0.40 Ct. Greenish Yellow Chrysoberyl from Tanzania

This 0.40 carat transparent, greenish yellow chrysoberyl from Tanzania is a finely presented example of a gem that balances color, clarity, and cut. The stone measures 4.54 x 3.78 x 2.73 mm and has been fashioned into a classic emerald cut, a choice that suits chrysoberyl exceptionally well. The clarity is described as very very slightly included when evaluated at eye level, which for the practical buyer means the stone appears clean to the naked eye with only minute inclusions visible under careful scrutiny. The color intensity registers as medium, giving the gem a pleasing saturation that reads lively and fresh without becoming overly dark. An excellent polish brings out the stone surface luster, and the piece is entirely natural with no enhancements, a point of significance for collectors and connoisseurs who prioritize untreated material. The Natural Gemstone Company is pleased to present this Tanzanian chrysoberyl as part of a selection of responsibly sourced, high quality natural gems.

From a gemological perspective, chrysoberyl is a highly desirable species due to its combination of optical performance and durability. With a refractive index in the range around 1.746 at the ordinary ray and 1.755 at the extraordinary ray, chrysoberyl returns light efficiently, producing a crisp brilliance that contributes materially to its face up appeal. The hardness at 8.5 on the Mohs scale means it is hard enough for daily wear in rings and other frequently worn jewelry, while remaining amenable to careful cutting and polishing. The low dispersion value, lower than that of diamond, means that chrysoberyl does not dazzle with spectral fire, but rather delivers a clean, bright brilliance and crisp reflections, traits that upscale buyers often prefer because they emphasize color and clarity over flashy dispersion. The stone s moderate pleochroism in greenish yellow tones can create subtle shifts in appearance as the stone moves, adding depth and interest to its face up presentation.

The emerald cut chosen for this gem is central to how the stone interacts with light, and this cut enhances chrysoberyl in several technical and aesthetic ways. The step facets of the emerald cut create broad, parallel planes that act like mirrors, producing hallmark flashes of light known as the hall of mirrors effect. Because chrysoberyl has a relatively high refractive index, light entering the stone is strongly refracted and guided across these planes, then reflected back toward the observer in broad, even flashes that emphasize the gem s color rather than breaking it into spectral fire. The large table facet offers a clear view into the body of the stone, showcasing its very very slight inclusions only when closely inspected and allowing the medium color intensity to be appreciated evenly. The facet arrangement minimizes light leakage when proportioned correctly, and the excellent polish further reduces surface diffusion so that reflections stay sharp and clean. For a greenish yellow hue, the emerald cut deepens the perceived color saturation without making the stone look heavy, producing a refined, classic aesthetic that educated buyers value for its restraint and clarity.

For practical use and investment evaluation, this 0.40 carat Tanzanian chrysoberyl is versatile and attractive. Its size and proportions make it suitable for a refined solitaire ring, an elegant pendant, or a pair of complementary studs, particularly when set to allow light to enter the pavilion and return through the table. Settings in warm yellow gold tend to harmonize with greenish yellow tones, enhancing warmth and richness, while white metals provide a contemporary contrast that can make the color appear fresher. Because the gem is untreated, it carries an intrinsic premium in markets where natural state is preferred, and its combination of eye clean clarity, excellent polish, and professional emerald cutting makes it an appealing choice for collectors and jewelers alike. Routine care is straightforward, with warm soapy water and a soft brush recommended for cleaning, and professional ultrasonic cleaning acceptable unless specific inclusions are a concern. The Natural Gemstone Company stands behind this gem s origin and description, and we encourage interested buyers to request detailed imagery and documentation for assurance. Our team will assist with mounting recommendations and certification options to support a well informed purchase.