Jade is believed to be able to help a person, just contact with it. Enhance the feeling of cool jade , purify thoughts, quiet the mind and cause a meditative state . It is also considered processing, stone emerald 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 . Measure the width of your palm , and find the right size bracelet The width of your bracelet size = size of the palm of the hand ( please measure the widest point ) Your palm width 62 mm - 66 mm in diameter 50mm52 mm bracelet size = The size of your palm width 66 mm - 70 mm = 52 mm diameter bracelet - 54 mm 70MM width of your palm - a diameter of 75 mm 54??????bracelet size = - 56 mm 74 mm wide palms - 79 mm = 56 mm , diameter 58 mm strap size Your palm width of 78 mm size - bracelets 82 mm = 58 mm diameter - 60 mm 86 mm bracelet size = Diameter 60mm - 82 mm mm wide palm-sized 62 The size of the palm of a width of 86 mm - 90 mm = 62 mm , diameter 64 mm strap size Your palm size = 64 mm strap width 90 mm -94 mm diameter - 66 mm The size of your palm width 94 mm - 68 mm - 100 mm diameter = 66 mm strap size Custom diameter 55 mm -62 mm in size Please select your size : ( Please enter your message size checkout select "Seller" ) Product Details - Shape / Type: Bracelets - Material / Gem : Jade / Jade - Shipping / Handling : Standard international shipping ( 10-18 days for delivery ) - Level / Type : 100 A / A type / A level - Refractive index: 1.66 - 1.67 - Specific gravity: 3.33 - 3.34 - Colors and varieties: dark green color, hardy varieties - Weight (g / ct ) : ~ 66 g / 330 kt - Luster: vitreous luster - Surface texture: medium grain - Condition: Excellent