Jade is considered to be able to help one person , just touch it. Feel cool jade strengthen and purify the thoughts, quiet the mind , resulting in a meditative state . It is also considered jade processing, stone growth tends to lead to more beautiful luster. According to the Chinese proverb , "Jade is cool because it is essentially clear mountain stream ." Science "magazine said , Jade is a cool feeling, because it is a non-conductor . Product Details - Shape / bracelet / charm - Material / GEM : natural white jade / - Standard international shipping ( 10-18 days delivery ) - Level / Type : 100 / A Type / A Level - Refractive index: 1.66 - 1.67 - Specific gravity: 3.33 - 3.34 - Color: white, emerald - Size: about23 carved beads, each bead . 8 mm * 8 mm ( height ) * 8MM ( adjustable band , suitable for all people ) . - Weight ( g / CT): ~ ~ 46.35 g / 231.75 kt - Luster: vitreous luster - Surface texture : COFCO - Condition: Excellent Shipping Policy According chargeable weight ( NW ) , transportation / handling charges , above the S / H speed table lists the weight of the items listed in the bill EMS Speedpost service , 4-8 days to USA, Canada, UK, Australia and other countries , S / H charges , as well as other counties in the same Standard shipping: Package less than 2KG 10-18 days worldwide . S / H in the U.S. than in other countries more than 2 kg packing. Register ( free online tracking number ) Registered mail tracking number online , All our packages will be shipped , I'm sorry , we do not send packages unregistered . 100% Satisfaction Guaranteed If you are not completely satisfied with our products , please send us an e-mail immediately and return within seven days after the date of receipt for a full refund . No restocking fee will be charged .