The green amethyst is a type of quartz that is prized by jewelers for its delicate and iridescent green hue. It gets its greenish color from iron 'impurities' that are introduced to the more common quartz composition found in nature. Quartz is a silicon-based compound, SiO2, that is normally found in nature in a pinkish or purplish hue. With the right measure of ferrous compounds introduced to them, they can take on a yellow or green color that we associate with the 'green amethyst'.

Rarely do we find green versions of quartz in nature. Most green amethysts have been synthetically produced from the pink-purple quartz base through a heating process that introduces iron elements into its structure. Brazil is a major producer of green amethysts, which also go by the name prasiolite or citrine. Interestingly, the word 'prasiolite' comes from greek words for 'leek' and 'stone', with the first word referencing its color tone (as opposed to any other attribute of the onion!).

Quartz is a fabulous material for gemstone cuts because their stable crystalline chemical structure tends to produce large crystals that are perfect for cutting. Also, they are hard - 7 on the mohl scale of hardness - which means they will withstand cutting process and in final form, they will be durable and resistant to chipping and scratching. Green amethysts can be found in every kind of cut imaginable, from cushion, round, oval, pear-shaped and many more.

Because they can be large, they are perfect as feature stones in rings, pendants and necklaces, earrings or bracelets. Often they are set off against a white gold, or perhaps silver, so that its subtle shade of green can more purely be displayed.

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