2.10 Ct. Alexandrite from Ceylon (Sri Lanka)

This alexandrite offered by The Natural Gemstone Company is a finely calibrated natural example, weighing 2.10 carats, fashioned into a classic oval measuring 10.00 millimeters by 6.62 millimeters by 4.02 millimeters, with a mixed brilliant cut that balances scintillation and color retention. The stone exhibits a distinctive color change from a yellowish green in fluorescent or daylight conditions to a brownish orange under incandescent lighting, a transition that is characteristic of high quality chrysoberyl alexandrite. Clarity is graded as very slightly included at eye level, indicating that the gem appears clean to the unaided eye with only minor internal features apparent under magnification. The color intensity is described as medium intense, delivering a lively but not overly dark saturation that preserves excellent light return and face up presence. No enhancements have been applied, and the origin is Ceylon, Sri Lanka, attributes that together support the gem provenance and natural state in keeping with The Natural Gemstone Company standards.

From a faceting and cutting perspective this oval alexandrite demonstrates considered craftsmanship. The mixed brilliant design pairs a faceted crown composed of small, closely arranged brilliant facets with a pavilion arranged to control light pathing and color zoning, the objective being to maximize both brilliance and the visible color change. The cutter calibrated table and crown angles to produce crisp star and kite facets on the crown that break light into lively scintillation, while the pavilion facets are set at slightly more open angles to enhance internal circulation of the pleochroic colors. The stone displays an approximately forty eight percent depth ratio when calculated against the average diameter, a deliberate proportion that increases apparent spread without sacrificing internal reflections critical to the color change phenomenon. Facet junctions are precise, and the polish is graded excellent, resulting in sharp facet outlines and minimal surface disturbance that could otherwise scatter light and dull the color dynamic.

Optical and material properties of this chrysoberyl alexandrite underpin its visual behavior. Alexandrite, as a variety of chrysoberyl, typically exhibits a refractive index in the range expected for chrysoberyl species, along with modest birefringence and low dispersion, characteristics that contribute to its clean, crisp flashes rather than a high fire display. The medium intense saturation in this specimen allows the green and orange components to be read distinctly under appropriate light sources, and the pleochroism produces directional color zones that the cutter oriented to produce the most attractive face up presentation. Specific gravity of chrysoberyl is relatively high, contributing to the substantial weight for the given dimensions and to a satisfying heft when set. The very slightly included clarity grading reflects internal features that do not compromise structural integrity, they are minor and often serve as fingerprint characteristics confirming natural origin when combined with the Ceylon source and the documented absence of treatment.

Durability and daily wear suitability are strengths of this piece, making it an excellent candidate for rings and other everyday jewelry. Chrysoberyl rates eight point five on the Mohs hardness scale, offering strong resistance to scratches from common household materials and jewelry contact, and it exhibits good toughness with no natural cleavage planes that would predispose it to easy fragmentation. Practical gemological care for daily wear includes secure mounting using either well shaped prongs or a protective bezel to minimize lateral impacts on the girdle, though the gem tolerates normal exposure and routine handling very well. Cleaning is straightforward, warm soapy water and a soft brush will safely restore surface luster, and the gem is generally tolerant of ultrasonic cleaning in typical conditions, though avoidance of strong acids and rapid extreme temperature changes is prudent. The Natural Gemstone Company stands behind the described attributes and provenance of this alexandrite, and our cutting and grading choices are intended to ensure a balance of optical performance and robust durability for a lifetime of daily wear.