1.56 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

One beautiful translucent 1.56 carat pear shape blue flash moonstone, dimensions 7.61 x 6.20 x 4.46 mm, cabochon cut, clarity grade very very slightly included evaluated at eye level, light color intensity, excellent polish, no enhancement, origin Ceylon Sri Lanka. This gem exhibits classic adularescence with a concentrated blue flash that appears to float just beneath the surface when illuminated, a visual effect that defines premium moonstone material. The cut is a high domed pear cabochon, crafted to orient the internal lamellar structure of sodium rich feldspar to the plane of the dome, maximizing the coherent scattering that produces the blue sheen. Opal type, White Opal, is noted for comparison within our collection, as White Opal represents an entirely different hydrated silica system, and its presence in our offering highlights our ability to source and present complementary white body gemstones along with fine feldspar specimens. The Natural Gemstone Company presents this specimen with full disclosure, the stone arriving unenhanced and exhibiting natural character and stability as provided by careful lapidary work in Sri Lanka.

From a cutting and finish perspective, the cabochon style used for this pear shape moonstone is purposeful and technically informed, the dome height of 4.46 mm delivering an ideal table to depth ratio for a 7.61 by 6.20 mm outline. The high dome allows adularescence to develop over a broader surface area, while maintaining control over light leakage that can dilute the blue flash in overly low mounts. The apex is centered along the long axis of the pear, ensuring symmetrical return of light during viewings from typical orientations, and the junction between the dome and shoulders is gently rounded to avoid abrupt light scattering that would fragment the sheen. Polish quality is excellent, indicating final lap and compound choices that removed fine abrasions without introducing surface haze, a key factor for translucents where surface finish directly influences perceived depth of the adularescence. Clarity at very very slightly included evaluated at eye level confirms that internal particulate inclusions are minimal, they act as placers of contrast rather than as obtrusive inclusions, and they can enhance the character of the stone without diminishing its luminous effect.

The provenance of this moonstone, Ceylon Sri Lanka, contributes materially to its valuation and desirability, Sri Lankan moonstones are historically prized for their clean body tones and vivid blue adularescence, the geological environment of Ceylon yields feldspar with a fine, well ordered lamellar microstructure that is ideal for producing a concentrated blue flash. Sri Lanka has longstanding lapidary traditions and many local workshops possess generational knowledge of orientation cutting for schiller effects, this expertise yields cabochons that reveal the optimum face up appearance with minimal waste. In market context, Ceylon provenance often commands a premium because collectors and connoisseurs recognize the consistent optical quality and the ethical traceability offered by established Sri Lankan supply chains. For designers and private clients seeking a statement gem, a Ceylon blue flash moonstone of this size and finish offers both visual performance and provenance based assurance, The Natural Gemstone Company documents origin when available, and this stone is accompanied by our internal evaluation noting absence of enhancement and the clarity and polish grades described.

For practical considerations and buyer guidance, this 1.56 carat pear cabochon integrates into jewelry designs where the integrity of the dome is supported, recommended settings include full bezel designs or low profile half bezel cups with a seat to support the undercut, prong work can be employed for aesthetic openness, but it should include a secure cradle to prevent edge stress. Hardness of moonstone sits around 6 to 6.5 on the Mohs scale, and handling guidelines include avoiding ultrasonic cleaners and steam treatments, cleaning with warm soapy water and a soft brush preserves polish and the natural sheen. The lack of enhancement means the stone will age naturally and can be trusted for long term stability when used in daily wear designs with appropriate protective settings. For collectors comparing related materials, White Opal from our catalog offers a different visual language, it typically presents a white body tone with variable play of color or opalescence and requires different cutting and setting strategies due to its lower specific gravity and hydrated structure. If you require additional technical data such as refractive index readings, specific gravity measurements, or microscopic inclusion imagery, The Natural Gemstone Company can provide laboratory grade documentation and imaging upon request, our team is available to advise on mounting options that preserve the adularescence and to discuss provenance documentation and recommended care.