权威度
GIA ★★★★★
IGI ★★★★★
HRD ★★★★★
GIA创立于1931年,远在二战之前,是非营利机构,经费由珠宝yejierenshijuanxian,zhuyaofuwufanweizaizhubaodingjizhuanyezhishidejiaoyuyuyanjiu。ouzhoudeigishizai1975nianqianhoukaishijinxingzuanshijiandingde,yinianzhihou,hrdyekaishicongshizheixiangfuwu。
证书特色
gia sixingban★★★★☆
igi wukexing★★★★★
hrd sixingban★★★★☆
giazhiyoudaxiaoliangshi,xiaozhengshubufuzuanshixiacidexiangxitubiao,dazhengyoujingduxiacitu,bingqiehuixiechuxiacidemingcheng。xianzaiguoneidabufenshixiaozheng,zhiyoujibende4cheqiegongbilizheiyangdewenzixinxi。igidezhengshushiyangjiaoduo,chudaxiaozhengshuwailingyoukapianshi(bianyuxiedai)、xinyongkashi(buyisunhuai)、sufengshideng,neirongxiangtongdanshikeyiyingduibutongxuyao。lingwai,giaheigidezhengshuzhizuojingliang,igizhengshugengshimeiyifendoushishougongzhizuo。
hrddejiushaochayichou,kegongxuanzedeshiyangbuduo,zhizhijiaobo,qimeiguanchengduyeburuqianerzhe。
证书历史
gia wukexing★★★★★
igi sanxingban★★★☆
hrd sanxingban★★★☆
jibenshangzaiguojizhengshudezuanshixinxibufen,huijiangzuanshidedaxiao、zhongliang、xingzhuang、qiegongzhibiaodengjinxingxiangxidishuoming,erqieduiyumiaoshudejingqueduyaoqiujiweiyanke,qiegongdengjiyehuicongjigefangmianjinxingmiaoshu,eryansejingdudengji,gengshijingquedaomouyitedingjibiede。lingwai,zhengshushangyekeyifujiazuanshineibuxiacidexiangxitubiao,zuoweijingdupingjidefuzhu。
giazaipingdingzuanshijingdushangshedingzuigaodengjiweifji(wanmeiwuxiaji),yuweirensuoshuxideif(neibuwuxiaji)jidequbiezaiyu,tabujinyaoqiuzuanshineibuwuxia,erqiezuanshibiaomianyebunengyouhuahenshenzhipeidaihenji,zheiyangzaizuanshixiangqianjiagonghepeidaizhongjiuyaojiweixiaoxin,fouzedongzhejiuzaochengzhengshudengjidebufu。danshigiadeqiegongdengjifinish(zongtixiushidu)xiazhifenpolish(paoguangdu)hesymmetry(duichengdu);zuanshiyaobuqingkuangyibanzhitigongchicunermeiyoumiaoshu;erduizuanshidijianqingkuangzebuzuomiaoshu。qitazuanshixijiechicunyilaitubiaoshi,bijiaozhiguan。
igizhengshushiyongdejingdumiaoshuzuigaoweiifjibie,yiquebaozhengshuxinxidewendingxing。igiduiyuzuanshiqiegongxinxizuiweijingzhun,finishxiangxiaxifenweisymmetry、polish、proportion(zuanshigebufenbili)sanxiang,duizuanshidijian、yaobudengxijiemiaoshuyehendaowei。
hrdzhengshushiyongjiaoduomiaoshuxingyuyan,liruzuanshiyansedebuyongd、e、fdenghuafen,ershiyongru“white”“slightly tinted white”dengduanyu,qienyixiasejijiubuzaiqufen;lingwai,hrdyouyizhongzhendui1kelayixiazuanshidekuaijie“zuanshijiandingzhengshu”,xiangduiqi“zuanshizhengshu”,neirongxinxidoubijiaojianlve。
证书防伪
gia sixingban★★★★☆
igi wukexing★★★★★
hrd sixingban★★★★☆
guojizhengshudechengbenkendingshibijiaogaode,danshibijingwuyousuozhi。giadejiandingjiageshisanjializuigaoangde,yinweiqisuoyoujiandingbumendouweiyumeiguobentu,wuxingzhonghuafeizailaihuiyunshushangdechengbenyepoweikeguan,jiandingsuoyongshijianchengbenyehuihengao。erigideshiyanshiquanqiufenbujiaoduo,chaoguoshige,chuqujiandingfeiyongbulun,yunshuchengbenheshijianchengbenyehuijieshengdeduo。
hrdyeyouyugiatongyangdewenti。dangran,ruguoxuanzehrddejianyibanbenzhengshu,shiyanshicaozuohuikuaihenduo,danshixiaofeizheyaozaixinxilianghejingquedushangzuochurangbu。
证书式样
gia sixingban★★★★☆
igi wukexing★★★★★
hrd sikexing★★★★
国际证书都采用严格的防伪手段,每一张证书上都有各机构的防伪标记,网站的证书号码查询也可以证明证书的真伪。特别是IGI提供的塑封服务,将钻石裸石和鉴定结果一起封存,证书和钻石从这一步起就不会分离,并且封存处一经开启即无法复原,确保钻石zhidaokehushouzhongdouheqizhengshuxiangduiying。
igi、giajunkejinxingwangluochaxun;hrdzanshibunengtigongwangluochaxun。
成本核算
gia sanxingban★★★☆
igi sikexing★★★★
hrd sikexing★★★★
总评
gia sanshierxing igi:sanshierxingban hrd:ershijiukexing
其他注意事项
当你仔细的看完了上述的内容,相信你应该对选购钻石,有了大致的了解。如果你对钻石4Czhongdemougeyinsutebiekanzhong,neimejiuyinggaixuanzeduizheigeyinsumiaoshutebiejingzhundezhengshu,ruguoduiqitajigeyinsubingbuyaoqiutaigao,neimezaizuanshigoumaichengbenshangyekeyijiangdiyixie。
lingwai,xuanzezhengshushiyeyouxieqiaomen,biru,daiyoubaxinbajianzhaopiandezuanshizhengshuzhiyouigikeyichuju;giabuhuizuozuanshixiangqianshoushidezhengshu;hrdzhengshushangdebufenshuyubutong;hrdde“zuanshijiandingzhengshu”shiqijianyibanbendengdeng;zhengshuqianfadedidiandengdengdoushidiyiyankandaozhengshuxuyaoshibiededifang。
congxianzaideshichangshanglaikan,youyugiajinruguoneijiaozao,suoyizhimingdujiaoda,danshizaiyixiedachengshirushanghai,qitaliangjiadezhengshuyijingyuelaiyueduole。jirankexuanzexiangyijingduoleqilai,dajiakeyigenjuzishenduizuanshizhengshugegefangmiandebutongyaoqiuzuochuhengliang。
zuihoutixingdajia,tigongzhengshusuiranshizhubaoshangjiadeyiwuhezeren,danxuyaojidedeshi:suoyouzhengshudechengbendaozuihouqishidouhuijirunindegoumaijiagenei。suoyicongmouzhongchengdushanglaishuo,xuanzezhengquedezhengshushixuangouzuanshiyixianghenzhongyaodebufen,zhiyoutiaoxuanlekexindugao、xingjiabidezhengshu,cainengbaozhengzuanshigoumaidefangxin、heshierqiewuyousuozhi。
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深圳市罗湖区翠竹街道贝丽北路金展珠宝广场二十层20F-05/06
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