GIA钻石切工等级的六个注意事项

       gia zuanshiqiegongdengjishilejieyuanxingmingliangshizuanshideshanshuochengdudeguanjian，tongshiqiegongyeshizuanshi4cbiaozhunzhongzuifuzadeyigebiaozhun。xiamianwoaizuanshiwangweininjieshaoguanyuzuanshiqiegongdengjideliugezhuyishixiang，bangzhunintiaoxuandaogengwanmeidezuanshijizuanjie。

       1、钻石切工品质及其重要性

    ;   shichangshangzuiliuxingdezuanshishiyuanxingmingliangshiqiegongzuanshi。juzhuanjiaguji，zheizhongqiegongyangshizairujinchushoudesuoyouzuanshizhongdezhanbichaoguo70%。yuanxingmingliangshiqiegongdepinzhijuedinglezuanshideshanshuochengdu，zaijuedingzuanshijiazhide4cbiaozhunzhong，yixiezhuanyerenshijiangqiegongshiweizuanshipinzhizhongzuizhongyaode“c”。

       qiegongjingliangdeyuanxingmingliangshizuanshihuichengxianchucuicanduomudeguangmang，jishishenchuyongjiderenqunzhongyewufayangaidezuanshimeili，bingqiezuanshiqiegongdengjigaokeyishirenhulvebufenjingdu、yanseshenzhishizhongliangfangmiandequedian，zuanshiqiegongdengjihaihuitixianchushejihegongyidejingliangchengdu。yinci，lejiezuanshiqiegongdengjishitiaoxuanyuanxingmingliangshizuanshideguanjian。

       2、影响 GIA 钻石切工等级的因素

       weilekaifachuqiegongfenjixitong，gia huale15 niandeshijianjiangzuanshiqiegongcongjiyou (execellent) daobuliang (poor) fenwei 5 gedengjilaipingguyuanxingmingliangshizuanshideqiegongpinzhi。qizhuyaopingjiabiaozhunheyijushi：

       a.genjuliangdu、huocaiheshanguangshuxing，pinggucongzhengmianguanchashizuanshidewaiguanruhe

       b.pingguzuanshishejizaibaozhengjianguxinghezuiyouzhongliangfangmianzuodezenyang

 ;      c.yongyiduiqihemoguangzuanshikemiandejiyihuogongyidepinzhi

       gia zuanshiqiegongdengjigenjuqigeyinsujinxingfenlei：liangdu、huocai、shanguang、zhongliangbi、jianguxing、moguangheduichengxing。

       3、钻石闪烁和正面外观

       gia zuanshiqiegongdengjideguanjianyaosuzaiyuzuanshidezhengmianwaiguan — yejiushicongshangwangxiaguanchashizuanshidewaiguan，jiuxiangzuanshiyixiangqianzaidinghunjiezhishangyiyang。renmenxiaizuanshi，yinweizuanshiheguangxiandehudonghuichanshenglingrenyanhualiaoluandeshijuemeigan — feizhuanyerenshitongchangchengzhiwei“shanshuo”，danzheilimianyougengduoxuewen。

       dangnikandaozuanshineibuhewaibufanshedebaiguangshi，nikandaodeshi“liangdu”。ruguonikandaoguangxiansanshechucaihongdesuoyouyanseshi，nikandaodeshi“huocai”。shanshuoshijishangshi“shanguang”，yejiushizuanshihuoguangyuanyidongshi，zuanshineibufanshedeguangyuyinanquyudefenbu。xiaofeizheyanzhongde“shanshuo”qishishizheisangeyinsudezhengtishijuexiaoguo。

       4、钻石比例的重要性

       zuanshibilishiqiguanbuhedibudejiaoduyijiqikemiandexiangguanchicun，shiyingxiangzuanshizhengtizhengmianwaiguandeguanjianyinsu。zuanshibiliyouzhuyuyucezuanshinengchengxianzenyangdeliangdu、huocaiheshanguang。raner，gia yixiangzhongyaodeguanyuqiegongdeyanjiuchengguofaxian，meiyounayizubilikeyiquedingyuanxingmingliangshizuanshideqiegongshihaode。qishibutongbilidezuanshiyenengdadaotongyangdeqiegongdengji。zuanshikenengkanqilaibutong，biaoxianbutong，danrengnengduiguanchazhechanshengleisideyingxiang。

       5. 设计、工艺与 GIA 钻石切工等级

       zhengmianwaiguanjuedinglezuanshideguangan，ershejihegongyizefanyinglezuanshidezhizuopinzhi。shejiqianjiakenenghuijizuanshizengjiabubiyaodezhonglianghuojianguxingwenti。gongyichadezuanshizailiangdu、huocaiheshanguangfangmiantongchanghuibiaoxianqianjia。zaipingguzheilianggeyaosushi，gia qiegongfenjixitongkaolvdaolezuanshidewulixingzhuang、bili、zhongliangbiyijijiagonghemoguangkemianshidejiangxin。

       a.sheji

       shejizhideshijiagongguochengzhongdegegebili，zheijuedinglezuanshidewulixingzhuang，jutibiaoxianweibili、zhongliangbihejianguxing，qizhongzhongliangbishizuanshidezhongliangyuqipingjunyaoweizhijingdebizhi。yaoweizhijingyuzhongliangdebizhijiaoxiaodezuanshikanshangqubishejilianghaodezuanshigengxiao，yinweizhongliangdehendayibufendou“yinzang”zaizuanshidezhengtishenduzhong。biru，yaoweijiaohoudezuanshikenengkanshangqubucuo，danyaoweibufenyinzanglebubiyaodezhongliang。zheikenengdaozhixiaofeizhezuihoumaidaogengzhongdezuanshi，yincizaigoumaishizuihaoshizuanshidezhongliangbuyaochaoguoqizhengmianchicunkanshangqudezhongliang。

       yuanxingmingliangshizuanshidejianguxingshizhijiboyaoweikenengdaozhidesunhuaifengxian。zheiyangdeyaoweihuirangzuanshizaizhubaoxiangqianguochengzhongshenzhishipingshipeidaishijiyishousun。kaolvdaozuanshidechengbenjiqiqingganyiyi，zaigoumaideshihouzuihaobimianyaoweijibodezheileizuanshi。

       b.gongyi

       gongyimiaoshudeshijiagongzuanshishidejingxinchengdu，jutibiaoxianweizuanshidemoguangxiaoguoheduichengxing。moguangshizhikemianbiaomiandezhengtipinzhiheqingkuang。tabaokuoduimoguangguochengzhonghuopeidaiqijiandesuoyoubiaomiantezhengdepinggu。moguangduizuanshikemiandejingmianbiaoxianzhiguanzhongyao。

       duichengxingshizhizuanshichengpindexingzhuangyijikemianpailiehebujudezhunquedu。duichengdezuanshiyingnengchengxianjunhengdeliangdu、huocaiheshanguang。duichengxingchadezuanshizhanxianchulaideguangxianhudongxiaoguoqianjia，zheiyiweizhezuanshikenengkanshangqubianping。

       6、钻石切工等级评估标准

       giagenjuliangdu、huocai、shanguang、zhongliangbi、jianguxing、moguangheduichengxingpingguyuanxingmingliangshizuanshideqiegong，bingjiangzuanshiqiegongdengjifanweihuafenweijiyou (execellent) daobuliang (poor)。dengjiyouzuanshizaizheiqigeyaosuzhonghuodedewugezuidipingjijueding。huanjuhuashuo，ruguozuanshideliangduweibuliang (poor) dengji，neimezhengtiqiegongdengjizuigaozhinengdadaobuliang。moguangheduichengxingchuwai，zheilianggeyaosujiangshiyongbiaozhungiafenjideyitaofangfajinxingpinggu：birushuo，moguanghe/huoduichengxingdengjiweiyouliang (very good)dezuanshi，rengyoukenenghuodejiyou (excellent) qiegongdengji。

       zuanshiqiegongdengjiduiyuxiaofeizhegoumaizuanshiyoufeichangzhongyaodezuoyong，danwomenzaixuangouzuanshishirengbunengjiangqiegongzuoweiweiyixuangoubiaozhun，yingjiehezuanshideyanse、zhongliangyijijingdugongtongtiaoxuan。xiaobianjianyidajiazaixuangouzuanshishi，keyixunwenwoaizuanshiwangzhuanyerenyuanjinxingtiaoxuan。