1.01 Ct. Bi Color / Parti Sapphire from Australia

This transparent 1.01 carat bi color parti sapphire presents as an expertly executed faceted emerald cut, with exact dimensions of 6.73 by 5.42 by 2.80 millimeters, yielding an overall depth of approximately 46.1 percent, a proportion that is well suited to step cut geometry and controlled light return. The pavilion and crown were cut to emphasize broad step facets and a generous table, creating defined facet planes that both reveal and flatten the stone's color zoning, and the result is a clean, architectural facet pattern with crisp facet junctions and excellent symmetry. Clarity is graded eye clean evaluated at eye level, allowing the stone to display uninterrupted transparency and internal light transmission, and the polish is rated excellent, giving facet surfaces mirror like finish and ensuring minimal diffusion of light across the crown and pavilion. The color presentation is medium intensity parti coloration, with a distinct transition between green and blue zones along the length axis, and the cutting strategy preserves this bi color character by aligning facet geometry with the principal color planes rather than attempting to homogenize the hue.

This Australian origin sapphire has been heat treated as a stable enhancement, a standard industry practice that has been fully disclosed, and the treatment enhances the saturation while maintaining natural zonal character and the gemological integrity typical of Australian sapphires. The gem sits at a size and proportion that translates exceptionally well between casual and formal applications, its emerald cut profile lending modern architectural restraint for everyday wear, while the clean step facets and medium color intensity provide sufficient presence for evening and formal settings. For mounting, settings that showcase the elongated table and color transition, such as a low bezel for daily wear or a four prong or channel montage for dress pieces, will maximize both protection and visual impact. At The Natural Sapphire Company we document origin, treatment, and exact proportions, and this piece is presented as an example of precision cutting, transparent clarity, and controlled color zoning, qualities sought by connoisseurs who appreciate technical detail and versatile wearability.