2.97 Ct. Brownish Green Sapphire from Ceylon (Sri Lanka)

This Ceylon sapphire presented by The Natural Sapphire Company is a transparent, oval shape gem weighing 2.97 carat, with precise dimensions of 9.33 x 7.44 x 4.88 mm. The gem has been fashioned with a mixed brilliant cut, combining a faceted crown designed to maximize scintillation, with a pavilion geometry that enhances depth and color saturation. The material exhibits an intense color intensity described as brownish green, and an excellent polish that contributes to strong surface luster and clean facet junctions. Clarity has been evaluated as eye clean at typical viewing distance, indicating that there are no inclusions readily visible to the unaided eye, though microscopic features are present and contribute to the sapphire signature described below. The ruby and sapphire treatment history is documented as heat treated, a stable and widely accepted enhancement for sapphires from Sri Lanka, applied to optimize tone and saturation while preserving the stone structure and durability.

Under magnification this sapphire reveals a characteristic suite of internal features that together form an unmistakable signature. The most notable are very fine oriented silk inclusions, composed of thin needlelike minerals aligned along primary growth directions, which produce a very subtle velvety texture internally without compromising transparency. Interspersed among the silk are isolated microscopic mineral crystals that appear as pinpoint reflective accents when viewed under strong light. Growth zoning is also evident at higher magnification, presenting as faint, concentric color banding that follows the oval outline and emphasizes the stone depth. These elements interact with the mixed brilliant facet pattern to create internal light scattering that softens direct contrast and produces a layered visual depth, allowing the brown and green components of the color to shift slightly with viewing angle, while maintaining overall intensity. The combination of oriented silk, discrete crystal inclusions, and growth zoning is consistent with sapphires of Sri Lankan origin, and it provides a natural fingerprint that a trained gemologist can use, in conjunction with other data, to support origin attribution.

The presence of these inclusions has practical and aesthetic implications for use and care. Because the stone is eye clean, the inclusions do not detract from face up appearance, yet they contribute to a nuanced internal character that is prized by connoisseurs who value natural features that confirm origin and formation. From a setting perspective the mixed brilliant cut and the stone proportions will respond well to settings that allow light to enter through the pavilion and crown, such as open prong or bezel designs with a modest gallery, enabling the interplay of color and internal texture to be observed. Sapphire is a durable gem with Mohs hardness nine, making it suitable for everyday wear with routine care, which should consist of warm soapy water and a soft brush when necessary, and professional cleaning when desired. The fact that this sapphire has been heat treated is standard for material of this type, and the treatment is stable under normal wear. The Natural Sapphire Company can provide additional information and supporting documentation on request, including magnified images and laboratory reports, to assist in understanding the detailed internal character and verifying the attributes summarized here.