1.30 Ct. Tsavorite Garnet from Tanzania

This 1.30 carat cushion shape tsavorite garnet presents a compact, technically precise package, measuring 6.62 by 6.57 by 3.70 millimeters, cut and polished to rigorous standards by experienced lapidaries at The Natural Gemstone Company. The gem is fashioned in a mixed brilliant cut, employing brilliant style crown facets combined with a modified pavilion geometry, a configuration chosen specifically to harness tsavorite garnet optical parameters. The clarity is graded as slightly included at eye level, and the stone exhibits a vivid color intensity and an excellent polish, with no enhancement. Origin is Tanzania, and the material bears the chromophore signature consistent with natural vanadium and chromium bearing grossular garnet, providing a saturated pure green that remains even across the table and across pavilion reflections. The finished girdle and facet junctions are executed with strict symmetry tolerances, ensuring minimal light leakage and coherent facet alignment that is essential for consistent optic performance in small format gemstones.

Optically the gem’s structure is the principal reason for its exceptional sparkle, the combination of tsavorite’s refractive index, facet architecture and surface finish producing a signature of brilliance, dispersion and scintillation that is difficult to match. Tsavorite garnet typically exhibits a refractive index in the range of approximately 1.740 to 1.760, with measurable dispersion that yields crisp flashes of spectral color when the stone is tilted against a white field. The mixed brilliant cut employed here uses shallow crown facets cut to a predetermined angle set to the stone’s refractive index, paired with a pavilion depth that results in a depth to diameter ratio of approximately 56 percent, a compromise that favors both light return and color saturation. By calibrating pavilion angles to the material’s index, internal reflections are retained and redirected through the crown, creating concentrated areas of white brilliance and colored fire. The isotropic character of garnet eliminates birefringence related distortions, so facet junction precision and polish quality are the dominant variables controlling the crispness of flash, and with excellent polish this tsavorite yields sharp, well defined facet flashes and a compact scintillation pattern that remains lively under both direct and diffused illumination.

From a connoisseur standpoint the combination of vivid green color and highly optimized cutting makes this stone noteworthy, the color depth is substantial without appearing overly dark, maintaining a lively medium dark tone and strong saturation, a balance that preserves both color and brilliance. The slightly included clarity grade indicates small natural inclusions typical of untreated tsavorite, inclusions that are positioned and sized so as not to materially obstruct the principal light paths created by the cutter, and they do not compromise structural integrity for everyday jewelry use given the species hardness of approximately seven to seven and a half on the Mohs scale. The provenance from Tanzania is reflected in the color chemistry and crystal habit, and the fact that the gem is unenhanced confirms that the observed color and optical performance are intrinsic to the material. Craftsmanship details such as precise facet junctions and consistent facet angles have been prioritized to exploit the gem’s refractive behavior, producing a brilliancy profile that reads as intense, focused and internally luminous. For clients and designers seeking a compact, technically refined green stone with outstanding light performance, this 1.30 carat cushion tsavorite from The Natural Gemstone Company delivers a level of sparkle and color fidelity that stands out among natural green gemstones, and we are available to provide additional instrument readings, high resolution imagery under standardized lighting, or to discuss mounting recommendations that preserve the facet interactions responsible for the gem’s signature scintillation.