1.58 Ct. Greenish Yellow Cabochon Chrysoberyl from Ceylon (Sri Lanka)

This listing describes a single translucent 1.58 carat oval greenish yellow chrysoberyl, dimensions 6.26 by 6.34 by 4.13 millimeters, cut as a cabochon with a smoothly domed profile and precise oval outline. The cabochon profile has been executed to preserve a balanced dome height and pavilion thickness, which optimizes internal light return and supports the visible linear reflection that is evident when the stone is viewed under raking light. Clarity is graded as very slightly included when evaluated at eye level, the inclusions are microscopic to minor and do not materially disrupt the overall translucency. Color is medium intensity in the greenish yellow range, presenting a soft yet distinct hue that is consistent across the table and crown curve. The surface finish is an excellent polish, executed to a mirror smoothness that enhances luster and provides clean light reflection across the dome. There has been no enhancement applied to this material, and provenance is Ceylon Sri Lanka, a source long prized for producing chrysoberyl that combines fine color with stable material properties. For reference chrysoberyl is a durable gem, with Mohs hardness approximately 8.5, specific gravity typically around 3.73 to 3.78, and refractive indices in the range of about 1.746 to 1.755, properties that make it highly suitable for daily wear in secure settings.

From a lapidary and optical standpoint this cabochon has been worked to emphasize its natural internal structures and optical response. The cutter oriented the dome axis parallel to the principal inclusion orientation to create a sharp linear reflection when illuminated from the side, a technique that requires control of dome curvature and strict maintenance of symmetry to avoid diffusion of the band. The translucent bodycolor allows light to penetrate and scatter, producing a soft glow that complements the linear bright band, while the excellent polish minimizes surface scatter and maximizes specular reflection. The very slightly included clarity grade indicates the presence of natural growth features or fine mineral inclusions that act as light deflectors, and these features are an asset rather than a detraction because they contribute to the gemological fingerprint that tells the story of natural formation. The cutting process for cabochon chrysoberyl demands a careful balance between dome height, table width, and pavilion thickness, to both protect the stone in setting and to maximize the interplay between transmitted and reflected light. At 6.26 by 6.34 millimeters and 4.13 millimeters deep, this stone retains enough depth to show internal character and enough table area to be displayed effectively in bezel and closed backed settings.

When comparing this natural Ceylon chrysoberyl to lab grown alternatives it is useful to consider formation, inclusion patterning, and long term desirability. Lab grown chrysoberyl can mimic color and refractive properties reliably, and it often presents with exceptionally uniform color and near absence of natural inclusions. Those characteristics can be advantageous for certain commercial applications, however they also remove the diagnostic natural inclusion structures and growth zoning that collectors and connoisseurs prize. Natural stones from Sri Lanka display microstructural complexity, subtle color zoning, and inclusion types that reflect growth under varying pressure and temperature regimes, attributes that provide verifiable provenance and a unique identity for each specimen. From a valuation standpoint natural, untreated stones typically retain higher market preference among collectors and can accrue greater long term value due to rarity and the narrative of geological origin. In addition the absence of enhancements in this particular gem removes concerns associated with fillers, dyeing, and heat treatments that can affect care protocols and long term stability. The Natural Gemstone Company sources and documents natural origin material, and we emphasize transparency regarding treatments and origins because those factors are central to durability and collector appeal.

For practical use this chrysoberyl cabochon is best set in a protective bezel or low gallery setting that shields the dome from knocks while showing the stone face prominently. Given the inherent hardness of chrysoberyl it is robust for rings and daily wear provided the setting mitigates edge impacts. Cleaning with warm soapy water and a soft brush will maintain polish and clarity, ultrasonic cleaning is generally acceptable for durable, untreated chrysoberyl although caution is advised if inclusions suggest structural planes, therefore hand cleaning is the conservative choice for routine maintenance. The unique combination of precise cabochon cutting, medium greenish yellow color, very slightly included clarity at eye level, excellent polish, absence of enhancement, and Sri Lankan origin makes this 1.58 carat oval chrysoberyl a technically interesting and collectible gem, available through The Natural Gemstone Company for clients who value natural provenance, lapidary craftsmanship, and the optical subtleties that distinguish natural chrysoberyl from synthetic alternatives.