钻石重量与切工的关系

 　　zuanshidezhongliangshizenmelaihengliangdeni? duiyurucixiyoueryouangguidebaoshi，zuanshidezhongliang，zhijieyouzhongyao。tongshisihushizuijiandan、zuibuhuichuxianzhengyidewenti---zhijieyongdianzitianpingchengliang，jikededaobiaozhundaan!ruguodandancongshuzhishangkan，queshiruci。

　　danwentizaiyu：yongyushoushidezuanshidoushijingguojiagongdechengpinzuan，erjiagongguochengshikeyirenweizhangwode。jiujinggaiyangeanzhaowanmeibiaozhunzhixing，haishilveweifangkuanbiaozhuncongerdedaoyikelvedadechengpinzuanshi?henduoshihouqujueyushichangjiazhi。

　　xingyezhong，dangtaolunyikezuanshidejiazhishi，tongchangshiyiwanmeiqiegongweibiaozhun，duiyuqitajibiedeqiegonghuidaxiezhekou。zheishiyinwei：

　　(1)weiyouwanmeiqiegongcainengzuidachengdushangfahuizuanshidemeili。

　　(2)duiyuyikebushiwanmeiqiegongdezuanshilaishuo，jiangqidamochengwanmeiqiegong，yiweizhegengduodesunhao，yejiushizhongliangyidinghuibianxiao。

　　zuanshidedingjiatongchangshiyizhengshuduanweibiaozhun：1kelayixiatongchangyimei0.1kelaweiyigejiagebiaozhun，biru0.4kelahe0.5keladejiachabushi20%，ershi100%。yike0.98keladezuanshihe1kelazuanshidejiacha，yejuebujinjinshi2%。

　　dangnikandaoyikegoodqiegongdeyikelazuanshishi，suirandianzitianpingshangxianshide1.00，danyouyutadeqiegebilijuwanmeibiaozhunxiangchashenyuan，ruguojiangqianzhaowanmeiqiegongdamo，zuizhongkenengzhihuidedaoyike0.90keladezuanshi。suiranwomenbunengshiyong0.90keladedanjialaijisuanzheikezuanshidejiazhi，danxuyaozaiyikeladedanjiashanghenhendidagezhekou。

　　raner，jishizaidanjiashanghuibeihenhendikanshangyidao，danyinweiewaidedaole0.10keladezhongliang，jiagongshangyirankeyibijiangqidamowei0.90keladuomaixieqian。

　　suoyi，buyaobeitianpingdeshuzhimengbileyanjing。qingjieheqiegongjibielaizhongxingusuannidezuanshide“lilunzhongliang”。 xuyaotebieshuomingdeshi：

　　(1) 切工并不仅仅是直径。

　　qiegongshiweilerangzuanshikanqilaigengliang、gengcuican(huocai)，juebujinjinshikanqilaigengda!tashiduizhuduoshujudezonghepingjia，danchundezhijinghuozhetaimiandabiao，bingbuyiweizhewanmeideqiegong。

　　rushangtusuoshi，renheyigeshujudebianhuadoukenenghuiyingxiangdaozuanshidezhongliangheqiegong。yinci，danghengliangzuanshideqiegongshi，qingcanzhaozhengshudezonghepingjia。

　　liru：biaozhundezhijingjiehepianhoudeyaobu(zengjiazuanshizhongliang)hebijiaoqiandetingshen(jianshaozuanshizhongliang)，yiyangkeyidedaoyikebiaozhunzhongliangdezuanshi。danzheiyangdezuanshijuebushiexqiegongdezuanshi。

　　(2)相同切工标准下可能带来的重量差异可以忽略不计。

　　zuanshideqiegongbiaozhunshiduizhuduozhibiaofenbiejichufanwei，dangsuoyouzhibiaodouzaiyaoqiufanweineishicaisuandadaogaiqiegongbiaozhun。

　　mouxiangbiaozhun2%-3%dechabie，suodailaidejinjinshimouyigekemianbaifenzhijishenzhiqianfenzhijihaomidechayi。duiyuzuanshizongtizhongliangjihubuhuidailairenheyingxiang，erzaiguangxuexiaoguofangmianyejinjinshiliangduzengjiabaifenzhijihuozhehuocaizengjiabaifenzhijieryi，qichabiegengshirouyanwanquanwufafenbiandele。

　　ruguoninxiwanglejiegengduodeguanyuzuanshiqiegongfangmiandezhishi，qingguanzhuwomenzhenduiqiegongdexiangxidejieshao。