0.69 Ct. Alexandrite from Brazil

This exceptional transparent alexandrite arrives to you through the careful curation of The Natural Gemstone Company, it weighs zero point six nine carats and presents an elegant oval outline with dimensions of six point one three by four point three one by three point two five millimeters. The cutter selected a mixed brilliant faceting scheme to balance scintillation and color saturation, the crown rendered with modified brilliant facets to promote lively return and dispersion, and the pavilion shaped to conserve color while minimizing light leakage. The stone shows a greenish to purplish color change that reads as a true alexandrite shift under different lighting conditions, its medium color intensity offering a pleasing balance between vibrancy and saturation, and its depth measures approximately sixty two percent relative to its average diameter, a proportion that supports strong face up presence without sacrificing durability. The length to width ratio of approximately one point four two gives a well proportioned oval profile that sits comfortably in both classic and contemporary settings, and the polish is graded excellent which ensures crisp facet junctions and a bright, clean table face. The clarity is described as very very slightly included evaluated at eye level, meaning the stone is effectively eye clean with only minute features visible under magnification, and there has been no enhancement, a fully natural Brazilian alexandrite with provenance documented by our team.

The color change phenomenon in this alexandrite is rooted in chromium substitution within the chrysoberyl crystal lattice, the trivalent chromium creates selective absorption bands that interact with the spectral distribution of the viewing light to produce a distinct greenish appearance in daylight and a purplish hue in incandescent conditions. Because the material exhibits medium color intensity, the cutter optimized facet angles to enhance selective light absorption without over darkening the pavilion, the crown angles are calibrated to yield lively scintillation which aids subjective perception of the color change as one moves the gem, and the mixed brilliant scheme permits a controlled interplay of contrast and brightness that highlights the purplish tones under warm light while preserving the greenish character under full spectrum illumination. Optical performance is further aided by the stone s refractive index and hardness inherent to chrysoberyl, properties that allow the facets to be cut sharply and polished to exceptional smoothness, which in turn increases light return and sharpens the color transition that collectors and connoisseurs prize.

From a clarity and cutting perspective this alexandrite tells a precise narrative, its very very slightly included grade evaluated at eye level translates into minimal internal features that do not detract from the gem s face up appeal, inclusions present under magnification are typical of natural alexandrite and serve as subtle fingerprints of origin rather than liabilities. The cutter worked from a clean piece of Brazilian rough that displayed good crystal habit, the preforming stage preserved weight while orienting the long axis to the crystal s growth direction to reduce the appearance of any strong pleochroism, and the final faceting employed exacting symmetry to center the table and maintain consistent facet size across the crown and pavilion. Attention to girdle finish and facet junction integrity was part of the finishing process, the polish achieved an excellent grade which reduces surface light scatter and amplifies both brilliance and color. The result is a stone whose measured proportions and facet architecture offer predictable optical performance when set, and whose natural clarity and surface finish will be appreciated by gemologists and seasoned buyers who evaluate gemstones by both empirical standards and visual nuance.

The journey of this alexandrite begins in Brazilian deposits where small scale miners and experienced prospectors locate chrysoberyl bearing veins through geological mapping and hands on sampling, the rough was extracted and triaged on site for transparency and potential color change, it then passed through a sequence of cutting decisions informed by the rough s internal features and the desired yield. At our facility the rough was examined under multiple light sources to identify the orientation that maximized color change, the decision to execute a mixed brilliant oval was deliberate, aimed at producing a stone that performs well across lighting environments while retaining a compact, wearable weight. After cutting and polishing the gem underwent comprehensive gemological assessment, the very very slightly included clarity evaluated at eye level, the color intensities measured in daylight and warm light, and the no enhancement status verified through standard testing. The Natural Gemstone Company stands behind this stone with traceable provenance and an assurance of ethical sourcing, we recommend this alexandrite for a fine solitaire ring or a pendant where its dramatic color shift can be appreciated across different settings, and we welcome inquiries from clients who require additional measurements, photographic documentation under varied lighting, or bespoke mounting suggestions to showcase the stone s technical and aesthetic strengths.