0.81 Ct. Yellowish Green Chrysoberyl from Tanzania

This transparent 0.81 carat asscher octagon shape chrysoberyl from Tanzania measures 4.93 x 4.86 x 3.74 millimeters, with a depth ratio of approximately 76.4 percent, displaying a yellowish green hue at medium color intensity. The stone is fashioned in a true asscher cut, with concentric square step facets on the crown and pavilion, cropped corners that form the octagonal outline, and extremely well defined facet junctions. Clarity is described as very very slightly included evaluated at eye level, and the gem has been given an excellent polish. There are no enhancements, and the provenance from Tanzania is documented by The Natural Gemstone Company. The combination of precise symmetry and tight facet meet points makes this piece immediately legible to the eye as a high quality, expertly executed asscher.

Technically the sparkle of this chrysoberyl is a product of its optical and structural attributes married to meticulous cutting. Chrysoberyl has a relatively high refractive index for a colored stone, and the asscher step geometry transforms that refractive advantage into a series of crisp, mirrorlike flashes and controlled contrast planes rather than diffuse dispersion. The broad, parallel crown and pavilion facets create the classic hall of mirrors effect, generating repeated bright white flashes and strong facet delineation that read as exceptional brilliance under directional lighting. The relatively deep profile enhances internal light return and color saturation without creating windowing, so the yellowish green appears evenly distributed yet alive with shifting highlights. The stone exhibits only subtle pleochroism and very slight birefringence that are consistent with chrysoberyl, producing fine directional color shifts and minimal doubling when viewed under magnification, which preserves transparency and visual clarity at normal viewing distances. Cut proportions have been optimized to the material, with pavilion angles and crown heights chosen to maximize light return given chrysoberyl optical constants, and the excellent polish ensures each facet functions as a high fidelity reflector. The result is a compact, durable 0.81 carat gem that delivers a restrained, technical brilliance and a refined, faceted structure that outperforms many similarly sized stones, a precision offering presented by The Natural Gemstone Company.