2.55 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This exceptional transparent 2.55 carat blue sapphire presents itself in an asscher octagon shape, with precise dimensions of 6.81 by 6.56 by 5.67 mm, and an asscher cut executed to balance weight retention with optical performance. The asscher cut in this stone features the hallmark concentric step facets on both crown and pavilion, a broad table facet and truncated corners that create an organized return of light with controlled scintillation rather than high dispersion flashes. The result is a measured, architectural brilliance that emphasizes depth of color, with an intense color intensity that sits in the desirable range between vivid and deep, exhibiting a rich Ceylon blue that shifts subtly with viewing angle. Clarity has been evaluated as slightly included at eye level, the internal characteristics appearing as fine silk and isolated pinpoint crystals that do not disrupt transparency, and the overall finish is characterized by an excellent polish that produces crisp facet junctions and clean specular reflections across the table and step facets. This sapphire is untreated, no enhancements, and its optical behavior is consistent with natural Sri Lankan corundum, showing strong color transmission, modest pleochroism and a pleasing balance between body color and light return.

The journey of this sapphire from mine to market reflects deliberate choices at every stage to preserve its natural integrity and to optimize its final presentation. The rough was sourced from artisanal and small scale operations in established Ceylon mining districts, where prospectors recover corundum from alluvial and weathered bedrock deposits. From extraction the rough went through an initial sorting and preforming process, where experienced graders selected material with stable, saturated color and minimal fracture risk, then allocated it for an asscher faceting plan. The cutter chose proportions that conserved weight while aligning the rough crystal axes to minimize extinction and to maintain the intense color when viewed through the large table. The step faceting sequence required careful control of facet angles, facet symmetry, and pavilion depth to avoid windowing, and to ensure that the blue remained concentrated rather than washed out. After precision faceting, the sapphire received sequential abrasives and final polishing with diamond compounds, producing the excellent polish noted in the grading. The Natural Sapphire Company supervised each stage, documenting provenance and confirming that the stone remained unheated and free of diffusion or filler treatments, and the finished gem underwent a final gemological assessment for weight, exact dimensions, color evaluation and clarity grading before being made available to collectors and designers.

For the technically minded buyer and the jeweler planning a bespoke setting, this stone offers a distinct set of design opportunities and handling considerations. The asscher octagon silhouette responds well to settings that allow the broad table to show, such as low four prong or four corner bezel designs that secure the truncated corners and protect the pavilion. Because the cut emphasizes color over high brilliance, pairing the sapphire with white metal mounts like platinum or palladium will enhance perceived saturation, while a contrasting warm metal can add visual warmth and a classical character. The slightly included clarity grade indicates that cleaning protocols should favor gentle mechanical methods, warm soapy water and a soft brush, avoiding aggressive thermal shocks and unnecessary ultrasonic use until the finished mounting is inspected by a professional. For display and appraisal, the gemometer of value lies in its combination of weight, untreated origin from Ceylon Sri Lanka, intense natural color and a precise asscher faceting style executed to excellent polish. The Natural Sapphire Company stands behind the documented chain of custody and is available to provide additional high resolution imagery, fitting recommendations and bespoke setting services, ensuring that this 2.55 carat asscher octagon blue sapphire transitions from a remarkable gem to a considered, enduring jewel.