Diamond is a natural diamond as raw materials, a variety of styles and formed by manual cutting, machining, pondering the decorations, collections, exhibits. It is the most hard substances, have a certain form, generally eight surface body. Brilliant, a riot of colours, the nature of output is extremely rare. Four criteria, namely: natural diamond output, durable, beautiful, rare.
正在翻譯中..
![](//zhcntimg.ilovetranslation.com/pic/loading_3.gif?v=b9814dd30c1d7c59_8619)