3.05 Ct. Cabochon Chrysoberyl from Ceylon (Sri Lanka)

This chrysoberyl is a technically precise specimen, weighing 3.05 carats with dimensions of 7.61 x 7.82 x 5.34 mm, presented in a round cabochon profile that emphasizes translucency and surface luster. The hue registers as brownish yellow with intense color depth, and the body color is evenly distributed across the dome with subtle zoning at oblique angles. Clarity has been assessed at eye level as very slightly included, with inclusions that do not compromise the overall transparency or the visual continuity of the surface. The cabochon was cut to a balanced dome, with the height and curvature selected to maximize the optical response of the material, and the girdle and base were finished to consistent tolerances to facilitate secure mounting in a wide range of jewellery settings. There has been no enhancement applied to this stone, and the polish quality is excellent, resulting in a reflective, satiny surface that reveals internal features without glare or excessive surface scattering.

From a gemological standpoint, chrysoberyl is valued for its combination of hardness, refractive properties, and interaction with light, and this piece exemplifies those qualities. The species crystallizes as beryllium aluminium oxide, with a refractive index typically in the range expected for gem quality chrysoberyl, and a Mohs hardness near 8.5 which contributes to its durability for everyday wear. The translucent nature of the piece allows controlled transmission of light into the interior, producing a soft luminous effect rather than strong faceted brilliancy. In cabochon form, chrysoberyl can display chatoyancy when oriented with parallel fibrous or acicular inclusions, and the surgical selection of the rough during preform stage aimed to orient any internal structure to enhance a linear eye when viewed under directional lighting. The intense brownish yellow color of this specimen is consistent with well colored Ceylon material, and the combination of hue, value, and saturation gives a warm, honeyed presence that reads both classic and technically interesting to connoisseurs.

The fabrication process for this cabochon was executed with attention to lapidary engineering and material conservation. The rough was examined with loupe and microscope to determine inclusion orientation, cleavage tendencies if present, and optimal preform geometry. The cutter established an axis that preserved weight while orienting the dome to centralize any linear internal features. Preforming employed coarse diamond laps to establish the round outline and dome profile, followed by progressively finer grits to remove subsurface damage and micro fractures, and to bring the surface into prepolish uniformity. Final polishing utilized diamond compounds on a hard lap to match the high hardness of chrysoberyl, with incremental inspection to ensure that the polish reached a mirror satiny finish across the convex surface. Attention was paid to edge beveling at the junction of dome and girdle, to remove potential stress risers and to ensure consistent seating in mountings. The resulting cabochon maintains 3.05 carats, a pragmatic balance between weight retention and optical optimisation, with excellent polish that allows both the intense body color and internal features to be appreciated without distraction.

The journey of this chrysoberyl from Ceylon alluvial deposit to market was managed under protocols that prioritize provenance, transparency, and technical quality control, and The Natural Gemstone Company supervised each stage. Artisanal miners recovered the rough from river gravels and weathered gem gravels typical of Sri Lankan primary and secondary occurrences, and the initial sorting separated material for cabochon suitability based on translucency and internal structure. The selected rough underwent careful sawing and mapping, then proceeded to experienced lapidaries who executed the cutting plan described above. Post fabrication, the finished cabochon was measured, weighed, and subject to a detailed visual and microscopic evaluation to confirm the very slightly included clarity grade, the absence of enhancements, and the declared dimensions and weight. High resolution documentation was prepared, and secure logistics were arranged for delivery to our clientele. For the technical buyer, this chrysoberyl represents a fully characterized specimen with documented origin, exacting lapidary technique, and physical attributes that make it an excellent candidate for precision jewellery settings where durability, controlled translucency, and a warm, intense color are desired. The Natural Gemstone Company stands behind the reporting of measurements, origin, and treatment status, and we invite buyers who appreciate technical detail and material integrity to consider this finely executed Ceylon chrysoberyl.