0.67 Ct. Reddish Pink Spinel from Tanzania

This pear shaped reddish pink spinel weighs 0.67 carat, and measures 7.00 by 4.33 by 3.21 millimeters, presenting a well balanced silhouette and measurable presence for small to medium scale jewelry. The cutting style is faceted with a mixed brilliant cut, and the piece displays an excellent polish that enhances surface brightness and crown luster. Origin is Tanzania, and the stone has received no enhancement, a characteristic that assures collectors of natural color stability and untreated provenance. Optical and physical parameters relevant to the technical buyer include a refractive index approximately 1.718, a dispersion near 0.018, and a Mohs hardness around 8.0, attributes that explain the stone behavior under light and in practical wear situations. The Natural Gemstone Company documents this spinel as vivid in color intensity, and the vivid saturation is a primary factor in its visual appeal and market grade.

The cutter elected a mixed brilliant strategy to marry broad flash with lively scintillation across the pear outline, and the result is a controlled balance between contrast and fire. The crown exhibits well proportioned crown facets that break incoming light into controlled flashes, while the pavilion applies a modified brilliant facet geometry to yield depth and return. The table facet is proportioned to the overall dimensions, supporting a strong central window without sacrificing edge sparkle, and the overall symmetry supports even light distribution from tip to rounded base. Length to width ratio is approximately 1.62, delivering an elongated pear that sits comfortably in typical prong and bezel frameworks. Depth proportion is approximately 45.9 percent, a profile that maintains sufficient pavilion volume for internal light travel, this yields a lively internal return for strong face up color while preserving outline brilliance.

Clarity is graded very very slightly included, evaluated at eye level, and the inclusions present play a decisive role as natural identifiers, adding traceable character without compromising apparent transparency. Under magnification minor pinpoint crystals and subtle growth zoning are evident as diagnostic features, and these microscopic fingerprints are consistent with natural spinel formation in the Tanzanian deposits. These inclusion types are localized and sparsely distributed, they are not surface reaching and they do not affect polish quality. Because the stone is untreated, these internal markers are stable records of origin and formation, useful for provenance assessment and for differentiating this natural spinel from lab grown or diffused material. For the gemologist and the informed buyer, these tiny internal features enhance desirability, they provide a unique signature for the piece, and they increase confidence in long term optical stability.

From a setting and design perspective, the combination of vivid reddish pink color, precise mixed brilliant faceting, and very very slight inclusions makes this 0.67 carat pear an excellent candidate for solitaire and halo oriented designs where color saturation is the focal point. The good hardness and excellent polish facilitate secure mounting in prong, bezel, and three stone constructions, while the untreated origin and Tanzanian provenance add narrative value for collectors. The Natural Gemstone Company stands behind the technical description and offers additional imaging, verification, and mounting consultation on request, and we are prepared to provide gemological documentation upon purchase. For buyers seeking a thoroughly characterized, naturally vivid reddish pink spinel with technical clarity and cutter intentionality, this gemstone combines aesthetic appeal with measurable gemological attributes for confident acquisition.