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.
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