1. Physical Properties
Alexandrite is the extraordinary color-change variety of chrysoberyl, famously described as 'emerald by day, ruby by night.' In daylight or fluorescent light, it appears green to bluish-green; under incandescent light or candlelight, it transforms to red, purplish-red, or raspberry. This dramatic color change is caused by chromium and the stone's unique optical absorption. The most prized specimens show a complete shift with strong saturation in both colors. Russian alexandrites from the Ural Mountains set the standard for the finest quality.
2. Spiritual Meaning
Alexandrite is a stone of balance, transformation, and duality — reflecting the harmony between the physical and spiritual worlds. It strengthens intuition, enhances creativity, and helps the wearer adapt to change. Alexandrite is believed to bring joy, good fortune, and the ability to see both sides of any situation. It bridges the Heart and Crown Chakras, connecting emotional wisdom with higher consciousness.
3. History & Lore
Discovered in 1830 in Russia's Ural Mountains on the day of future Tsar Alexander II's coming of age, it was named in his honor. The red and green colors coincidentally matched Imperial Russia's military colors, making it a national treasure. Original Russian deposits were exhausted by the early 1900s, making antique Russian alexandrite extraordinarily valuable. Major new deposits were discovered in Brazil in 1987.
4. Origins & Mining
Major mining locations: Russia (Ural Mountains) · Brazil · Sri Lanka · Tanzania · Madagascar
5. Birthstone & Zodiac
Birthstone for: June (六月)
Zodiac: Gemini, Scorpio
6. Chakra & Energy
Associated Chakra: Crown/Heart
7. Care & Maintenance
Durable (hardness 8.5) and suitable for daily wear. Safe for ultrasonic and steam cleaning. Avoid harsh chemicals. Store separately from harder gems (diamond, sapphire).
8. Value & Quality Factors
The quality of color change is paramount — a dramatic 80-100% shift from green to red is most valuable. Russian origin carries a 3-5x premium. Stones over 1 carat with strong color change are extremely rare and command per-carat prices exceeding fine diamonds. Brazilian alexandrites typically show a bluish-green to purplish-red change.
9. Famous Examples
The largest known faceted alexandrite is a 65.08-carat stone in the Smithsonian. Russian alexandrites from the Ural Mountains set the quality benchmark. A 21.41-carat alexandrite ring sold for $1.2 million at auction.