143.33 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

This exceptional opaque brown moonstone weighs 143.33 carats, shaped into a commanding oval measuring 42.52 x 26.89 x 16.50 mm, and presented as a flawless cabochon with an excellent polish. Originating from Ceylon Sri Lanka, this specimen displays an intense color intensity and an eye clean clarity grade when evaluated at eye level, a rare combination for a stone of this scale. No enhancement has been applied, preserving the gem in its pure, natural state. Offered exclusively through The Natural Gemstone Company, this moonstone is more than a jewel, it is a singular trophy for the collector who seeks a piece that stands apart from mass produced offerings, a bespoke object of desire that few will ever have the privilege to own.

Under magnification this moonstone reveals the inclusions that give it an unmistakable signature, microscopic lamellar platelets and ultrafine layered intergrowths that are responsible for the stone s satin adularescence, a soft luminous sheen that seems to float beneath the surface. Delicate silky needles and minute mineral platelets lie aligned within the feldspar matrix, forming a complex internal topography that reads like a fingerprint unique to this cabochon. Tiny, well oriented exsolution features create subtle banding and depth, so when the light plays across the oval dome the effect is a living, moving glow that shifts with the angle of view. These inclusions do not detract from the gem s purity, they authenticate it, providing physical proof of natural formation and geological history that cannot be replicated by enhancement or synthetic processes. For the connoisseur who prizes provenance and individuality, this moonstone speaks directly to a refined sensibility, offering a rare combination of majestic size, eye clean presentation, and a signature internal character that is both scientific and poetically beautiful. Acquiring this gem from The Natural Gemstone Company means joining an elite group of collectors who value originality, owning a singular natural wonder that will remain a conversation piece and heirloom for generations.