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

This 2.12 carat emerald cut bi color parti sapphire measures 8.68 x 6.37 x 3.94 mm, with a depth of approximately 45 percent, and presents as a transparent, faceted gemstone executed in a classical step cut. The cutting style emphasizes elongated emerald proportions, featuring a broad table, parallel step facets on the crown and pavilion, and clipped corners that control light return while preserving pronounced color zoning. Facet junctions are precise, and the overall symmetry supports a clean, linear play of light typical of well executed emerald cuts. Clarity is graded slightly included at eye level, with natural internal features that do not materially compromise transparency or structural integrity. Color intensity is medium, manifesting as a distinct parti distribution with cool blue tones concentrated along one axis and warm yellow green tones opposed along the perpendicular axis, a characteristic pleochroic expression for natural corundum from Ceylon Sri Lanka. The gem has been heat treated, a stable and standard enhancement to refine tone and clarity, and receives an excellent polish which maximizes facet crispness and optical contrast. As a corundum it benefits from a high hardness rated near 9 on the Mohs scale and a refractive index typical for sapphire approximately 1.76 to 1.77, making it suitable for precision settings while retaining wearability for regular use.

The combination of its technical proportions, parti coloration, and excellent finish yields notable versatility across casual and formal contexts. In informal settings the stone’s bi color nature creates dynamic visual interest when mounted in bezel or low profile prong settings for everyday wear, the step cut reducing outward vulnerability while the polished facets maintain a lively flash. For formal applications the elongated emerald cut complements solitaire and halo designs, the linear facet structure providing elegant light channels that read as sophisticated under event lighting. Choice of metal further tailors presentation, with yellow gold amplifying the warm phase and platinum or white gold accentuating the cooler blue phase, allowing designers to orient the stone to suit stylistic intent. Sourced from Ceylon Sri Lanka and offered by The Natural Sapphire Company, this sapphire pairs technical craftsmanship with natural character, appealing to discerning buyers who value precise geometry, measurable proportions, and the nuanced interplay of color that a parti sapphire uniquely provides.