7.70 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

This item is one beautiful translucent 7.70 carat oval shape white moonstone, presented as a classic cabochon cut, measuring 15.16 x 10.47 x 6.20 mm. The cabochon profile has been shaped to optimize the stone s adularescence, with a gently domed crown and well proportioned height that balances optical play with wearability. Clarity is graded as very slightly included, evaluated at eye level, with inclusions that do not detract from the overall translucency or luminous effect. Color intensity is near colorless, providing a neutral body tone that enhances blue white flashes without introducing body color that can mute the adularescence. The surface finish displays excellent polish, giving crisp reflection highlights and smooth interaction with light, and there has been no enhancement to this material, preserving its natural structure and optical characteristics. Origin is Ceylon Sri Lanka, a provenance known for producing moonstones with fine adularescent quality and clean material.

From a lapidary and gemological perspective the cut and finish demonstrate attention to the anisotropic layering that produces adularescence, the schiller effect arising from alternating lamellae of orthoclase and albite within the feldspar matrix. The oval outline and cabochon dome are calibrated to the internal flow of these layers, producing a coherent band of light that travels across the dome as the gem is tilted, an indicator of well oriented cleavage planes and careful preforming. The dimensions and carat weight make this piece suitable for a variety of settings, from a minimal bezel to a custom halo design, with the cabochon profile allowing secure mounting while preserving the optical centerpiece. For designers and collectors seeking natural material with documented attributes, The Natural Gemstone Company provides this moonstone as an unenhanced specimen, ready for immediate setting or inclusion in a curated collection. The combination of near colorless body, excellent polish, intentional cabochon geometry, and Sri Lankan origin positions this stone as a technically refined choice for clients who value precise cutting, reliable provenance, and natural optical phenomena.