0.97 Ct. Bluish Green Sapphire from Tanzania

This exquisite, transparent 0.97 carat oval bluish green sapphire is an exceptional example of natural corundum, offered by The Natural Sapphire Company. The gem measures approximately 6.50 by 4.98 by 3.37 millimeters, a proportion that balances presence and wearability for both fine jewelry and collector settings. The color presents as a balanced bluish green with medium color intensity, a tone that reads elegantly under varied lighting and complements a wide range of metals and design motifs. No enhancement has been applied to this stone, a characteristic that significantly increases appeal to discerning buyers who prioritize natural origin and stability. The combination of sub one carat weight and refined oval dimensions makes this sapphire versatile for center settings in rings, pendants, and bespoke designs, while its transparency lends a lively and modern look that performs well in both vintage inspired and contemporary settings.

The mixed brilliant cut employed on this stone is a deliberate choice to maximize light performance while retaining weight and shape. The mixed brilliant style combines a faceted crown with a modified pavilion, creating a balance between table transparency and scintillation from the pavilion facets. In practical terms, this means strong return of white light from the table and crown, alongside lively flashes and pinpoint scintillation from the brilliant facets. The excellent polish reported for this sapphire indicates precise lapidary work, with facet junctions that enable crisp light reflections and minimal surface haze. The oval silhouette further enhances perceived size and creates an elegant elongation when set, making the gem a natural focal point in any composition. When evaluated under standard lighting, the cut reveals consistent symmetry and faceting that accentuate the bluish green tone rather than dispersing it, which is essential for a stone intended to be the centerpiece of a collection.

Clarity is graded as very very slightly included, evaluated at eye level, which communicates that the stone appears essentially clean to the naked eye, with only minute inclusions visible under magnification. For an educated buyer, this clarity grade means that the visual performance is free from distraction, allowing color and brilliance to dominate the viewing experience. In corundum, small mineral inclusions or silk can often act to enhance overall body tone without compromising face up appeal, and in this specimen the inclusions are negligible and do not interfere with light transmission. The bluish green color arises from trace elements, including iron combined with minor amounts of other elements, producing a balanced teal to greenish blue that is both subtle and complex. Sapphires from Tanzania are known for producing distinctive and varied hues, and this example demonstrates the countrys ability to yield stones with refined medium intensity and attractive transparency. The stone may display slight pleochroism, showing different intensities of blue and green when viewed from different angles, which adds depth and dynamic color interest when set and worn.

From a value and care perspective, this unenhanced, eye clean sapphire represents a compelling proposition for collectors and connoisseurs who prioritize natural material and excellent workmanship. The lack of heat or other enhancements preserves not only the gemologic integrity but also long term stability, which is a critical consideration for pieces intended for daily wear. With a hardness of 9 on the Mohs scale, sapphire is highly durable, suitable for rings and everyday jewelry, and the absence of treatments makes standard ultrasonic cleaning acceptable, although professional cleaning and routine inspection are recommended to maintain settings and polish. The Natural Sapphire Company stands behind full disclosure and transparent treatment reporting, and we provide high resolution imagery and additional documentation upon request. For clients interested in commissioning a setting, pairing this stone with white diamond accents or a simple bezel can both protect the gem and highlight its unique bluish green character, ensuring that the sapphire performs as the centerpiece of any collection or custom project. Please contact The Natural Sapphire Company for further gemological details, independent laboratory reports if desired, and bespoke design options.