【文题呈现】阅读下面的材料,根据要求写一篇不少于800字的文章。一位商人发现并买下了一块晶莹剔透,大如蛋黄的钻石,他请专家检验,专家大加赞赏,但为钻石中有道裂纹表示惋惜,并说:“如果没有裂纹切割成两块,能使钻石增值,只是一旦失败,损失就大了。”怎样切割这块钻石呢?商人咨询了很多切割师,他们都不愿动手,说风险太大。后来,一位技艺高超的老切割师答应试 [Topic Presentation] Read the following materials, according to the requirements of writing an article of not less than 800 words. A businessman found and bought a crystal clear, as large as egg yolk diamonds, he asked experts to test, experts greatly appreciated, but for diamonds in the said sorry for cracks, and said: “If there is no crack cut into two , Can increase the value of diamonds, but once the failure, the loss is big. ”" How to cut the diamond it? Businessmen consulted a lot of cutting division, they are unwilling to start, that the risk is too great. Later, a skilled old cutting division agreed to test