Alexandrites are remarkable and rare gemstones. They display an extraordinary colour change according to the ambient lighting, from emerald green in daylight to ruby red in incandescent light from tungsten lamps or candles.

How can I tell if my alexandrite is real?

Genuine alexandrites of about one carat are sometimes (rarely) without eye-visible inclusions, so the fact that you can't see anything in the stone doesn't mean it's not genuine. A look under the microscope at 10X or more is recommended. A large, inclusion-free, color-change alexandrite.

What color should alexandrite be?

Its color can be a lovely green in daylight or fluorescent light, changing to brownish or purplish red in the incandescent light from a lamp or candle flame.