1.03 Ct. Alexandrite from Brazil

This round alexandrite is a precisely measured natural gem, weighing 1.03 carats, with dimensions of 5.80 by 5.72 by 4.02 millimeters, presented in a mixed brilliant faceted cutting style and finished with an excellent polish. Origin is Brazil, and the stone is natural with no enhancement. Color change is a defining attribute of this specimen, exhibiting a greenish cast under fluorescent lighting and a distinctly reddish tone under incandescent illumination, with an overall intense color intensity that remains lively across viewing conditions. Clarity is evaluated as slightly included at eye level, indicating the presence of internal features that are visible to a careful observer but do not detract from the gem s transparency or its color change performance. The proportions of the mixed brilliant cut have been worked to balance face up brilliance with color saturation, allowing the alexandrite to present a compact and focused visual presence on the finger or in a setting, while the untreated status reinforces the natural character of the material, a provenance detail provided by The Natural Gemstone Company.

The internal architecture of this alexandrite is characterized by a combination of inclusion types that together create an unmistakable signature, a fingerprint for this particular crystal. Within the crown and pavilion there are fine needle like inclusions that are consistent with rutile silk, dispersed in orientations that contribute to subtle softening of light and a silk like glow when viewed at certain angles. Accompanying these needles are small angular crystal inclusions and pinpoint reflective crystals that act as localized facets, creating micro highlights within the stone. A distinctive healed feather or internal break is visible near the girdle on some viewing planes, manifesting as a slightly irregular, flattened zone that has refractive index contrasts with the surrounding material. In addition there are faint cloud like groupings and minute negative crystals that register as delicate shadowed areas under magnification. Each of these inclusions is stable within the natural matrix, and together they produce a pattern of internal topology that is unique to this alexandrite, a combination that skilled gemologists and collectors will recognize as part of the stone s natural identity.

These inclusions affect the gem s optical behavior in ways that are both subtle and important to its overall appearance. The needle like silk and micro crystals modulate light scattering, which softens extreme brilliance and contributes to a richer, deeper color appearance face up. This diffusion enhances the perceptible color change because the scattering alters the balance of wavelengths reaching the eye under different light sources, making the green to red transition appear more nuanced and layered. The healed feather near the girdle, while a notable structural feature, has been evaluated for stability and does not compromise the gem s integrity when set with appropriate care, however it can create a slightly darkened zone on some facets that adds to the stone s illusion of depth, particularly when the garnet like red is dominant in incandescent light. The combined effect of pinpoint crystals and clouded areas produces an internal contrast that highlights facet junctions and centers the viewer s attention on the gem s color core, giving this alexandrite a lively, almost dynamic presence despite its compact size.

From a practical perspective this 1.03 carat Brazilian alexandrite presents as an appealing choice for a thoughtful jewelry design or for a collector who values natural character and a pronounced color change. Its round mixed brilliant cut is versatile and will sit well in secure settings that can protect the girdle area, such as a bezel or a well engineered prong mount that avoids concentrated force on the healed feather. The slightly included clarity grade and the natural inclusion pattern contribute to the stone s individuality and should be considered an asset for those seeking a specimen with personality rather than a visually sterile appearance. On the hand, the gem displays a concentrated face up color and a robust change from greenish to reddish tones, as seen in comparative lighting, making it suitable for single stone pieces where color change is the primary attraction, or as a refined accent in multi stone compositions. The gem is offered by The Natural Gemstone Company, and its untreated status and Brazilian origin are recorded to assist with appraisal, care guidance, and design planning, enabling a precise understanding of what the stone will contribute to a finished piece.