Alexandrite

Alexandrite

Emerald by day, Ruby by night


Fact Sheet

Birthstone Month: June (alongside Pearl and Moonstone)

Available Cuts:
• Oval
• Round
• Cushion
• Pear
• Emerald
• Cabochon

Fact Sheet:
• Mineral: Chrysoberyl
• Chemical Composition: BeAl2O4 (Beryllium Aluminium Oxide)
• Colours: Green in daylight, red to purplish-red under incandescent light
• Country of Origin: Russia, Brazil, Sri Lanka, India, Madagascar
• Estimated Market Value per Carat Weight: $10,000 - $50,000+ depending on colour change, clarity, and origin

History and Folklore

Discovered in Russia's Ural Mountains in the 1830s, Alexandrite was named after Tsar Alexander II and quickly became a symbol of Russian royalty. This rare gem is famous for its dramatic colour change—green in daylight and red under incandescent light—earning it the nickname "emerald by day, ruby by night." Alexandrite is said to bring good fortune, balance, and confidence, and its ability to change colour has long been associated with adaptability and resilience.

Buyer's Guide

When choosing Alexandrite, the most valuable stones display a strong and distinct colour change from green to red. Stones that show intense colours with high clarity are particularly prized. Due to its rarity, authentic Alexandrite can be quite expensive, so it’s important to verify the stone’s origin and obtain certification. Alexandrite is a durable gemstone, making it suitable for all types of jewellery, but its value and rarity make it especially cherished in heirloom pieces.