Alexandrite: The Rare Gem That Changes Colour

Alexandrite is one of the rarest and most intriguing gemstones in the world, renowned for its unique ability to change color. Discovered in the 1830s in the Ural Mountains of Russia, it was named after Tsar Alexander II and quickly became a symbol of Russian pride due to its stunning color-changing properties, which reflect the colors of the Russian military.

Key Features:

1. Color-Changing Phenomenon: Alexandrite is best known for its extraordinary color shift. In daylight or fluorescent lighting, it typically appears green or bluish green. Under incandescent or candlelight, it transforms into a reddish or purplish-red hue. This dramatic colour change is due to the stone's complex light absorption and is highly prized among gem enthusiasts.

2. Rarity: Natural alexandrite is extremely rare, especially in larger sizes and with a pronounced colour change. While the original Russian mines are largely depleted, alexandrite is also found in Brazil, Sri Lanka, India, and East Africa. However, stones from these regions vary in quality, with Russian alexandrite's being particularly sought after.

3. Value: The rarity and unique properties of alexandrite make it one of the most valuable gemstones. Its value increases significantly with the strength of the colour change, size, clarity, and cut. High-quality alexandrite can command prices ranging from R185 000 to R300 000 per carat, (as of this article date) with exceptional stones fetching even higher amounts.

4. Durability: Alexandrite is quite durable, with a hardness of 8.5 on the Mohs scale, making it suitable for all types of jewellery.

5. Cultural Significance: In Russian lore, alexandrite is believed to bring good fortune and balance between the physical and spiritual realms. Symbolizing luck, prosperity, and balance.

Synthetic Alexandrite:

Due to its rarity, synthetic alexandrite has been produced since the 1960s. These lab-created stones have the same chemical composition as natural alexandrite but are more affordable and widely available.

Jewellery:

Alexandrite's ability to change color makes it highly desirable for jewelry, often set in rings, pendants, earrings, and bracelets. It is especially valued by collectors and those seeking something truly unique.

Birthstone:

Alexandrite is one of the three birthstones for June, alongside pearls and moonstone. Its rarity and distinctive characteristics make it a particularly special choice for those born in this month.