2.65 Ct. Greenish Blue Spinel from Tanzania

This transparent greenish blue spinel weighs 2.65 carats, and is cut in a cushion shape with dimensions of 9.11 by 7.14 by 4.85 mm. The cutting style is faceted, executed in a mixed brilliant configuration that balances pavilion brilliance with crown dispersive play, and the surface exhibits an excellent polish. The stone is graded as slightly included at eye level, a clarity characteristic that confirms natural formation and contributes to the gem character without compromising visual appeal. The color is described as intense, a saturated greenish blue that demonstrates good depth and evenness across the face of the gem, and the stone is free of any enhancement. Origin is Tanzania, a locality known for yielding high quality spinel specimens, and the combination of natural color, cut, and clarity yields a gem that presents both technical merit and market relevance.

The journey of this spinel begins in the highland alluvial deposits of Tanzania, where prospectors and artisanal teams work with methods adapted to both the terrain and to the preservation of the surrounding environment. Material is recovered through careful sifting and sieving of river gravels, with rough parcels then subject to initial sorting by color, crystal habit, and apparent clarity. The selected rough, including the piece that would become this 2.65 carat cushion, was transported to a regional lapidary hub where experienced cutters evaluate crystal orientation, inclusions, and potential yield. The decision to execute a mixed brilliant cut was made to optimize weight retention while enhancing light return, and the cutting sequence prioritized symmetry and facet junction integrity to achieve an excellent polish. Throughout cutting and pre polishing stages, the rough was handled with stringent measures for tracking and documentation, ensuring chain of custody from extraction to finished gem. Post cutting, the stone underwent standardized grading under controlled lighting, and the assessment of slightly included clarity at eye level reflects a professional visual inspection protocol, rather than a maximized clarity grade that would have necessitated significant weight loss through re cutting.

From grading the stone entered the commercial phase, where provenance, technical description, and photographic documentation were compiled for market presentation. The Natural Gemstone Company adheres to an internal quality assurance process that includes verification of origin, confirmation of untreated status, and the maintenance of measurement and weight records. Packaging and shipping followed secure and compliant procedures, with insurance and tracking applied to protect the gem during transit to clients or to affiliated bench workers for setting. The practical qualities of this spinel, namely its 2.65 carat weight, cushion form, intense greenish blue color, mixed brilliant faceting, and excellent polish, make it suitable for a range of applications from a single stone solitaire to a carefully conceived jewelry composition where color stability and durability are required. In providing this description The Natural Gemstone Company supplies both the technical data and the documented provenance that professionals and discerning buyers use to evaluate suitability for design and investment decisions, and the presented gem reflects a clear chain from responsible recovery in Tanzania to meticulous cutting and final market readiness.