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所屬欄目：科技之光
所屬頻道：CCTV-10科教
年份：2011
展開全部
簡介：鑽石是天然礦物中硬度最高的一種物質十分稀少，探尋困難，據初步統計一顆鑽石從開採、分選、加工、分級、銷售，到最後賣到購買者手中約涉及兩百多萬人，鑽石的無比珍貴也就貴在其中。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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