This is known to be a main source of diamonds, said Wetherall.

韦瑟拉尔说，众所周知，这是钻石的主要来源。

I think you might be mixing up Wetherall and Newton.

【mix】我想你可能是把韦瑟罗尔和牛顿弄混了。

The Lucapa company searches for underground rock formations called " kimberlite pipes." This is known to be a main source of diamonds, said Wetherall.

卢卡帕公司在搜寻被称为“金伯利岩管”的地下岩层。韦瑟尔说，众所周知，这是钻石的主要来源。

Wetherall also said that he does not know how much someone will pay for this diamond because of its color, but the value is expected to be very high.

韦瑟拉尔还说，他不知道有人会因为这颗钻石的颜色而花多少钱，但预计价值会很高。