1.23 Ct. Chrysoberyl from Tanzania

This transparent 1.23 carat radiant shape greenish yellow chrysoberyl from Tanzania is a finely measured example of both material quality and lapidary precision. The stone measures 5.71 x 5.28 x 4.69 mm, and its radiant cut combines a faceting schema that merges trimmed corners with a brilliant style crown and pavilion, yielding a lively interplay of light and a strong color presence. Clarity has been evaluated as very very slightly included at eye level, and the combination of that near eye clean clarity with intense color intensity and an excellent polish produces a gem that reads as both gemologically clean and visually striking. There has been no enhancement applied to this specimen, the color and clarity are entirely natural, and provenance is documented from Tanzania, a detail that appreciably enhances collectible and market value when delivered by The Natural Gemstone Company.

From a gemological perspective chrysoberyl is an orthorhombic beryllium aluminum oxide, with a hardness of approximately 8.5 on the Mohs scale, a specific gravity in the high three range, and refractive indices that place its optical behavior in a range that favors strong single and multiple facet return when cut with disciplined proportions. The radiant cut applied here exploits chrysoberyl s high refractive index, using a compact crown and a structured pavilion to optimize internal reflection, and therefore to maximize apparent brilliance and color saturation. The measured pavilion depth relative to the gem s average diameter is substantial, which, in technical terms, increases the optical path length through the material, promoting stronger absorption of specific wavelengths and intensifying the greenish yellow hue without sacrificing light return. The excellent polish is evident in the crisp facet junctions and the mirror like facet surfaces, which minimize surface scattering and preserve the gem s intrinsic luster.

Clarity discussion for this chrysoberyl is focused and pragmatic, the very very slightly included grade indicates inclusions that are extremely minor at normal viewing distances, inclusions that do not detract from transparency or scintillation, and inclusions that are typically confined to localized, deep seated pinpoints or fine growth features. Evaluated at eye level, the stone presents as essentially eye clean, and the radiant cut s mixed brilliant style faceting pattern is particularly effective at concealing small internal features by redistributing light and creating multiple reflection pathways. Precise symmetry and facet alignment were prioritized during cutting to ensure a balanced return pattern across the table and crown facets, and the trimmed corners of the radiant shape provide an additional mechanical advantage for jewelry applications, reducing the risk of corner chipping during setting or wear, while preserving elegant geometric proportions for contemporary mounting designs.

The Tanzanian origin of this chrysoberyl is materially significant to both connoisseurs and technical buyers, provenance in chrysoberyl can materially affect desirability because local geology controls trace element chemistry, crystal habit, and the frequency of high clarity crystals. Tanzanian chrysoberyls are noted among trade professionals for producing vivid yellow to greenish yellow tones with clean crystal structure in certain deposits, and the interplay of minor iron and other trace constituents in these localities commonly shifts hue and saturation in ways prized by collectors. Strategic sourcing from Tanzania therefore conveys both a geological story and a supply characteristic that can command a premium, the documented origin and the lack of enhancement increase confidence in long term rarity and authenticity. For practical use, this gem s size, shape, and stability make it well suited to solitaire engagement rings, bespoke halo settings, and elegant pendant interpretations where the deep pavilion and intense color will anchor visual focus. The Natural Gemstone Company stands behind the disclosed attributes of this stone, offering full provenance disclosure, and technical guidance for setting and care to preserve the gem s optical performance and collector value.