1.31 Ct. Green Sapphire from Ceylon (Sri Lanka)

This 1.31 carat round green sapphire presents a clear and compelling combination of proportions and finish, with dimensions of 6.65 by 6.65 by 3.96 millimeters. The stone is fashioned in a mixed brilliant cut, a choice that balances table sparkle with depth of color, and it shows an excellent polish across all facets. Color is intense, a saturated green that reads lively under a range of lighting conditions, yet retains a natural depth that prevents it from appearing flat. Clarity is graded as very very slightly included, evaluated at eye level, which means the stone appears clean to the unaided eye, with inclusions that are minimal and subtly integrated into the overall visual experience. The sapphire is untreated, no enhancement, and its origin is Ceylon, Sri Lanka, provenance that correlates with the lively, bright green tones typical of high quality stones from that region.

The internal features of this sapphire constitute the unmistakable signature that distinguishes it from laboratory grown material and from sapphires of other locales. At gemological magnification the stone reveals a constellation of pinpoint crystals and minute negative crystals that sit within the crystal lattice, and these are accompanied by exceptionally fine silk filaments that run along growth planes. The silk is so delicate that it disperses light in a way that softens certain reflections, creating a subtle internal glow that enhances the sense of color saturation without obscuring brilliance. There are also tiny healed feathers and narrow, fingerprint like inclusions which show the sapphire underwent natural healing during its formation, a characteristic commonly associated with Sri Lankan deposits. These healed features are microscopic and do not compromise stability, they do however act as natural identifiers, because the pattern, orientation, and relative abundance of these inclusions form a reproducible internal fingerprint which experienced gemologists use to corroborate origin and confirm natural formation. The mixed brilliant cut further interacts with these inclusions, fragmenting and reflecting light so that the internal features become part of the stones personality rather than distracting elements.

From a practical and valuation perspective these inclusions add verifiable naturality and character while preserving optical performance and durability. The very very slightly included clarity at eye level ensures that the face up appearance is clean and vivid, and the minimal nature of the inclusions means that the sapphire will perform exceptionally well in most jewelry settings. The presence of fine silk and minute crystals can enhance the perception of depth, particularly when the pavilion and crown geometry are optimized, so the stone will show pleasing scintillation and flashes of light as it moves. Because the stone is untreated, no enhancement, its color and clarity are intrinsic, which is a decisive factor for collectors and for pieces where provenance is central to the piece narrative. For mounting and daily wear the healed inclusions and pinpoints do not present an elevated risk of fracture, yet conventional care for sapphires is advised, avoiding high impact knocks and extreme temperature shock. The provenance of Ceylon Sri Lanka, combined with the documented internal features and the absence of enhancement, aligns with our assessment protocols and supports full grading disclosure.

The Natural Sapphire Company stands by the scientific evaluation of every gemstone we present, and this green sapphire is accompanied by documentation that reflects its measured attributes and origin. The subtle inclusions, the fine silk network, and the minute crystal signatures are the natural hallmarks that underpin both identification and appreciation, they are the features that make this stone distinct rather than defective. For clients seeking a natural, untreated Ceylon sapphire with an intense green hue and a clean face up appearance, this 1.31 carat round mixed brilliant cut example offers a rare combination of aesthetic refinement and verifiable natural character. When set into a considered design, the internal architecture of this sapphire will continue to tell its geological story, visible to a trained eye and contributing to the overall allure of the finished jewel.