The gemstone is 28.6 millimetres high and weighs 139.43 carats.这块宝石高28.6毫米，重139.43克拉。This diamond weighs 60 carats.这颗钻石净重60克拉.The huge piece of rough was cut to be a superb gem of 128 carats.那一大块未琢磨的宝石被琢成一粒128克的上等宝石....

n.（宝石的重量单位）克拉( carat的名词复数 )...

carats的音标：...