs associate with finely developed adularescence and exceptional material quality. The emerald cut is uncommon for moonstone and is intentionally chosen to emphasize the stone’s transparency and to focus the play of light across parallel planes, making the adularescent flash and internal structures particularly legible to a practiced eye.

What makes this specimen unmistakable is its suite of natural inclusions and microstructures that act as the stone’s fingerprint. Rainbow moonstone owes its sheen to microscopic lamellar intergrowths of orthoclase and albite, and in this gem those lamellae are exceptionally well ordered, producing a lively spectral flash when light is brought to the table. Complementing the lamellar layers are fine growth features and occasional tiny platelets and fluid microinclusions, which scatter light in a way that enhances color dispersion and creates the multi-hued flashes characteristic of true rainbow moonstone. These inclusions, while described as very slightly included at eye level, are not detractive, they are diagnostic. They confirm natural origin, they affirm the absence of treatments, and they contribute directly to the gem’s visual signature and provenance from Sri Lanka. For the educated buyer this combination of transparency, deliberate emerald cut, excellent polish, natural lamellar adularescence, and intact unenhanced material elevates the stone beyond simple ornament to a collectible object of gemological interest. At The Natural Gemstone Company we document these attributes to help you assess rarity, suitability for fine jewelry settings, and long term value, and we welcome inquiries about matching holders and custom settings that preserve and showcase the stone’s unique internal character.