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<title>周生生珠宝 - 结婚钻戒、钻石首饰、铂金、珍珠、黄金、18K金、迪斯尼金饰礼品尽在周生生</title>
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国际标准是以10倍放大镜厘定钻石的净度，内含物的大小、多寡和位置决定钻石的<a href="http://www.chowsangsang.com">净度</a>，亦影响其价值，内含物越小钻石的价值越高。 由于每颗钻石都是独立形成，故内含物的大小和位置均各有不同，这些内含物就如指纹般代表每颗钻石的独特性。因此有人形容没有两颗钻石是完全相同的。 <a href="http://www.chowsangsang.com">克拉</a>是钻石的重量，一克拉等于0.2克，或100份。钻石的体积越大，其罕有度越高，价值亦越高。 钻石分为无色钻石和彩色钻石两种。大多数无色钻石都带微黄色，黄色越淡越佳，冲量无色钻石由D至Z，D级为最珍贵。而彩色钻石则有粉红色 ﹑绿色及蓝色等，价钱可以十分昂贵。

<P><FONT face=Arial color=#0000ff size=2><A 
href="http://www.chowsangsang.com/new/chi/index.htm">周生生珠宝 www.chowsangsang.com</A> | <A 
href="http://www.emphasis.com">点睛品 www.emphasis.com</A> | <A 
href="http://eshop.chowsangsang.com/">周生生网上购物店 eshop.chowsangsang.com</A> | <A 
href="http://www.338.net">周生生证券 www.338.net</A> 
| <a href="news.htm">最新消息</a> 
| <a href="jewellery.htm">珠宝知识</a> 
| <a href="diamond_clarity.htm">钻石净度</a>
| <a href="diamond_colour.htm">钻石色泽</a>
| <a href="diamond_cut.htm">钻石车工</a>
| <a href="diamond_main.htm">钻石</a>
| <a href="diamond_shape.htm">钻石形状</a>
| <a href="gold_main.htm">黄金</a>
| <a href="jade_clarity.htm">玉净度</a>
| <a href="jade_colour.htm">玉色泽</a>
| <a href="jade_cutting.htm">玉车工</a>
| <a href="jade_main.htm">玉</a>
| <a href="jade_treated_jade.htm">仿玉</a>
| <a href="pearl_main.htm">珍珠</a>
| <a href="pearl_spec.htm">珍珠</a>
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