1.81 Ct. Cabochon Chrysoberyl from Tanzania

This specimen is a translucent 1.81 carat oval yellow chrysoberyl, precise dimensions 6.57 by 6.19 by 4.40 millimeters, presented as a high-domed cabochon. The cutter has retained a near-square oval ratio of 1.06 length to width to preserve face-up coverage while maintaining a substantial dome height that emphasizes internal color and light diffusion. Clarity is graded very very slightly included at eye level, indicating that the stone appears essentially clean to unaided inspection with only minimal, well-distributed internal features visible under magnification. Color intensity is described as medium light, a balanced grade that delivers clear, vibrant yellow saturation without tipping into overly dark tones that can obscure the characteristic chrysoberyl brilliance. The piece is unenhanced, natural material from Tanzania, and it carries an excellent polish that yields an adamantine, subtly satiny surface on the cabochon dome. These attributes combine to make a gem with both collector-grade integrity and practical suitability for wearable jewelry.

From an optical and gemological perspective this chrysoberyl benefits from the species high refractive index and robust hardness. Chrysoberyl typically displays an RI in the range of approximately 1.746 to 1.755, producing strong surface brightness even in a cabochon form where faceted return is absent. The cabochon cut deliberately sacrifices faceted brilliance in favor of a continuous dome that optimizes transmission, internal scattering, and the perception of color. Given the translucent nature of this material, light entering the dome is internally scattered and partially transmitted, producing an even, glowing face-up color that reads as vivid under a variety of lighting conditions. The medium light color intensity is ideally suited to this effect, allowing the yellow to remain saturated and lively without becoming visually heavy. Clarity described as very very slightly included at eye level tells a buyer that internal features are minor and do not interrupt the smooth color plane, and the excellent polish ensures minimal surface diffusion and maximum optical clarity from typical viewing distances.

The cabochon fabrication reflects careful lapidary technique geared to maximize aesthetic return and structural stability. Preforming was executed to align the strongest color plane with the table, minimizing visible zoning and orienting any minor inclusions off-axis so they are less apparent face-up. The 4.40 millimeter dome height is a deliberate proportion that intensifies perceived color depth and produces an appealing play of light across the arc of the dome. Sanding progression through increasingly fine abrasives and final polishing with a high-grade cerium oxide or diamond paste on a leather or felt lap produced the excellent polish noted in the grading. Edge rounding and symmetrical termination at the girdle demonstrate controlled lap work that facilitates secure setting and reduces chipping risk. The cutter’s decision to maintain 1.81 carats at the stated dimensions indicates efficient weight retention from the rough and a priority on preserving natural color concentration rather than excessive faceting or reduction, a consideration prized by connoisseurs seeking natural character and provenance.

In application, the vibrant yellow of this Tanzanian chrysoberyl will stand out in any jewelry setting due to its compact, saturated face-up appearance and adamantine surface response. In warm yellow or rose gold settings the stone’s mid-light yellow will harmonize and deepen, producing a rich, integrated field of color, while white metals such as platinum or white gold will create a crisp contrast that makes the yellow appear cleaner and more luminous. The cabochon form is especially well suited to bezel settings, where the metal rim protects the substantial dome and presents the stone as a continuous, sculptural focal point; however skilled prong or half-bezel designs can also showcase the dome while allowing more light to interact with the stone’s sides. For designs requiring accent stones, low-dispersion diamonds or small white sapphires provide a bright border that enhances perceived saturation and draws the eye to the chrysoberyl’s core tone. Given the species hardness of roughly 8.5 on the Mohs scale and the secure profile produced by the cutter, this gem is appropriate for rings, pendants, and high-wear pieces when set with thoughtful protective design.

The Natural Gemstone Company offers this natural, untreated Tanzanian chrysoberyl with full disclosure of its physical and optical characteristics, providing buyers with the technical detail necessary to evaluate suitability for bespoke settings or investment purposes. The combination of 1.81 carats, finely proportioned oval dimensions, translucent medium light yellow saturation, very very slightly included clarity at eye level, and excellent polish constitutes a gem that is both technically refined and visually striking. For clients seeking a yellow chrysoberyl that will read vibrantly on the finger or as the centerpiece of a pendant, this stone’s balance of dome height, color intensity, and polish ensures it will occupy its intended setting with authority. Please contact The Natural Gemstone Company for high-resolution images from multiple lighting angles, subscribing to our full provenance and cutting report if you desire further technical verification or bespoke design consultation.