钻石重量中克拉和分是什么意思?

 　　shuoqizuanshizhongliang，henduorenlimajiuhuixiangdaotadedanwei——kelahefen，neime，yikelashiduozhong?kelahefenshishenmeyisi?zuanshizhongliangweishenmeyikelaweijiliangdanweini?

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　　kelahefenshishenmeyisi?zheimemingchengshizenmelaide?“kela”zheiyizhongliangdanweilaiyuanyugudaiyindudedelaweidazu，dangdirenzaichengzhongshishiyongyizhongjiao“jiaodoushu”dezhongzi，kela(carat)zuoweibaoshidezhongliangdanwei，qiyuanyuouzhoudizhonghaibiandeyizhongjiaodoushudezhongzi。jiaodoushuyouyigeqitedexianxiang，wulunzhangzaihechu，tasuojiechudeguoshi，meikedezhongliangjunyizhi。tamendezhongliangzai195—205haokezhijian，keyishuoxiangchawuji。suoyizailishishangzheizhongguoshijiubeiyonglaizuoweicedingzhongliangdefama，jiuerjiuzhibianchengleyizhongzhongliangdanwei，yongtalaichengguizhonghexiweidewupin。zhidao1907nianguojishangjiangqishangdingweibaoshidejiliangdanwei，guiding1kedengyu5kela，1keladengyu0.2ke，dengyu200haoke，dengyu100fen，zheigeguizecongeryanyongzhijin。

　　zuanshizhongliangzhongkelahefenshishenmeyisi?1kedengyu5kela，1keladengyu0.2ke，dengyu200haoke，dengyu100fen!