Emerald says: "§ 23.23(c) It is unfair or deceptive to use the word "laboratory-grown", "laboratory-created", "[manufacturer name]-created", or "synthetic" with the name of any natural stone to describe any industry product unless such industry product has essentially the same optical, physical, and chemical properties as the stone named." Emerald is regarded as the traditional birthstone for May as well as the traditional gemstone for the astrological signs of Cancer. One of the quainter anecdotes about emeralds was told by the 16th-century historian Brantôme, who referred to the many impressive emeralds the Spanish under Cortez had brought back to Europe from Latin
Grass emerald heathland, moorland, and commons, where its larvae feed on broom, gorse and petty whin. Habitas include mainly dry and warm regions, heath, steppes, semi-dry or dry grassland, stone quarries and forest edges. Grass emerald The grass emerald ("Pseudoterpna pruinata") is a moth species. It occurs throughout Central and South-eastern Europe (with the exception of the far North) and in Asia Minor and the Caucasus further East to the Urals and Siberia. It is fairly common throughout Great Britain with the exception of northern Scotland. In the Southern Alps, it rises up to 1500 metres. The wingspan is 30–35 mm. Green,