JOALYS Collection

Alexandrite Collection

Alexandrite is the ultimate color-change gemstone: green under daylight, red under incandescent light. Discovered in Russia in 1830 and named after Tsar Alexander II. Rarer than diamond, it is one of the world's most sought-after gems.

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Alexandrite: The Two-Faced Gem

Alexandrite is a chrysoberyl containing chromium, which absorbs light uniquely. In daylight (blue-rich), it appears green. Under incandescent light (red-rich), it turns red or purple. This spectacular change is the most pronounced of any gemstone.

Legendary Rarity

Original Russian deposits are depleted. Sri Lanka, Brazil, and Tanzania still produce specimens, but fine quality stones remain exceptionally rare. 8.5 Mohs hardness.

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Independent laboratory report included. Mine-direct pricing, insured shipping, 7-day guarantee.

Frequently Asked Questions

Why does alexandrite change color?

Chromium in chrysoberyl absorbs different wavelengths depending on light source. Daylight = green, incandescent = red.

Is alexandrite rarer than diamond?

Yes, considerably. Quality alexandrites with strong color change are among the rarest gemstones in the world.

Where do alexandrites come from?

Historically Russia (Ural Mountains). Today from Sri Lanka, Brazil, and Tanzania.

Is alexandrite rare?

Yes. Fine alexandrite with a clear green-to-red color change is among the rarest colored stones. Nobody can tell you what a stone will be worth in ten years; what you can check today is the species, the natural origin and the treatment status, so ask for an independent laboratory report.