3.67 Ct. Pink Sapphire from Ceylon (Sri Lanka)

This cushion shape pink sapphire weighs 3.67 carat, and measures 9.12 x 9.06 x 5.31 mm, yielding an approximate depth of 58.4 percent when calculated from the average diameter. The gem is executed in a mixed brilliant cut, a cutting style that combines a brilliant facet arrangement on the crown with a modified pavilion design to balance light return and color saturation. The crown facets are proportioned to maximize face up brilliance, while the pavilion’s modified brilliant facets deepen the pink tone by directing light through fuller table reflections. The cushion outline retains slightly rounded corners and a well centered table, contributing to even light distribution across the surface. The polish on facets is excellent, and the overall symmetry reads as precise under loupe inspection, which supports crisp facet junctions and uniform scintillation. These proportional attributes make the stone responsive under varied lighting environments, and they form the basis for its strong visual performance in calibrated jewellery settings.

Color is intense in concentration, presenting a vibrant pink that is characteristic of high grade Ceylon origin sapphires. The hue is dominantly pink with a slight cool undertone that keeps the saturation vivid without moving into overly dark tone, preserving lively dispersion and a pleasing vibrancy. The provenance is Ceylon Sri Lanka, a locality known for producing pink sapphires with bright, lively tones and strong clarity. This stone has been heat treated, a standard and stable enhancement for sapphire, employed to refine hue distribution and improve transparency. The treatment has been executed to preserve the natural color character while eliminating residual silk and minor color zoning, resulting in a uniformly intense face up appearance. Under daylight balanced illumination the stone displays a consistent strong pink, while under incandescent light the hue warms subtly, enhancing the stone’s appeal for jewellery that will be seen in mixed lighting conditions.

Clarity is graded as very very slightly included when evaluated at eye level, indicating that inclusions are minimal and do not detract from the gem’s overall visual integrity when mounted. The inclusions observed are small and well localized, typical of natural corundum, and they do not intersect key facet junctions, allowing light to flow and return efficiently. Combined with the excellent polish and the precise mixed brilliant facet arrangement, the sapphire exhibits lively brilliance and controlled dispersion. Optical properties typical of corundum such as a refractive index in the range of 1.762 to 1.770, and a birefringence of approximately 0.008, contribute to subtle doubling effects under high magnification but do not impair brightness to the naked eye. The high degree of transparency and the thoughtful cutting decisions result in strong scintillation and a pleasing balance between flash and overall glow, qualities that are particularly desirable to collectors and designers seeking a statement centre stone with technical merit.

Regarding durability, this pink sapphire is exceptionally well suited for daily wear in jewellery, and it meets the practical demands of rings, pendants, and everyday bracelets. As a corundum variety, sapphire rates nine on the Mohs hardness scale, offering superior resistance to scratching from common materials encountered in daily activities, and it exhibits very good toughness with no basal cleavage, which reduces susceptibility to cleavage related breakage. The mixed brilliant cut, combined with a modest depth, allows for secure mounting options, and we recommend settings that protect the girdle and corners such as four or six prong configurations with slightly rounded prongs, or a bezel or partial bezel for maximum protection. Routine care is uncomplicated, warm soapy water and a soft brush are effective for removing surface oils and residues, and professional ultrasonic cleaning is acceptable provided the mounting and any treatments are disclosed to the technician. At The Natural Sapphire Company we select stones with technical attributes that support longevity, and this 3.67 carat cushion pink sapphire from Ceylon, with its intense color, excellent polish, and stable heat treatment, represents a robust choice for a heirloom piece intended for frequent wear.