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
Emerald Buddha Yia (Bamboo Forest Monastery, later renamed Wat Phra Kaew) in Chiang Rai, revealing a Buddha covered with stucco inside. The Buddha was then placed in the abbot's residence, who later noticed that stucco on the nose had flaked off, revealing a green interior. The abbot removed the stucco and found a Buddha figure carved from a green semi-precious stone, which became known as "Phra Kaew Morakot" or in English the Emerald Buddha. ("Emerald" refers to its "green colour" in Thai, not its composition.) Some art historians describe the Emerald Buddha as belonging to the Chiang Saen Style of the 15th