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所属栏目：科技之光
所属频道：CCTV-10科教
年份：2011
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简介：钻石是天然矿物中硬度最高的一种物质十分稀少，探寻困难，据初步统计一颗钻石从开采、分选、加工、分级、销售，到最后卖到购买者手中约涉及两百多万人，钻石的无比珍贵也就贵在其中。收起
《科技之光》 20111025 永恒之光（上）
《科技之光》 20111026 永恒之光（下）
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