Despite its name, the chrysoberyl does not belong to the beryl group. It is characterised by its high hardness of 8.5 and catches the eye with its shiny brilliance. The partly neon yellow variant of chrysoberyl is little known, but is fascinating in itself. Alexandrite, on the other hand, is very well known and expensive – a chrysoberyl with colour-changing properties. Alexandrite shines green in natural light and red in artificial light.