All legitimate diamonds of any value have a "unique" passport, a certificate grading the four Cs – colour, clarity, cut and carat.
所有合法销售的钻石不论价值几何都有一张“唯一的”通行证，这张证书对钻石的四个方面进行评级——色泽、透明度、切割和重量（克拉）。
Our Stone Warehouse at the Port...? All cut-to-size orders, tiles and slabs, after standard grading, are put in wooden pallets.
关于港口仓库…所有瓷砖和地砖的切削订单，标准分级后，将被放进木货盘里。
Our Stone Warehouse at the Port...? All cut-to-size orders, tiles and slabs, after standard grading, are put in wooden pallets.
关于港口仓库…所有瓷砖和地砖的切削订单，标准分级后，将被放进木货盘里。
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