The Russian Alexandrite 0.47 ct is a distinguished specimen of the alexandrite family, renowned for its rare and captivating optical properties. Alexandrite, originally discovered in the Ural Mountains of Russia in the 1830s, is a variety of chrysoberyl notable for its remarkable color-changing phenomenon, which is among the most striking in the gemstone world. This phenomenon, known as the Russian Alexandrite color change, causes the stone to appear greenish in daylight or fluorescent light, while revealing rich red or purplish-red tones under incandescent illumination. The 0.47 ct specimen exemplifies this effect with precise balance, offering a clear, vivid shift that highlights its natural brilliance and crystalline structure.
As a Russian Alexandrite stone, this gem exhibits exceptional clarity and precise faceting, maximizing light reflection and internal fire. The rarity of genuine alexandrite Russian sources, particularly from the historic Ural deposits, significantly elevates both its gemological value and collector appeal. Its mineral composition, chrysoberyl (BeAl₂O₄), contributes to exceptional hardness (8.5 on the Mohs scale), making it resilient to everyday wear while preserving its lustrous surface and optical precision.
The 0.47 ct Russian Alexandrite also demonstrates the characteristic pleochroism inherent to alexandrite, where differing angles of observation reveal subtle variations in color intensity. These variations are not merely aesthetic but serve as a scientific marker of the stone’s geological origin. Gemological analysis confirms its natural formation, with trace elements such as chromium responsible for the distinctive Russian Alexandrite color change. Unlike synthetic or lab-grown counterparts, this authentic Russian Alexandrite stone retains the nuanced depth and rare spectral quality that collectors and gemologists associate with historically sourced Ural alexandrites.
Beyond its optical allure, the 0.47 ct alexandrite Russian holds significance in gemological studies due to its unique lattice structure and absorption spectrum, which distinguishes it from other chrysoberyl varieties. Each facet interacts with light to accentuate the dual-tone effect, creating a dynamic visual experience. Its natural origin, precise cut, and enduring stability exemplify the characteristics that define top-tier Russian Alexandrite stones, making this gem not only a collector’s item but also a subject of scientific and gemological interest.
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