And these are the places that the diamond cutters attack first.

这些是钻石切割者首先攻击的地方。

It's easy to understand why the owner of the Jonker diamond went to the best diamond cutter he knew. Kaplan, the cutter, studied the diamond for twelve whole months.

这就不难理解为什么这块杨克钻石的主人要去找他所知的最好的钻石切割师。切割师名叫卡普兰，他花了整整12个月来仔细研究这颗钻石。