0.83 Ct. Alexandrite from Ceylon (Sri Lanka)

This alexandrite presents as a translucent, cushion shaped gem weighing 0.83 carats, measuring 5.21 by 4.55 by 3.95 millimeters, a profile that balances visual presence with wearable proportions. The shape is a classic rounded cushion, chosen to maximize the interplay between color and light in a material that displays pleochroic tendencies, here registering a greenish to brownish transition under different lighting conditions. The cutting style is a mixed brilliant configuration, which pairs a brilliant facet arrangement on the crown with a tailored mix of pavilion facets designed to control light return and color saturation. At this size, under magnification the stone displays even facet distribution and tight facet junctions, indicators of deliberate lapidary control, and at normal viewing distance it is graded eye clean, meaning no inclusions are visible at eye level, which is a significant attribute for alexandrite material of this carat class. Color intensity is evaluated as intense, and the polish is graded excellent, delivering crisp facet reflections and strong contrast that enhance the perceptible depth of tone and the apparent color shift. There has been no enhancement to this stone, the material is entirely natural, and the recorded origin is Ceylon, Sri Lanka, a source known for producing alexandrite specimens with distinctive optical character, which contributes to the gemological narrative and provenance that many discerning buyers require.

From a technical perspective the mixed brilliant cut employed here is optimized for the specific pleochroic and dichroic behavior of alexandrite, combining a flat to slightly domed table with a crown facet layout that increases dispersion while preserving color purity. The pavilion incorporates both modified brilliant facets and selective step areas, an approach that confines light paths to reinforce the greenish to brownish color planes rather than washing the piece out or creating undesirable color mixing. Facet angles are executed to tight tolerances, producing efficient light return at common viewing angles while avoiding strong windowing or extinction, and the symmetry is controlled to ensure consistent optical performance across the stone face. The excellent polish indicates that the lapidary applied thorough prepolish and final polish passes, resulting in micro facet edges that are sharp and reflective, which is particularly important in gems with strong color, because surface finish directly affects perceived saturation and the clarity of color change. The eye clean clarity grade was determined at standard observation distance, which in practical terms means the stone will present as visually pure in mounted jewelry, making it suitable for settings that emphasize the stone rather than conceal flaws. The absence of any enhancement, such as heat treatment or diffusion, preserves the unaltered gem chemistry, and this natural state is increasingly valued in the marketplace.

In comparative terms this specimen is rare both for its size and for its color profile. Alexandrite occurrences with a near one carat weight that are eye clean and display intense color are uncommon, and when combined with a distinctive greenish to brownish shift from Ceylon the overall rarity increases further, because more typical classic alexandrite color changes trend between green and red or green and purplish red, depending on origin. The greenish brown range represented here occupies a narrower subset of known alexandrite material, and collectors and connoisseurs recognize that such tonalities from Ceylon are not frequently encountered in the market at this quality level. The combination of cushion geometry, mixed brilliant cutting, intense natural color, excellent polish, and no enhancement creates a package that is both technically refined and collectible. The Natural Gemstone Company documents origin and treatment status for every piece, and this alexandrite is presented with that provenance in mind, reflecting our emphasis on transparency and gemological integrity. For clients who prioritize lapidary technique, optical behavior, and natural state over mass produced uniformity, this 0.83 carat Ceylon alexandrite represents a rare opportunity to acquire a technically accomplished and naturally remarkable stone.