according to the miningweekly.com of august 31, five large gemstones were found in south africa and they weigh up to 507 carats。

　　these gemstones were found in a mine in cape town, south africa. the largest stone is a 136-carat clean white octahedral one which is as large as an orange. and there are other four stones, weighing 58 carats, 69.26 carats, 82 carats and 104 carats respectively, said james duncan , spokesperson of petra diamonds company。

　　国外网站 "the miningweekly.com" 8月31日报道，南非发现了5颗超大钻石，总重达507克拉。

　　佩特拉钻石公司发言人詹姆斯•邓肯31日表示：“这些钻石是在南非开普省一处矿井内发现的，最大的一颗重达136克拉，是洁白的八面体钻，犹如一颗橙子一样大。另外四颗钻石分别重58克拉、69.26克拉、82克拉和104克拉。”