4.65 Ct. Greenish Yellow Chrysoberyl from Ceylon (Sri Lanka)

This 4.65 carat round chrysoberyl exhibits a transparent, greenish yellow hue, with dimensions of 10.39 by 10.36 by 6.38 millimeters that yield an overall depth of approximately 61.4 percent, a proportion that sits squarely within the ideal range for optimized light return in round cuts. The stone is fashioned as a mixed brilliant cut, combining a brilliant style crown with a faceted pavilion geometry designed to enhance both dispersion and contrast. The cutting exhibits precise symmetry, tight facet junctions, and an excellent polish that contributes to strong windowing control and crisp facet delineation across the crown and pavilion. Clarity evaluates as slightly included at eye level, indicating small, localized inclusions that do not materially disrupt the overall face up appearance or diminish the stone's brilliance. There is no indication of any laboratory or treatment enhancement, this chrysoberyl is natural and untreated, originating from Ceylon, Sri Lanka, a provenance that is historically associated with finely colored chrysoberyls exhibiting clean body color and stable optical properties. Technically, chrysoberyl offers high durability, with a hardness of approximately 8.5 on the Mohs scale, a refractive index in the range of approximately 1.746 to 1.755, low birefringence, and a specific gravity around 3.7 to 3.8, factors that support both everyday wearability and longevity as an investment grade material.

Optically the gem presents an intense color intensity with balanced saturation and a medium tone, the greenish yellow hue sitting toward the greener end of yellow, imparting a distinct, sophisticated appearance that changes subtly with viewing angle due to weak pleochroism inherent to chrysoberyl. The mixed brilliant faceting strategy produces a lively combination of brilliance and scintillation, with the brilliant crown facets dispersing white light while the pavilion facet architecture returns color and depth, resulting in a three dimensional face up presence larger than its carat weight might suggest. The cutter has prioritized table and crown relationships to maintain sparkle without sacrificing color depth, and the pavilion depth is calibrated to reduce leakage while preserving the gem s intrinsic color saturation. The excellent polish amplifies facet contrast, enabling crisp star patterns and well defined light return under direct illumination. At 4.65 carats and 10.4 millimeter diameter, this round shape offers a commanding table for rings and pendants, producing a visible visual impact on the finger as shown in the accompanying images, while the robust hardness and stable chemical composition make it a prudent choice for settings intended for routine wear.

From an investment standpoint this Ceylon chrysoberyl combines several fundamental attributes that support future appreciation, scarcity, provenance, and untreated status. Larger, clean, and well cut chrysoberyls in uncommon greenish yellow hues are comparatively rare on the primary market, and stones above four carats with strong face up color and excellent polish tend to attract both collectors and high end designers, which creates durable demand. The Sri Lankan origin confers a provenance premium due to the consistent quality historically associated with material from that region, and the absence of heat or irradiation treatments further enhances marketability to purist collectors who prioritize natural, untreated gems. Durability and daily wear suitability reduce the risk of functional obsolescence, and the mixed brilliant cut maximizes visual appeal in both jewelry and investment portfolios, increasing liquidity in secondary markets. To optimize long term value retention we recommend securing a contemporary laboratory report from a recognized gemological laboratory at time of purchase, maintaining documented provenance, and choosing secure channels for sale such as established auction houses or specialist dealers. While market conditions can fluctuate and no investment is without risk, the combination of weight, cut quality, intense natural color, exemplary polish, eye level clarity, lack of enhancement, and Ceylon origin make this chrysoberyl a candidate for steady appreciation, particularly as demand for well provenanced colored gemstones continues to grow. The Natural Gemstone Company is offering this specimen as a carefully evaluated, investment oriented gem, and we can assist with certification options, bespoke mounting recommendations, and long term stewardship advice to protect and enhance the stone s value.