钻石的单位是什么单位？

       zuanshiyikelaweidanwei，meikelafenwei100fen，yikeladengyu0.2ke，suoyiyike 0.50keladezuanshixiangdangwu50fen。

       kelayici，yuanzixilayuzhongdekela「keration」，zhizhangjiaodoushu（huodaozidou carobseed），shiyizhongcongdongyazhouguangfanpujidaozhongdongdezhiwu。youyuqiguozibeichengwei juyoujinhuyizhidezhongliang。yikelajidengyuyilixiaojiaoshuzhongzidezhongliang。 zailishishangzhei zhongguoshijiubeiyonglaizuoweicedingzhongliangdefama，jiuerjiuzhibianchengleyizhongzhongliangdanwei，yongta laichengguizhonghexiweidewupin。zhidao1907nianguojishangjiangqishangdingweibaoshidejiliangdanwei，yan yongzhijin。

       guojizuanshishichangshang，zuanshizhongliangdanweitongchangshibaoliuxiaoshudianhouliangweide，disanweishifengjiujinyi ，erbushisishewuru。guoneijiancejigouxiguanbaoliusanwei，yejiushishuoruguoyilizuanshizhong liangwei0.599ct，guojizhengshushanghuibiaoming0.60ct，guoneizhengshuzewei0.599ct，jijiatongchang huiyishifenweiyigedanwei：20-29fen，50-59fen。duiyuzhengshuweidefenshu，zuanshidejiage zhijiancunzaizhe“kelayijia”xianxiang，jishizhiyou1fenzhicha，99fenyu1ctdezuanshijiaweiye xiangqushenyuan。

       关于钻石dejiage，xianzaiyiban0.2kelamai4000yuanzuoyou；0.3kelamai7000yuanzuoyou，zuanshizhongliangyuedayuegui。lingwaizuanshijiagehejingdu、yanse、qiegongdengyeyouguanlian。

       xuyaozhuyideshi：

       1．zuanshidedengjiyuegao，zhongliangduijiagedeyingxiangyueda。

　   2．对临界重量的钻石尤其明显。如：30分，40分，50分，1克拉等。
 
　   3．xiaoyu0.2kelaguojiabiaozhunbufenji。0.2dao1kelajikeanluozuanfenji，yekeanxiangqianzuanshifenji，dayu1keladezuanshibixuanzhaoluozuanfenjibiaozhunjinxing4cxiangxifenji。