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
Canivet's emerald topped by a white stripe behind the eye. They are virtually identical to the garden emerald, with the exception of bill colour; Garden has an entirely black bill while Canivet's has a red-based bill with a black tip. The two species have no overlap in their ranges. The subspecies "C. c. salvini", which occupies the southern part of the range from extreme south of Mexico to Costa Rica, is sometimes split as Salvin's emerald. Canivet's emerald Canivet's emerald or the fork-tailed emerald ("Chlorostilbon canivetii") is a species of hummingbird in the family Trochilidae. It is found in Belize, Costa Rica,