34.74 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

One translucent brown moonstone, oval shape, weighing 34.74 carats, is presented with precise dimensions of 30.02 x 18.35 x 8.73 millimeters, cabochon cut, clarity graded as eye clean at normal viewing distance, color intensity evaluated as medium intense, polish graded excellent, enhancement status none, origin Ceylon, Sri Lanka. The form is a classic high dome cabochon, the cutter retaining substantial vertical thickness to emphasize the stone body and internal light scattering, while preserving weight and structural integrity. The oval outline is well centered and proportioned, the length to width ratio approximately 1.64, a dimensional relationship that is favorable for balanced visual appearance in both horizontal and vertical settings. The neutral brown body color sits within the medium intensity range, permitting translucent light transmission while moderating any high contrast phenomena, a characteristic useful for designers seeking a warm, understated tone rather than strong spectral play.

From a lapidary and faceting perspective, this item is a cabochon rather than a faceted stone, which means the aesthetic emphasis is on dome geometry, surface finish, and internal phenomena rather than on faceted light return. The dome height of 8.73 millimeters is significant relative to the 30.02 millimeter length, providing a pronounced convexity that enhances the soft sheen typical of feldspathic moonstone varieties. The cutter has executed symmetrical curvature along both principal axes, with even pavilion thickness beneath the dome, reducing the risk of thin or brittle edges during setting. The excellent polish contributes to strong specular highlights on the dome, producing sharp reflected images when viewed under directional illumination, and the cabochon has been finished to eliminate lap marks and pits that would otherwise diffuse light and reduce visual clarity.

Optical and material characteristics are consistent with orthoclase and adularia type moonstones, where exsolved lamellar microstructures produce scattering effects commonly described as adularescence. In this specimen the brown body color and translucency yield a subdued adularescent effect, with internal scattering that appears as a soft glow rather than a distinct floating sheen. The eye clean clarity grade indicates the cutter oriented the stone to minimize the visibility of inclusions at typical viewing distances, thus optimizing the visual field for the internal light interaction. There are no enhancements, which confirms the natural diffusion and color are intrinsic to the crystal lattice and included mineralogy of this Ceylon origin piece. For durability considerations, standard feldspar behavior should be expected, with relative hardness suitable for rings and pendants when appropriate protective settings are used, and with sensitivity to sharp blows and harsh chemicals avoided during routine wear and maintenance.

For practical use in jewelry and for procurement decisions, the stout cabochon profile and the medium brown color make this moonstone highly adaptable to bezel set mountings, where the high dome and even thickness can be secured and protected, and to lower profile prong or gallery mounts when greater surface exposure is desired. The dimensions permit prominent placement as a statement center stone in cocktail rings, or as a principal focal in bespoke pendants and haute couture pieces, while the eye clean clarity allows close up viewing without distraction. The Natural Gemstone Company presents this item with full dimensional data and a clear enhancement declaration, and we can provide additional technical documentation on request, including high resolution imaging, lighting angle studies to document internal scattering, and sourcing provenance notes specific to the Sri Lankan deposit characteristics. Please contact the Natural Gemstone Company for condition reports, setting recommendations, and custom design consultation.