0.92 Ct. Bi Color / Parti Sapphire from Ceylon (Sri Lanka)

This transparent 0.92 carat round bi color parti sapphire measures 6.10 by 6.01 by 4.00 millimeters, and presents a classic round brilliant faceted cut. The cutting style emphasizes a brilliant facet arrangement, producing strong light return across the crown and pavilion. Clarity has been evaluated as very slightly included at eye level, indicating minor inclusions that do not detract from the gem face up under normal viewing. Color intensity is described as intense, with the stone exhibiting a distinct parti coloration, and polish has been graded as excellent. The sapphire has been heat treated, a common and stable enhancement, and its material origin is Ceylon, Sri Lanka, a provenance noted for producing high quality corundum with attractive color and transparency.

The facet proportions of this round brilliant are engineered to maximize scintillation and overall brilliance. With a depth of approximately four millimeters relative to an average diameter of just over six millimeters, the stone offers a slightly deeper pavilion, which contributes to pronounced internal reflections and a lively face up appearance. The parti or bi color character presents as a clear transition between warm yellow tones and cooler bluish green tones, varying with viewing angle and light direction. This pleochroic behavior is typical of parti sapphires, and the brilliant faceting pattern enhances the interplay of hues, allowing the pavilion to act as a mirror for the cooler tones while the crown returns the warmer yellow tones to the viewer. The excellent polish ensures crisp facet junctions and minimal surface disturbance to light passage, supporting both intense color saturation and strong brilliance.

Durability is a critical consideration for any gem intended for daily wear, and this sapphire performs well on that measure. As corundum, sapphire ranks nine on the Mohs hardness scale, second only to diamond, which provides strong resistance to scratching during routine wear. The excellent polish and the robustness of the corundum crystal structure deliver durable facet edges and a stable surface finish. The round shape and well proportioned girdle contribute to resistance against mechanical impact, and the absence of significant surface reaching fractures or cavities reduces the risk of damage from knocks or contact with hard surfaces. Heat treatment applied to this sapphire is a conventional and stable enhancement which does not compromise the fundamental hardness or structural integrity, and is considered permanent under normal wearing and care conditions.

Care recommendations and setting considerations are guided by the gemological attributes of the stone. Routine cleaning with warm soapy water and a soft brush will maintain luster and remove surface oils and residues. Ultrasonic or steam cleaning is generally acceptable for well healed, heat treated corundum, though if a piece contains significant reaching inclusions or fissures, a conservative approach using manual cleaning is advisable. For daily wear jewelry applications such as rings or bracelets, protective settings are recommended, for example bezel settings or secure prong configurations which reduce exposure of the girdle and pavilion to sharp impacts. The round brilliant outline of this sapphire adapts readily to a variety of mounting styles, providing both aesthetic flexibility and practical protection for everyday wear.

The Natural Sapphire Company provides this sapphire with full disclosure of its characteristics, including weight, dimensions, clarity description, color intensity, and treatment status, together with provenance from Ceylon, Sri Lanka. The combination of intense parti coloration, transparent body, very slightly included clarity at eye level, and an excellent polish makes this 0.92 carat round sapphire a technically quality gem suitable for fine jewelry. Its hardness and overall structural soundness support daily wear, while the heat treatment is a stable, industry standard process that enhances visual qualities without reducing durability. For clients seeking a distinctive bi color sapphire with strong optical performance and reliable wear characteristics, this stone represents a measured selection grounded in gemological specifications and practical considerations.