How can you define diamonds?

September 18, 2008 6:03am CST
Diamonds are beautiful and valuable gemstones,but the process of becoming diamonds is anything but glamorous.They starts as common carbon-black,dirty,and combustible. But through countless years of intense heat and high pressure deep within the earth,they become pure and strong.
1 response
• China
18 Sep 08
i'm not skillful at distinguish diamonds. i only can distinguish the worst fakement from better quality.