2.37 Ct. Yellowish Green Cabochon Chrysoberyl from Ceylon (Sri Lanka)

This listing describes a single, transparent chrysoberyl from Ceylon Sri Lanka, weighing 2.37 carats, in a round outline cabochon form, with overall dimensions of 8.80 by 8.24 by 3.38 millimeters. The cutting style is a traditional domed cabochon, executed to preserve maximum weight and to emphasize internal depth and color uniformity. The cabochon dome height relative to the mean diameter is approximately 40 percent, a proportion selected to optimize internal light retention while avoiding excessive windowing. Clarity is graded as slightly included at eye level, indicating the presence of small natural inclusions that do not substantially interrupt transparency, and color intensity is medium, appearing as a yellowish green hue under standard daylight conditions. The surface finish is an excellent polish, indicating careful lap work and final finishing, and there has been no enhancement applied to this material. The Natural Gemstone Company presents this stone as a natural, untreated example of Ceylon chrysoberyl.

From an optical and material perspective this chrysoberyl exhibits the characteristic combination of high refractive response and notable surface luster associated with the species. Chrysoberyl shows an adamantine to strong vitreous luster, and even in a cabochon form the high refractive index promotes crisp surface reflections and a sense of inner brilliance. The internal light behavior in this specimen is influenced by the cabochon profile, the medium color saturation, and the slightly included clarity. In practice the dome concentrates transmitted light toward the viewer, producing a lively field of transmitted color and a controlled amount of internal reflection. The excellent polish minimizes surface scattering and maximizes specular reflection, so the gem presents a bright, glossy appearance rather than a dull or frosted look.

When comparing the perceived brilliance of this cabochon chrysoberyl to more commonly encountered faceted gemstones it is important to distinguish the mechanisms that produce visual sparkle. Faceted diamonds achieve brilliance through high dispersion and a faceting scheme that produces strong contrast and scintillation. Faceted corundums such as sapphire rely on precision pavilion angles to generate return of light and play of light across multiple facets. By contrast a cabochon does not present facets for scintillation, so it will not display the same sparkling fire that a diamond or a well cut sapphire will produce. However chrysoberyl compensates through higher refractive index and superior surface luster relative to many common green gemstones, including peridot and many green quartz varieties, producing a denser and more vivid apparent depth. Compared to emerald, this chrysoberyl offers greater hardness and durability, permitting a higher degree of polish that translates to crisper reflections and longer lasting finish. Compared to peridot, which often shows a softer vitreous luster, this chrysoberyl shows a more adamantine sheen that enhances perceived brightness even without facet generated fire. The net effect is a gemstone that stands out for its concentrated, glass like glow and for the way light is collected and presented by the domed profile.

Craftsmanship and practical considerations make this piece well suited to a variety of settings. The cabochon dome proportion and excellent polish were chosen to maximize color saturation and to present inclusions in a way that reads as character rather than flaw. The slightly included clarity grade at eye level indicates that the stone retains strong transparency and will perform well in ring or pendant applications where the dome faces the viewer. The hardness of chrysoberyl, approximately 8.5 on the Mohs scale, ensures good resistance to abrasion and retention of polish over time, making this an attractive option for daily wear settings. Because the material is unenhanced and originates from Ceylon Sri Lanka, collectors and connoisseurs who prioritize natural provenance and stability will find this example particularly appealing. The Natural Gemstone Company can provide viewing under controlled lighting and can advise on mounting orientation to optimize the visual balance of the dome, and we can supply certification and high resolution imagery upon request.