The English name of Emerald is emerald, which means green gem. According to legend, the jadeite in ancient China was introduced to China through the Silk Road. Emerald is transliterated in English, and Tao is transliterated as "helping wood thorn" in the record of dropping out of farming, also known as "mother green" and "helping water green" Hong Kong called it "Lu", and it was not until modern times that it was collectively called "Emerald", which is the origin of the name "Emerald". Emerald is favored by the royal family and noble families, which has a lot to do with its beautiful, durable and rare characteristics.