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

This specimen is a translucent, rough shape bi color parti sapphire weighing 15.46 carats, with dimensions of 22.35 x 12.30 x 8.19 mm. It has not been cut, the cutting style is not applicable, and it retains an excellent polish on its natural surfaces. The material displays medium color intensity, with attractive zoning that produces distinctly different color areas within a single crystal. Clarity is graded as very slightly included evaluated at eye level, which for an educated buyer indicates minor mineral inclusions or growth features that do not significantly detract from overall transparency or durability when viewed without magnification. Importantly this sapphire is unenhanced, no enhancement, and originates from Ceylon Sri Lanka, a classic and highly respected source known for producing sapphires with vibrant color and attractive crystal forms.

For connoisseurs and lapidaries alike this piece offers multiple avenues of value. As an untreated Ceylon parti sapphire it carries intrinsic rarity compared with heated or otherwise treated material, which often commands a premium among collectors and those seeking natural provenance. The rough shape and the noted excellent polish suggest the crystal has well preserved facets and terminations, improving the potential yield if one elects to faceting, or else providing an excellent natural specimen for display. Medium color intensity and translucency mean cutters can consider a variety of cuts to maximize color distribution, including mixed cut or step styles, while the very slightly included clarity evaluated at eye level suggests high potential for attractive finished stones with good transparency. From a practical perspective sapphire has excellent hardness and toughness, and an unenhanced piece from Ceylon is highly desirable for bespoke jewelry where origin and treatment status are important. This offering is presented by The Natural Sapphire Company, and we can provide informed guidance on cutting options, potential yields, and best uses for either creating a fine finished gem or retaining the crystal as a collector specimen.