Jade is considered to be able to help a person, but to improve it. Cool jade, purify the mind, quiet and induced a meditative state of mind. It is also considered to cause frequent handling jade more beautiful luster. According to the Chinese proverb." Jade is very cool, because it comes from a clear mountain "natural science, said:" the jade is a cool feeling, because it is a non conductor. Product details Type / types: bracelets, bracelets Material: natural jade / cost / gemstones crafts The standard of international shipping (10-18 days) A class / type: 100 / level Refractive index: 1.66 ~ 1.67 Gravity: 3.33 - 3.34 Color: light green, emerald Size: about 38*11*8 (suitable for all adjustable belt,). Weight (g / CT): ~ 46.35 g / 231.75 carat. Gloss: Glass luster Surface structure: in grain Condition: good Shipping policy Therefore, the standard international shipping 10 - 18 days to send you Yes, we provide a tracking number, so you can keep track of all the information. Registered mail All of our package online tracking service number will be sent by registered mail delivery