3.19 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This description presents a C.Dunaigre certified vivid blue cornflower blue sapphire, a transparent heart shape weighing 3.19 carats, supplied by The Natural Sapphire Company. The gem measures 8.77 by 9.49 by 5.32 millimeters, a slightly elongated heart that offers an elegant silhouette for fine jewelry. Origin is Ceylon Sri Lanka, a provenance prized for producing saturated cornflower tones with lively responsiveness to light. Certification by C.Dunaigre confirms the identity, origin assessment, and enhancement disclosure, providing third party verification that supports both aesthetic and investment considerations. The heart outline has been executed with careful attention to bilateral symmetry, producing well matched lobes and a crisp cleft at the top, while the lower point is preserved and well proportioned for secure setting.

The cutting style is a mixed brilliant, a deliberate choice to balance color saturation with dynamic scintillation. The crown exhibits a traditional array of star and kite facets transitioning into a faceted bezel that optimizes light entry. The pavilion uses modified brilliant facets to return light efficiently, promoting strong contrast and lively dispersion across the pavilion facets. Depth is 5.32 millimeters, which equates to approximately fifty eight percent relative to the average of the length and width, a proportion that favors balanced color and light return in corundum. Facet junctions are crisp and well aligned, and overall symmetry supports predictable optical performance regardless of mounting. The polish is graded excellent, ensuring minimal surface disturbance to light paths and enhancing visual clarity and brilliance.

Color evaluation identifies this stone as vivid in intensity, the classic cornflower blue hue associated with top quality Ceylon sapphires, with a pure blue body color that leans slightly toward the cool end of the spectrum without appearing inky. Under rotation the stone displays attractive color uniformity and pleasant trichroic tendencies, showing consistent blue with subtle shifts toward violet in certain facets, a characteristic often seen in Sri Lankan material. Clarity is graded as eye clean, evaluated at eye level, with no inclusions that interfere with the gem aesthetic in normal viewing. The stone has been heat treated, a stable enhancement that improves color saturation and clarity while being fully disclosed and documented on the certification. Heat treatment in sapphire is industry standard when disclosed, and in this example, it has been applied in a controlled manner to enhance the already fine material from Ceylon.

For a high end gemstone collection this heart shape vivid blue sapphire represents an exceptional acquisition, combining desirable color, reliable origin, and technical execution. The 3.19 carat weight positions the stone well for bespoke engagement rings, pendants, or luxury cluster pieces, where the heart silhouette can be showcased with either a delicate prong setting to maximize light exposure or a protective bezel that secures the cleft and the lower point. Due to its excellent polish and symmetry, the stone will integrate predictably into precision mountings and benefit from high quality metal work that accentuates the cornflower blue tone. Collectors seeking verified provenance and documented treatment will appreciate the C.Dunaigre certification and the provenance from Ceylon, and when acquired from The Natural Sapphire Company this sapphire comes with the assurance of professional grading, secure handling, and clear documentation, making it an exemplary addition to a curated collection.