Pi Yao is to build a strong and auspicious luck. Pi Yao to help someone who is having a bad feng shui because offend the Grand Duke Jupiter ( Jupiter ) person capacity. If a person moves to a new home after a series of bad luck , or just completed any renovation show Pi Yao at home. Jade or " jade" in Chinese is also known as "Heaven Stone ." There are many nuances of green , but differ in white, black , gray, orange, yellow and purple hues shades , Jade is a precious stone for thousands of years in China to protect the necessary powers and healing qualities . It is also said to stimulate creativity and mental agility , and improve a person 's health. Yu is considered to help a person in contact with it . Yu said that in order to improve the cool, clean feeling thoughts , quiet the mind and induce a meditative state . Some people think that leads to the growth of emerald often deal with more beautiful sheen. According to the Chinese proverb , "Jade is cool because it comes from a clear mountain stream nature ." Science , said: " Jade is a cool feeling , because it is a non- conductor . Many Chinese people believe that a jade stone , eventually became part of life, its owner. Yu said that changes color depending on its own aura. Or depressed, he or she may be a darker shade of jade . If we're lucky , it could be a stone lighter . From an evil shield broken or damaged , the holders of jade pieces , it is also considered Product Details Shape / model :/ Charm / Pendant Material / Gem : Emerald / attenuation fee 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 [Baby Size 10mm 22mm thick high 37 mm wide Emerald colors and varieties are: emerald green , Luster: vitreous luster Surface texture : medium grain Condition: Excellent Accessories: adjustable rope necklace Freight Policy According chargeable weight ( NW ) , transport / handle for charging , billing weight is listed in the item description , S / H ratio shown in the following table EMS: express mail service , cost 4-8 days to USA, Canada, UK, Australia and other places , S / H , and different other counties Standard Shipping: 10-18 days worldwide Pack 2 kg or less. Other countries S / H in the U.S. than in the cost of 2 kg bag of different Registered Mail ( free online tracking number ) All our packages are 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 immediately , and within 7 days to receive a full refund of the date of their return . No restocking fee will be charged .