0.95 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This transparent 0.95 carat round blue sapphire is presented with precise gemological parameters, measuring 6.04 x 6.01 x 3.72 mm, and displaying a near round outline indicative of excellent cutting symmetry. The diamond equivalent weight to diameter relationship is consistent with a dense corundum, and the calculated depth is 61.7 percent, a proportion that balances face up presence with efficient light return. Cut as a faceted gem with a mixed brilliant design, this sapphire combines a well proportioned brilliant style crown with a pavilion modified to enhance light performance. The origin is Ceylon, Sri Lanka, and the stone has been heat treated, a stable enhancement commonly used to intensify hue and clarify internal features without compromising structural integrity. Polishing is graded excellent, and the clarity is eye clean when evaluated at normal viewing distance, attributes that allow the stone to present its color and faceting architecture with minimal distraction.

The mixed brilliant faceting on this round sapphire is executed to marry scintillation with depth. The crown appears to present kite and star facets arranged to create a structured contrast pattern across the table, while the pavilion facets are calibrated to redirect returning light through the crown for optimal brilliance. The near equality of the two diameter measurements indicates minimal off roundness, which preserves the radial symmetry that is essential to producing uniform facet reflections. With excellent polish, facet junctions are precise and crisp, enabling sharp light return and controlled windowing. The result is a balanced interplay between flash and dispersion, where measured facet geometry yields lively scintillation without excessive light leakage.

Color attributes are central to this stone, exhibiting an intense color intensity that reads as a saturated, vivid blue. In the context of Ceylon provenance, the hue aligns with the classic island profile, where tone and saturation produce a lively, electric blue that maintains depth without appearing overly dark. The eye clean clarity grade is an important complement to this color, because unobstructed internal passage of light permits the full saturation to be perceived evenly across the table and crown facets. Heat treatment has been applied to optimize both hue and clarity, and in practice this treatment enhances transparency and color homogeneity while retaining the mineralogical character of corundum. The combination of intense saturation and high clarity means that the stone presents consistent color face up, with minimal impact from internal features, and allows the mixed brilliant faceting to translate that color into dynamic visual depth.

From a practical and aesthetic perspective this specimen demonstrates how a high quality execution elevates appearance from every angle. The transparent body and eye clean clarity permit light to traverse the stone and interact with precisely cut facet planes, producing strong face up brilliance, crisp facet contrasts, and lively scintillation under movement. The 61.7 percent depth is sufficient to create depth when viewed table up, while avoiding the muted appearance associated with excessive pavilion depth. The excellent polish ensures that surface reflections are mirror like, reinforcing the perceived clarity and saturation. When set, the stone will display consistent performance in varied lighting, revealing subtle pleochroic shifts typical of corundum as the viewer changes angle, and maintaining a strong, even blue that reads as both vivid and refined. As presented by The Natural Sapphire Company, this 0.95 carat Ceylon sapphire is a technically accomplished gem, where proportion, cut, clarity, and finish have been harmonized to maximize optical return and to present a visually flawless face up appearance.