13.37 Ct. Cabochon Tiger's Eye from Ceylon (Sri Lanka)

This 13.37 carat cushion shaped golden brown tiger eye from Ceylon measures 16.20 by 11.47 by 7.13 millimeters, and it is presented as a classic cabochon with an excellent polish, no enhancements, and an opaque clarity that is characteristic of high quality tiger eye specimens. The cabochon form emphasizes the stone body color, the layered chatoyant silk, and the smooth, reflective surface without faceting. The cushion outline is slightly softened by the dome, which helps to center the eye and to present a balanced, symmetrical appearance when set in jewelry. The origin of Ceylon lends provenance and trade relevance, as Sri Lankan mines have produced material with warm golden brown tones and a strong fibrous structure. The overall finish and the lack of treatments are details that will matter to a discerning buyer, because they confirm that the optical effects you are paying for are natural, stable, and captured through considered lapidary work by skilled cutters.

The cabochon cut is integral to how this tiger eye performs optically, because the cutting style directs light across parallel fibrous inclusions that create chatoyancy, and because the dome shape allows the light to be concentrated into a sharp, moving band. In tiger eye the effect arises from the reflection of light from thin, fibrous aggregates of quartz that have pseudomorphically replaced crocidolite, and when a cabochon is oriented correctly the curvature of the dome aligns with those fibers to focus and intensify the band. A flat or poorly oriented cut would disperse the reflection and produce a weak or indistinct band, while an expertly proportioned cabochon like this one brings a bright and mobile cat eye that appears to glide across the surface as the angle of viewing or the light source changes. The excellent polish is equally important, because a high luster surface reduces scattering and preserves the integrity of the cat eye line, while also providing uniform color saturation across the golden brown spectrum. The result is an easily observable, repeatable optical display that an educated buyer can rely upon in different lighting conditions.

From a grading and valuation perspective, tiger eye is assessed on parameters that differ from transparent gemstones, and buyers seeking technical assurance will appreciate the clear statements about weight, dimensions, origin, and lack of enhancement that accompany this piece. Clarity in opaque gems such as tiger eye is best described by the evenness of color, the definition of the chatoyant band, and the presence or absence of fractures or pits that might influence polishing and setting. This example shows a clean, well consolidated surface with minimal interruptions to the silk alignment, which supports both aesthetic value and practical durability for use in rings, pendants, or cufflinks. Given the material hardness near seven on the Mohs scale, reasonable wear and routine care will keep the polish intact, and the stone is robust enough for daily wear when set properly. For collectors and connoisseurs the provenance of Ceylon material may add historical and market interest, while the natural, untreated status and the precise cabochon work make this specimen a solid choice for those who value authenticity and optical performance. The Natural Gemstone Company stands behind the description and offers this cushion cabochon as a representative example of fine golden brown tiger eye, useful for both jewelry applications and curated collections.