2.56 Ct. Yellowish Green Chrysoberyl from Tanzania

This specimen is a transparent 2.56 carat cushion shape yellowish green chrysoberyl, with measured dimensions of 8.10 by 6.40 by 5.45 mm, a fine example of medium color intensity and natural hue uniformity. The cutting style is a mixed brilliant cut, incorporating a brilliant facet arrangement on the crown coupled with modified pavilion facets to optimize light return, dispersion and scintillation for a cushion outline. Clarity is graded very slightly included at eye level, with only minor internal characteristics that do not interfere with the overall transparency or visual performance. The gem has an excellent polish, showing crisp facet junctions and clean facet planes, and it is free of enhancements, with origin recorded as Tanzania. At The Natural Gemstone Company we present this stone as a fully natural material with no heat, irradiation or diffusion treatments, preserved in its original state for collectors and connoisseurs who prioritize untreated gems.

From a gemological perspective this chrysoberyl benefits from material properties that favor durability and brilliance, it has a refractive index that typically ranges around 1.745 to 1.755, and a specific gravity near 3.73, providing a noticeable heft relative to size. The mixed brilliant cutting strategy exploits the refractive index to generate strong internal reflection, while minimizing windowing through carefully calculated crown angles and pavilion depth. The measured table and crown proportions have been balanced to maintain a lively face up appearance, the pavilion facet design reduces light leakage, and the excellent polish enhances facet contrast and crisp white light flashes. The very slightly included clarity grade contributes to the gem having internal features that are characterful under magnification, while remaining effectively invisible in daily wear, a trait that preserves brilliance and makes the stone suitable for rings as well as pendants.

Optical character and color behaviour are critical when evaluating chrysoberyl, and this piece displays a yellowish green tone with medium saturation that responds well to different lighting environments. Under cool light the stone leans toward a fresh green with a slight yellow overtone, while in warmer illumination the yellow component becomes more apparent, creating a lively and changeable presence. Chrysoberyl commonly displays weak pleochroism in faceted material, and the mixed brilliant cut here is oriented to best present the dominant hue face up, while facet symmetry and pavilion angles preserve flash and depth. The excellent polish supports strong luster on the girdle and crown, and the cushion outline benefits from gently rounded corners that distribute light across the table and crown facets. Given its hardness near 8.5 on the Mohs scale and stable crystalline structure, this Tanzanian chrysoberyl is well suited to daily wear, and its lack of enhancements assures longevity of color and optical properties.

For custom jewelry design the yellowish green tone of this chrysoberyl offers a versatile palette for complementary gems and metal selections, a considered pairing can either emphasize contrast or create harmonious color blends. For contrast select near colourless or slightly warm small brilliant cut diamonds to form a halo or shoulder accent, their high dispersion and white brilliance will lift the greenish yellow and provide crisp visual separation. For a warm palette combine with cognac or champagne diamonds for tonal layering that enhances the yellow component, while for a fresh and modern look pair with light blue aquamarine or fine sky blue sapphires to set up a cool warm interplay. Green tone sapphires in a slightly deeper hue can be used as melee to create a tonal gradient, while small tsavorite garnets with vivid green saturation can create a lush monochromatic ensemble. Metal choice influences apparent color, choose 18 karat yellow gold to warm and intensify the yellow component, choose 18 karat rose gold for a soft warming effect that complements the greenish yellow, and choose platinum or 18 karat white gold to present a crisp cool contrast that accentuates brilliance. For settings consider a low bezel to protect the cushion corners while maintaining face up brilliance, or a four prong slim profile to maximize light admission, and for a pendant a suspended bail with tapered melee diamonds will allow movement and changing light to reveal the stone dynamics. At The Natural Gemstone Company we can collaborate on precise caliber of melee for proportion, and on metal weight and setting angles to ensure that the mixed brilliant cut and the measured proportions of 8.10 by 6.40 by 5.45 mm are presented to their best advantage.