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June has three different gemstones that are known to be its birthstone. Alexandrite is one of them, and it is one of the rare gemstones that changes colour depending on the type of lighting that shines on it. Under fluorescent lighting, the alexandrite appears to have a vivid green or bluish green hue, whereas under incandescent lighting, the gemstones turns to an intense red or a purplish red. It is rare to find a large cut alexandrite with vivid colours, therefore they are very expensive.
Alexandrite stones are 8.5 on the Mohs scale, which makes them durable and less susceptible to breakage when struck. This makes it a good choice for rings and other jewellery settings that are worn daily. As for cleaning, it is best to just clean them in warm, soapy water, but ultrasonic and steam cleaners can also be used. (Source: GIA)
