1.28 Ct. Cobalt Spinel from Tanzania

This transparent blue cobalt spinel presents as a fancy shape weighing 1.28 carats, with dimensions 8.21 x 4.80 x 3.88 mm. The gem is fashioned in a step cut that articulates broad parallel facets, emphasizing color depth and directional clarity. Clarity grade is very slightly included evaluated at eye level, indicating minute internal features that do not compromise visual transparency under normal viewing. Color intensity is medium intense, offering a saturated and even blue that remains consistent under varied lighting conditions. The polish is excellent, yielding clean facet junctions and a reflective surface that enhances the perceived depth and brilliance. Origin is Tanzania, a recognized source for high quality cobalt spinel material. No enhancement has been applied, the stone is untreated which preserves its natural character and supports collector confidence. The Natural Gemstone Company describes this piece with precise attention to its gemological attributes and finishing, making it suitable for secure settings and for inclusion in focused collections.

Owning this gemstone represents an investment in beauty and craftsmanship, where natural rarity and skilled cutting converge. Cobalt spinel is prized for its stable and vivid blue tones, along with sufficient toughness for long term wear when set and maintained properly. The step cut employed here is a deliberate craft decision, chosen to maximize apparent color saturation and to present a clean architectural aesthetic that complements refined metalwork. Because the gem is free of enhancements, its long term value is tied to inherent material quality, provenance, and the excellence of cut and polish rather than to laboratory treatments. For clients commissioning bespoke jewelry or building a collection of tangible assets, this spinel offers aesthetic presence, traceable origin, and meticulous finishing. With appropriate setting, routine care, and documented provenance provided by The Natural Gemstone Company, the gemstone can be preserved in condition and market standing, making it a considered and responsible choice for collectors and discerning jewelers.