Green in sunlight. Red in lamplight. Color-changing alexandrite is nature’s magic trick.
Often described by gem aficionados as “emerald by day, ruby by night,” alexandrite is the very rare color-change variety of the mineral chrysoberyl. Originally discovered in Russia’s Ural Mountains in the 1830s, it’s now found in Sri Lanka, East Africa, and Brazil, but fine material is exceptionally rare and valuable.
The year alexandrite was discovered in Russia’s Ural Mountains.
CZAR ALEXANDER II
Gem’s namesake who emancipated Russia’s serfs and was assassinated in 1881.
Citrine is recognized as one of the most popular and frequently purchased yellow gemstones.
There are processes used to alter the color, apparent clarity, or improve the durability of gems. Some gemstones have synthetic counterparts that have essentially the same chemical, physical, and optical properties, but are grown by man in a laboratory.
Alexandrite is a birthstone for June, along with pearl and moonstone. Alexandrite is also the gem for the 55th wedding anniversary.
It’s the color-change variety of the mineral, chrysoberyl. Bluish green in daylight, purplish red under incandescent light; hard and durable. Top quality examples are rare and valuable.