0.57 Ct. Greenish Blue Sapphire from Ceylon (Sri Lanka)

This transparent 0.57 carat cushion shape greenish blue sapphire presents precise proportions, measuring 5.19 x 4.18 x 2.86 mm, cut in a mixed brilliant style that pairs a responsibly faceted brilliant crown with a faceted step pavilion to balance brilliance and color saturation. The mixed brilliant arrangement concentrates crown facets to maximize scintillation while preserving a well proportioned pavilion that returns color to the table, a particularly effective approach for medium color intensity sapphires. Clarity is graded slightly included at eye level, the polish is excellent, and the stone has been heat treated to stabilize and enhance its greenish blue tone. Origin is Ceylon, Sri Lanka, and The Natural Sapphire Company presents this gem with full disclosure of its enhancement history and measured specifications for informed selection.

The unmistakable signature of this sapphire derives from its internal inclusion ensemble, which reads as a microscopic topography under magnification and as a subtle texture to the naked eye. Fine oriented silk needles are present, arranged along crystallographic directions that create a soft, velvety diffusion of light across the pavilion and lower crown, this silk producing a slightly softened window that deepens the face up color without obstructing clarity. Scattered minute crystal inclusions appear as reflective points when the stone is tilted, contributing to micro scintillation that punctuates the broader flashes from the mixed brilliant cutting. There are also small healed fissures that manifest as pale, feather like veils, their healed nature evident in the continuity of crystal planes and the way they refract light rather than scatter it chaotically. Together these features form a reproducible internal fingerprint, one that is consistent with classic Ceylon sapphire formation and that provides both visual character and natural provenance, while maintaining overall transparency and light return.

From a setting and design perspective the gem performs as an excellent centerpiece where controlled light entry is desired, the mixed brilliant cut supporting lively crown sparkle and deep, saturated face up color at medium intensity. The slightly included clarity is best showcased in open settings that allow top and side light to interact with the oriented silk and micro crystals, producing dynamic color shifts between green and blue. As with all sapphires from The Natural Sapphire Company, this stone is accompanied by full measurements and a transparent origin and treatment statement, enabling confident selection by connoisseurs who value both technical excellence and the unique inclusion signature that confirms natural origin.