2.58 Ct. Bluish Green Sapphire from Ceylon (Sri Lanka)

This transparent 2.58 carat oval shape bluish green sapphire measures 9.41 x 7.07 x 4.78 mm, and presents a disciplined approach to faceting and proportioning that prioritizes optical performance. The cutting style is faceted with a mixed brilliant scheme, combining a brilliant facet arrangement on the crown with precision step facets on the pavilion to balance scintillation and color saturation. The crown exhibits precisely angled star and bezel facets converging to a well proportioned table, while the pavilion steps are calibrated to redirect light toward the eye for maximum return. Symmetry is exacting, facet junctions are crisp, and the girdle is consistent in thickness to enable secure setting without sacrificing light transmission. The polish is graded excellent, resulting in minimal surface diffusion and optimal mirror like facet reflections, and the clarity assessment at eye level is very very slightly included, indicating inclusions are minute and do not materially interrupt visual transparency or internal light pathways. Enhancement is none, the stone is untreated, and the origin is Ceylon Sri Lanka, a provenance that is recognized for producing transparent sapphires with lively tone and refined chroma.

Color characteristics are technical and revealing for the informed buyer. The hue registers as bluish green with an intense color intensity, expressing a deep saturation while maintaining lively chromaticity across the crown. This color balance is a function of trace element chemistry primarily dominated by iron based absorptions that shift the blue toward green when present in specific concentrations. Pleochroism is present as typical for corundum, with orthogonal viewing angles yielding discernible shifts between blue dominant and green dominant faces, a quality that the mixed brilliant cut has been engineered to harmonize rather than mute. The cutter has oriented the long axis of the oval to align with the most favorable pleochroic plane, enhancing perceived color depth when worn in face up orientation. Color zoning is negligible and well diffused, indicating even distribution of chromophores, and combined with the high degree of transparency this sapphire displays excellent body tone without appearing muddy under standard daylight. Optical phenomena such as brilliance, contrast scintillation, and small scale dispersion are all pronounced due to the precision of the facet set and the excellent polish, delivering a lively, lively face up appearance under a broad range of lighting conditions from daylight to incandescent.

From an investment and craftsmanship perspective this sapphire embodies attributes that appeal to collectors and connoisseurs who seek quantifiable qualities. Untreated Ceylon sapphires of this size and clarity are less common than treated material, and the absence of enhancement preserves natural crystalline and chromophore characteristics that are sought after in the secondary market. The mixed brilliant cutting strategy enhances face up color saturation while preserving internal clarity, a technical compromise executed to maximize optical return while respecting the integrity of the rough. Craftsmanship markers to note are proportional pavilion depth, exact crown angles, tight facet symmetry, and the excellent polish grade, each of which contributes to market performance and long term desirability. When set in jewelry, the stable corundum structure and consistent girdle thickness facilitate secure mounting with minimal risk during setting, and the calibrated measurements 9.41 x 7.07 x 4.78 mm make this stone adaptable to a wide range of classic and contemporary settings. Ownership through The Natural Sapphire Company includes access to our gemological expertise and provenance knowledge, and represents an acquisition of both material value and artisanal skill. For the technical buyer evaluating long term value the combination of natural origin, no enhancement, precise mixed brilliant faceting, high polish, and a high apparent clarity at eye level positions this 2.58 carat oval bluish green Ceylon sapphire as an investment in enduring beauty and masterful lapidary technique.