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

This listing presents one transparent 3.16 carat round shape bi color parti sapphire, dimensions 7.83 x 7.83 x 6.24 mm, sourced from Ceylon Sri Lanka, offered by The Natural Sapphire Company. The gem is faceted and cut to a mixed brilliant configuration, combining a precisely faceted crown with an optimized pavilion geometry to balance brilliance and color transmission. Clarity is graded as very slightly included when evaluated at eye level, indicating minimal internal features that do not detract from overall transparency. Color intensity is medium, delivering a clear and even saturation that allows both the cool blue and subtle green yellow tones typical of parti sapphires to be visible depending on viewing angle and light source. The polish is excellent, resulting in crisp facet junctions and high surface luster. There is no enhancement, which preserves the natural crystal structure and color distribution, and increases collector and connoisseur appeal.

From a cutting and faceting perspective this round sapphire exhibits the attributes of a disciplined mixed brilliant approach. The crown is arranged to favor smaller star and bezel facets that create controlled scintillation and contribute to a bright table face. The pavilion is engineered to return light efficiently to the viewer while maintaining enough depth to display the stone s bi color zoning, reducing windowing and promoting lively contrast. The cutting retains the round outline with uniform girdle thickness to facilitate secure setting and consistent light performance around the circumference. Facet alignment and symmetry are executed to minimize optical asymmetries, and the excellent polish ensures that facet planes act as effective mirrors, enhancing both brilliance and fire. The result is a gem that reads as both lively and stable in appearance, with a facet architecture that supports versatility in jewelry design.

The bi color or parti character of this sapphire is a defining optical trait and is presented with technical clarity. Medium color intensity means the saturation is sufficient to read distinctly as sapphire while remaining light enough to permit internal reflections and dispersion to be seen easily. The parti nature manifests as discrete color zones and pleochroic shifts when observed from different directions, a property of corundum that skilled cutters can leverage to produce dynamic visual effects. In practical terms the viewer will notice a subtle shift between cooler blue tones and warmer green yellow notes as the stone is moved, which can be used as a design feature in multi tone settings. The very slightly included clarity grade denotes natural inclusions that are limited in size and number, typically not impacting structural integrity or light performance at a normal viewing distance. These natural features are consistent with untreated Ceylon material and are often regarded as evidence of authenticity by experienced buyers.

Functionally and aesthetically this sapphire is highly versatile, appropriate for both casual daily wear and formal statement pieces. As corundum it has a hardness of nine on the Mohs scale, ensuring strong resistance to abrasion and suitability for rings and bracelets as well as pendants and earrings. The mixed brilliant cut supports a broad range of mounting styles, working equally well in low profile bezels that emphasize color continuity, and in prong settings that maximize brilliance and allow the parti color play to be admired from multiple angles. For formal applications the stone s balanced optical performance and excellent polish create a refined sparkle under artificial lighting, while in casual contexts the medium color intensity and natural bi color effect lend a distinctive, wearable character. Because the sapphire is unenhanced, it is particularly desirable for collectors and clients seeking natural material with documented provenance, and The Natural Sapphire Company can assist with bespoke setting options and technical recommendations to showcase the stone s optical qualities.