而那些雄心勃勃的较小的矿业公司，如南非的佩特拉钻石公司，也期望自己挖掘钻石。
Ambitious smaller miners, such as South Africa's Petra Diamonds, are also looking to stick their picks in.
佩特拉钻石公司近日宣布，他们在南非库利南钻石矿发现了一颗很有可能是迄今为止最大的蓝钻石。
Petra Diamonds announced its discovery of what may very well be the largest blue diamond to ever be unearthed at the Cullinan mine in South Africa.
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。
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.
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