1.87 Ct. Greenish Yellow Sapphire from Ceylon (Sri Lanka)

This transparent greenish yellow sapphire weighs 1.87 carats and is fashioned in a classic emerald cut, with measured dimensions of 8.79 by 5.55 by 3.62 mm, an intense color intensity, and an excellent polish. The clarity is graded very slightly included evaluated at eye level, and the stone is confirmed as no enhancement from its origin in Ceylon, Sri Lanka. The emerald cut emphasizes clean lines and broad facet planes, providing a controlled window into the stone, and the combination of weight and proportions produces an elegant balance between face up presence and depth. The clean step facets of this cut allow internal features to be read with clarity, making the stone particularly suitable for settings that favor architectural clarity and subtle color expression. The Natural Sapphire Company stands behind the natural origin and untreated condition of this sapphire.

The most compelling aspect of this sapphire is the internal signature formed by its inclusions, which read as a coherent and unmistakable fingerprint when examined with magnification and in hand. Fine oriented silk, composed of microscopic rutile needles, appears as delicate parallel filaments that trace the crystal growth direction and impart a soft internal texture that modulates the stone s brilliance. Small tabular crystal inclusions occur as isolated reflective points and short prismatic crystals, producing selective light return that can be seen as tiny scintillation nodes across the pavilion. In addition there are a few elongated negative crystal cavities that present faint voided windows within the crystal lattice, and these features often host minute two phase inclusions that contain both liquid and gas. Collectively these elements create an internal landscape of linear growth lines, isolated reflective crystals, and occasional healed planes, a pattern that is characteristic of sapphires formed in the Ceylon gemstone environment.

These inclusions are integral to the identity and evaluation of the piece, and they contribute to its clarity grade without compromising transparency or structural integrity. Although visible under close inspection, the silk is sufficiently fine that the stone remains transparent and lively face up, and the isolated crystals do not form fractures that would affect durability. The presence of oriented silk and distinct growth zoning is consistent with an untreated sapphire, and the distribution and morphology of the inclusions are among the factors gemologists use to corroborate Ceylon provenance. From a light performance perspective, the inclusions introduce subtle variations in color saturation across the step facets, resulting in a living color that shifts with facet orientation and viewing angle. These natural internal markers contribute to the gem s provenance story and to its aesthetic character, offering a degree of individuality that cannot be reproduced by synthetic or heavily treated material.

When considering mounting and long term care, the sapphire s emerald cut and internal signature suggest design choices that reveal rather than conceal. A setting that allows light to enter the pavilion and view the table unobstructed will best display the internal pattern, and a low profile prong or four corner mounting will retain the geometric integrity of the step facets while protecting the corners. Bezel settings will offer greater protection but may restrict the viewing window and mute the subtle play created by the internal inclusions. Routine cleaning with warm soapy water and a soft brush is appropriate, avoiding harsh chemicals or ultrasonic machines unless advised following a professional inspection. The Natural Sapphire Company documents the untreated origin and the gemological observations that define this sapphire s signature, and we can provide detailed imagery and a full report on request. For collectors and designers who value natural character and traceable origin, this emerald cut greenish yellow sapphire presents a distinct and verifiable internal fingerprint that affirms both its natural history and its visual appeal.