This gemstone has the most intense green colour. I have never seen a stone like this before.

Tourmaline has a unique miracle of colour. It comes in green, red, blue, yellow, but there are also colourless specimens and black ones. Often two or more colours are found in a single Tourmaline crystal. Also rare and very highly esteemed are Tourmaline gemstones which appear to change their colour and cat’s eye Tourmaline.