1.72 Ct. Greenish Yellow Cabochon Chrysoberyl from Tanzania

This 1.72 carat oval chrysoberyl from Tanzania, offered by The Natural Gemstone Company, presents a refined technical profile that will appeal to connoisseurs and gem setters alike. The gem measures 6.79 x 5.91 x 4.52 mm, and its cabochon cut emphasizes a smoothly domed profile with uniform curvature across the axis, ideal for bezel or low prong mounting. The greenish yellow hue reads as light in color intensity, and translucency allows for a soft internal glow without the visual opacity that can obscure internal features. Clarity was graded as very slightly included at eye level, and the cutter has achieved an excellent polish, leaving the dome free of lap marks and producing a crisp, even reflection across the surface. There has been no enhancement to alter color or clarity, which preserves the natural state and trade value of the material. The gem exhibits the inherent toughness of chrysoberyl, with a hardness of 8.5 on the Mohs scale, making it suitable for regular wear when properly set, while the stable crystal chemistry of chrysoberyl reduces susceptibility to chemical attack or fading.

Inclusions within this cabochon are small but instructive, and they serve as unique identifiers that add provenance and character. At eye level the stone shows minute acicular and platelet inclusions that are largely concentrated toward one edge of the pavilion, visible as delicate linear features and tiny mineral aggregates that register as slightly darker areas against the pale body color. These inclusions are consistent with natural growth zoning and trapped mineral or fluid phases in chrysoberyl from Tanzanian deposits, and their orientation contributes to the internal light scattering that gives the dome its silk like sheen. Because they are internal and do not reach the surface, they do not compromise durability, and their positions and morphologies make the gem traceable under magnification, a practical advantage for certification, appraisal, and long term identification. The combination of very slight inclusions and a finely executed cabochon cut yields a stone that balances transparency and internal texture, offering both aesthetic subtlety and verifiable natural origin.

From a design and optical standpoint this oval cabochon offers controlled light behavior that a technical buyer will appreciate. The dome height and symmetry were maintained to center the line of reflection when viewed face up, producing a linear highlight that tracks across the face as the stone is moved, indicative of oriented microstructures within the host crystal. Under directional lighting the stone displays a delicate, silky banding effect without strong chatoyancy, which allows jewelers to predict how the piece will read in different mounting geometries. For secure settings, a full bezel will protect the perimeter and present the dome as a single luminous plane, while a partial bezel with fine millgrain work will allow side light to enhance the internal glow. The light greenish yellow color pairs well with warm and neutral metal alloys, and because the material has not been treated, it will respond predictably to standard polishing and setting procedures. At The Natural Gemstone Company we emphasize documentation, and we can provide detailed imaging and magnified inclusion maps to assist with certification and insurance. This chrysoberyl is a technically interesting specimen, combining reliable physical properties, natural inclusion signatures, and meticulous cutting that together create a distinct and wearable gemstone for collectors and designers.