1.56 Ct. Pink Sapphire from Ceylon (Sri Lanka)

This transparent 1.56 carat heart shape pink sapphire measures 6.86 x 7.88 x 4.02 mm, and it is cut in a faceted mixed brilliant style that balances scintillation and depth. The mixed brilliant design combines carefully proportioned brilliant facets on the crown with modified pavilion facets, producing a lively play of white light and colored flashes. Evaluated as eye clean at standard viewing distances, the stone presents no visible inclusions that would interrupt internal light pathways. The color intensity is classified as intense, yielding a saturated pink that maintains strong tone across the table and through the pavilion. The gem has received an excellent polish, which refines facet junctions and reduces surface light leakage. The sapphire has been heat treated, a stable and industry customary enhancement that improves color uniformity and clarity, and it originates from Ceylon Sri Lanka, a source known for well balanced pinks with crisp saturation. This description and all certification details are provided by The Natural Sapphire Company.

The exceptional sparkle of this sapphire arises from the intrinsic properties of corundum combined with precise cutting and finishing. Corundum has a relatively high refractive index, approximately 1.762 to 1.770, and a low but notable dispersion, around 0.018, which together produce a strong return of white light and subtle spectral flashes when facets are proportioned to optimal angles. The mixed brilliant cut enhances these effects by creating multiple internal reflection paths, allowing light to bounce between crown and pavilion facets before exiting through the table and crown. Because the stone is eye clean, there are minimal internal obstacles to scatter or absorb light, so brilliance and scintillation remain consistent across the heart shape. The excellent polish minimizes microscopic surface diffusion, preserving crisp facet junctions that contribute to sharp, lively sparkle. The heart silhouette requires precise symmetry, and when executed with accurate girdle thickness and pavilion depth, it concentrates light toward the viewer, enhancing perceived brightness and lively flashes. Heat treatment stabilizes chromophore distribution, deepening hue without compromising structural integrity, and the hardness of sapphire permits finely defined facets that sustain long term polish. The combination of material properties, cutting geometry, surface finish, and origin yields a pink sapphire with a sparkle and presence that is technically informed and visually distinguished, as represented by The Natural Sapphire Company.