Natural Moonstone · 4.540 ct · Pear Cabochon · Blue Adularescence

This natural Moonstone is an attractive 4.540 carat pear-shaped cabochon displaying a distinct blue adularescence across its milky white to near-clear body. As the gemstone is moved under direct light, a soft blue sheen appears to travel across the surface, creating the optical phenomenon for which fine Moonstone is especially valued.

Measuring approximately 13.0 × 9.0 × 5.1 mm, the stone has a substantial size and a well-proportioned pear form suitable for a pendant, ring or bespoke jewellery design. The smoothly polished cabochon surface allows the internal structure and blue optical effect to remain clearly visible.

The body colour varies naturally from milky white to more transparent areas. Internal veils, fractures and other natural characteristics are visible within the gemstone and contribute to its individual appearance. These features interact with the light and give the stone additional depth rather than a completely uniform appearance.

Its most distinctive feature is the blue adularescence, visible as a cool blue glow that shifts in intensity and position depending on the angle of illumination and observation. This phenomenon is characteristic of Moonstone and results from light interacting with its internal feldspar structure.

The gemstone is presented as natural and unheated, preserving the appearance and internal characteristics created during its geological formation. Each viewing angle reveals a slightly different combination of transparency, internal texture and blue sheen, making this a distinctive individual Moonstone specimen.