0.84 Ct. Alexandrite from Brazil

This oval transparent alexandrite weighs 0.84 carat, with precise dimensions of 6.99 x 5.17 x 2.97 millimeters, originating from Brazil, and presenting an uncompromised natural state with no enhancement. The cutting style is faceted, executed as a mixed brilliant cut, combining a brilliant style crown with a modified pavilion schema to optimize return of light while maintaining the oval silhouette. The length to width ratio of approximately 1.35 yields a balanced oval elongation that is visually elegant and suitable for a wide range of jewelry settings. The measured depth is approximately 2.97 millimeters, representing a depth ratio near 49 percent relative to the average diameter, a proportion that favors both face up color saturation and efficient light return without excessive windowing or overly deep color pooling. Clarity is graded as slightly included at eye level, indicating the presence of small internal features that do not materially detract from overall transparency or brilliance, and the polish has been executed to an excellent standard, producing sharp facet junctions and minimal surface disturbance.

The mixed brilliant faceting strategy employed on this stone is deliberate, the crown facets are arranged to create a broad table and well defined star and bezel facets that distribute light across the face, while the pavilion facets have been calibrated to produce aggressive internal reflection and scintillation. This combination enhances the alexandrite effect, the ability of the material to present two distinct color states under different illumination, by generating multiple optical zones within the stone that interact with varying spectral content of light sources. The slightly included clarity grade is consistent with natural alexandrite from Brazil, inclusions that are typically minute and often form part of the stone character, they serve in many cases to break up strong reflections and contribute to a velvety depth of field when the stone is viewed in low light. The excellent polish ensures that facet surfaces function efficiently as optical planes, minimizing light loss at the surface and preserving the crispness of color transitions across facets when the gem is rotated.

Under different lighting conditions the color personality of this alexandrite is strongly evidenced, under midday natural daylight and cool fluorescent sources the stone presents a greenish to bluish green tone, vivid in intensity, with crisp faceted reflections that read as deep teal to emerald, the mixed brilliant architecture disperses shorter wavelengths and produces lively pinfire scintillation. Under incandescent, halogen, or warm LED sources rich purplish to raspberry hues emerge, the same facet planes that returned green light under cooler spectra now absorb and reemit longer wavelengths producing saturated magenta and deep purple face up color, the change is immediate as the spectral balance shifts, and the vivid color intensity maintains saturation so that neither state appears washed out. In direct sunlight the stone demonstrates a complex interplay of strong white highlights and saturated color zones, the high energy blue components of sunlight intensify the green phase while the broad spectral content also allows for flashes of purplish zoning in transition areas, under low ambient light the gem reads as a dense, velvety purple with restrained scintillation, the inclusions that are slight at eye level often become optically muted, contributing to a uniform color field.

For setting and wear considerations, this alexandrite benefits from an open setting that permits light to enter the pavilion, a four or six prong framework preserves entry of oblique light and optimizes the color change effect, while a low bezel can be used when protection is prioritized, understanding that bezel metal will slightly mute lateral light entry and therefore the dramatic color shift. Metal choice will influence perceived color, white metals such as platinum or palladium maintain cooler green presentations, while warmer yellow or rose gold will accentuate the purplish and magenta facets in incandescent light, a factor experienced buyers can use deliberately to tailor the piece. Given the natural origin from Brazil and the absence of any enhancement, this alexandrite represents a robust specimen for collectors and connoisseurs who value provenance and untreated material. For further technical data, high resolution imaging, or bespoke mounting options, please contact The Natural Gemstone Company, we can provide additional observations on facet orientation, inclusion mapping, and recommended mounting angles to maximize the alexandrite phenomenon and overall optical performance.