2.07 Ct.Tw.Total Carat Weight Cobalt Spinel Pair from Tanzania

The beautiful, transparent pair of cobalt spinels offered by The Natural Gemstone Company weigh 0.99 carats and 1.08 carats respectively, and present as oval shape blue cobalt spinels with dimensions of 6.64 by 5.48 by 3.75 mm and 6.72 by 5.45 by 3.66 mm. Each stone is fashioned in a mixed brilliant cut to balance color saturation and light return, and the excellent polish enhances surface reflectivity and crisp facet contrast. Clarity is graded very very slightly included, evaluated at eye level, which indicates exceptional transparency and only minimal internal features that do not detract from visual performance in typical jewelry settings. Color intensity is vivid, showing the deep saturated blue that is characteristic of cobalt bearing spinel, and importantly, no enhancement has been applied so the color and clarity are entirely natural. The matching weights and closely aligned dimensions produce a harmonious pair that is ideal for earrings or for matched designs where symmetry and consistent optical behavior matter.

These cobalt spinels are from Tanzania, a locality noted for producing fine spinel material, and The Natural Gemstone Company sources them through suppliers who follow eco friendly mining practices. Those practices include water management and recycling, progressive land rehabilitation, responsible waste handling, and fair labor policies that support local communities and improve traceability. We maintain provenance records and can provide documentation on origin and treatment to support transparent purchasing decisions. From a gemological perspective, spinel rates about 8 on the Mohs hardness scale, offering excellent resistance to scratching for everyday wear, and the combination of vivid natural color, VVS level clarity at eye level, and expert mixed brilliant cutting gives these gems both strong aesthetic appeal and investment qualities that an educated buyer will appreciate. For clients seeking untreated, responsibly sourced gemstones with verifiable provenance, this pair represents an excellent balance of beauty, durability, and ethical sourcing, and The Natural Gemstone Company is prepared to assist with certification options and custom setting advice.