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

This 1.09 carat cushion shape bi color parti sapphire presents a clear, well proportioned form with dimensions of 5.89 x 5.23 x 4.05 mm, and a faceted cutting style executed as a mixed brilliant cut. The cutter has employed a balanced crown and pavilion geometry with precise facet junctions that maximize internal reflection and external scintillation. The geometric faceting pattern is arranged to promote controlled light return across the table and crown, producing pronounced light play as viewing angle and lighting conditions change. Clarity is graded as very slightly included when evaluated at eye level, and polish is graded excellent, allowing unobstructed transmission of light through the stone and preserving the integrity of the facet surfaces. Color is classified in laboratory reports as bi color with medium color intensity, and the stone displays distinct zones of contrasting hue that are emphasized by the mixed brilliant facet layout. The sapphire has been heat treated, and origin is documented as Ceylon, Sri Lanka, with certification supplied by Other.

From a design and specification perspective the cushion outline and mixed brilliant cutting style together yield both depth and breadth of optical performance. The relatively shallow pavilion depth of 4.05 mm and the calibrated table proportions contribute to a balance between brilliance and color saturation, enabling both the lighter and darker color zones to register without undue windowing or dead spots. The geometric faceting maximizes the interaction of light with the sapphire by directing return light toward the viewer while creating dispersion from the pavilion facets, producing a dynamic visual effect that varies with orientation. Measurements and the very slightly included clarity suggest standard mounting tolerances for common jewelry settings while maintaining protective depth under bezel or prong work. This description and the accompanying certification are provided by The Natural Sapphire Company for accurate assessment by gem setters and clients seeking technical clarity, material provenance, and cutting quality.