钻戒上的CT是什么意思?

　　goumaizuanjieyoushihouhuifaxianjiezhishangyouyixiezifu，qizhongyouctshibijiaochangjiandeyigezifu，neimejiujingctshishenmeyisini?xiamianxiaobianjidajiaxiangxijieshaoyixia。

　　zuanjieshangdectshishenmeyisi?jinguanzaibutonglingyu，ctzheigesuoxiedaibiaolehenduoci，buguozaizhubaolingyu，ctshizhideguojitongyongbaoshizhongliangdanwei：kela，xiaoyu1keladezuanshizhongliangdanweizeyongfen(pt)biaoshi，zaictyuptzhongyougehuansuangongshiji：1kela(ct)=0.2ke=100fen(pt)。

妙恋/18k白金钻戒/0.21ct/SI/H/VG

　　zuoweizuanshidezhongliangyeshiyingxiangzuanshijiagedeyigezhongyaoyinsu，tongdengpinzhidezuanshi，zhongliangyuedayejiushictyueda，jiagebiranyegengjiaanggui，zuanshidezhongliangdao0.1kela、0.2kela、0.3keladengzhongliangdangcishi，qijiagejiushangleyigetaijie，jiageyuzhongliangdejihejishuchengzhengbi。

　　dangranzuanshidezhongliangyehuiyouxiangguandefenjibiaozhun，guojiaguiding0.2kelayixiadezuanshikebuzuofenjijianding，yuanyinshiguoxiaodezuanshizaijiancezhongyoukenengchuxianpiangaodewucha，eryiban30fenzuanshihuiyouxiangguanguojizhengshudechuju。

　　ctshishenme?youshihouctbujinjinshizhidezuanshidekelazhi，gengshiduiaiqingdekaolianghejianzheng，aiqingjiuxiangzuanshiyiyang，zhangxianzhegaoguiyuyongheng，meiyikuanzuanjie，meiyikeladoushiyoushengmingde，doushiwangziduigongzhudeaidechengnuo。dangnufangdehuaduoyushangshanyaodezuanshi，weiciyijianqingxinyebuweiguo。