0.97 Ct. Bluish Green Sapphire from Tanzania

This 0.97 carat oval bluish green sapphire from Tanzania is a transparent, faceted gemstone that measures 6.08 millimeters by 5.05 millimeters by 3.69 millimeters. The stone is cut in a mixed brilliant style, combining a brilliant facet pattern with a modified pavilion architecture. The color is intense, and the clarity is graded as very slightly included when evaluated at eye level. The surface shows an excellent polish, and there has been no enhancement applied to the material. This description reflects the natural character of the stone as presented by The Natural Sapphire Company, and it is intended to provide a clear technical understanding of the gem and how its cutting and finish interact with its innate optical properties.

The mixed brilliant cut employed for this oval sapphire is an intentional compromise between scintillation and color distribution. The brilliant crown facets act to fragment incident light into multiple small flashes, creating dynamic scintillation as the gem or the viewer moves. The modified pavilion complements this by controlling the angles at which light is returned through the crown, promoting effective light return while avoiding excessive leakage that would diminish brightness. In an oval outline, the elongated shape alters the path of light compared with round cuts, producing a characteristic interplay of broader flashes along the length of the stone and finer scintillation toward the ends. The result is a balance in which the mixed brilliant scheme enhances perceived vitality and liveliness, while the oval geometry broadens the visual spread of color and light.

Proportions and polish are critical to how a mixed brilliant oval sapphire performs, and this stone benefits from an attentive execution in both respects. The table and crown relationships are set to maximize internal reflection, allowing the intense bluish green hue to remain evenly distributed across the face up view without forming dark zones or overly bright windows. The 3.69 millimeter depth provides sufficient pavilion height to direct light back through the crown, and the excellent polish ensures minimal surface diffusion, so that light strikes the facets cleanly and is thrown back in crisp flashes. Clarity described as very slightly included at eye level indicates that any internal features are minor and do not materially interrupt the passage of light through the stone. Because there has been no enhancement, the optical behavior observed is an accurate representation of the natural material, and the combination of clarity, polish, and cut produces a transparent appearance with consistent brilliance and contrast.

From a practical perspective the mixed brilliant oval form presents predictable and versatile performance in jewelry. The faceting strategy enhances both brilliance and scintillation, so the stone will display lively light performance in settings that afford unobstructed viewing of the crown. The oval outline often yields a slightly larger face up area for a given weight relative to round stones, and this improves perceived presence without sacrificing optical performance. The intense natural color from Tanzania is supported by the mixed brilliant proportions so that tone and saturation read strongly under a range of viewing conditions, from daylight to warm artificial light. The Natural Sapphire Company provides this sapphire as a naturally occurring, unenhanced example of skilled cutting meeting favorable material quality, and the gem is suitable for applications where a balance of color depth, sparkle, and clarity is required.