13.33 Ct. Cabochon Chrysoberyl from Ceylon (Sri Lanka)

This listing describes a semi translucent chrysoberyl that is AIGS certified and presented by The Natural Gemstone Company. The stone is identified on the laboratory report as Yellowish Green under the lab color classification. The precise weight is 13.33 carats and the piece is fashioned in a round cabochon form. The recorded dimensions are 11.97 by 11.98 by 9.33 millimeters. The origin reported on the certificate is Ceylon Sri Lanka, and the report confirms that the material is natural with no enhancement. These baseline details are provided exactly as stated on the AIGS document and serve as the primary reference for this specific specimen.

The color of the gem is described as greenish yellow with a medium color intensity that balances freshness and saturation, producing a lively but still natural tone. The semi translucent body allows light to interact with the interior, creating an internal glow that emphasizes the greenish yellow hue under direct and diffused lighting. The cabochon shape and generous dome height emphasize the stone s optical behavior, producing a distinct, well centered chatoyant band that runs across the dome. This cat s eye effect is sharp and continuous across viewing angles, indicating careful alignment of the cutting to the internal silk inclusions responsible for chatoyancy. The overall visual presentation is clean and focused, with color distribution even across the surface and a pronounced optical line that is a defining characteristic of this piece.

Clarity is graded as very slightly included when evaluated at eye level, which denotes that minor inclusions are present but are not readily apparent without deliberate inspection. These internal features are consistent with chatoyant chrysoberyl and in many cases contribute constructively to the formation and definition of the eye. The polish is assessed as excellent, with a smooth and reflective surface finish that enhances both the color depth and the sharpness of the chatoyant band. The AIGS certificate explicitly notes no treatments or enhancements, confirming that the appearance is entirely natural and the result of the gem s inherent properties and the cutter s skill. Given chrysoberyl s known material properties and a hardness that supports everyday wear, this cabochon is a durable choice for mounting, and the cabochon profile is particularly well suited to bezel and secure prong settings that preserve the dome and protect the stone.

The accompanying certification from AIGS provides an independent verification of the stated attributes including weight, dimensions, color classification, clarity grade, polish, origin, and the absence of enhancement. Provenance from Ceylon Sri Lanka is notable because the region has a long history of producing fine chrysoberyl material, and the report gives buyers confidence in the gem s natural origin and characteristics. For practical care, routine cleaning with warm soapy water and a soft brush is recommended to preserve the surface polish and optical clarity, and caution is advised with thermal shocks and harsh chemicals to maintain the integrity of the cabochon. For further information, additional detailed images and a copy of the AIGS certificate are available upon request from The Natural Gemstone Company, and we can provide guidance on setting options that best showcase the stone s chatoyancy and color while ensuring secure and lasting use.