Pi Yao is a powerful and auspicious create luck. Pi Yao to help people who are having a bad feng shui due to offend the Grand Duke Jupiter ( Jupiter ) capabilities. If a person has a series of bad luck to move to a new home or just completed any renovation should display Pi Yao at home. Jade , or " jade" in Chinese is also known as " Shitian Tang ." Come in green and white , black , gray, orange, yellow and purple hues are many nuances shades , jade is prized in China thousands of years to protect its power and healing required quality stones. It is also said to stimulate creativity and mental agility , and improve a person 's health. Product Details Yu is considered to help a person , but in contact with it . Yu said that to enhance the feeling of cool , purify thoughts, quiet the mind and induce a meditative state . It is also believed to cause frequent treatment jade stones become more beautiful sheen. According to the Chinese proverb , "Jade is cool because it comes from the nature of a clear mountain stream ." Science , said: " Jade is a cool feeling , because it is a non- conductor . Many Chinese people believe that a jade stone eventually become a part of life , its owner. Yu said that change color depending on its own aura. Or depressed, he or she may be a darker shade of jade . If we 're lucky, the stone may be lighter shade . A jade piece cracked or broken, its holder from a wicked shield, it is also considered Product Details Shape / model :/ Charm / Pendant Material / Gem : Emerald / fees attenuation Class / Type : 100% A grade / A type / A level Shipping / Handling Standard international shipping ( 10-18 days for delivery ) Refractive index: 1.66 to 1.67 Specific gravity: 3.33 to 3.34 Emerald colors and varieties are: emerald green , Luster: vitreous luster Surface texture : medium grain Condition: Excellent Accessories: adjustable rope necklace Freight Policy Shipping / handle fee is based on chargeable weight ( not net) fee , chargeable weight is listed in item description above , S / H rate tables listed below Different courier mail service , 4-8 days to USA, Canada, UK, Australia , S / H fees and other counties : EMS Standard international shipping : within 10-18 days worldwide below 2kg package. S / H fee package over 2 kg in other countries different than the U.S. Registered Mail ( free online tracking number ) All our packages will be shipped by registered mail with online tracking number , I'm sorry , we do not send packages unregistered . 100% Satisfaction Guaranteed If you are not completely satisfied with our products , please email us and receive a full refund within seven days from the date of your return . No restocking fee will be charged .