When Tourmaline appears to look like a Ruby it is renamed Rubellite.
However, just like the debate about when a dark Pink Sapphire becomes a Ruby, Tourmaline is only renamed Rubellite if its deep red colours are seen in both daylight and artificial light.
The gem is a real treasure. It is far rarer than its closest rival Ruby and many people find it infinitely more attractive. However, as often happens in the gem world, it does not command such a high price as its competitor, due to it being less well-known.
d many people find it infinitely more attractive.