GIA证书是什么|GIA是什么意思

 　　buxianghuangjin、baiyindengqihuochanpin，zuanshishiyouyidingdedengjiqufende，erpingjiaqidengjidebiaozhunjiushizuanshi4cjizuanshiyanse、jingdu、qiegonghezhongliang。zaixuangouzuanshishi，zuanshiyibandouhuipeibeiyizhangzuanshifenjizhengshu，laizhengmingqiquanweixing，qizhong，giazhengshugengyigaoquanweiduzhucheng。neime，giazhengshushishenme?giadoushishenmeyisini?

　　GIA是什么意思

　　giashimeiguobaoshixueyuandejiancheng，quanchengshigemological institute of america。 meiguobaoshixueyuan gemological institute of america dechuangbanrenrobert m. shipleyyu1931nianzaimeiguolos angeleschengligia，zuichushiyongyexiaojihanshoufangshixunlianzhubaoshangruhepinggupifajia，1953niangiazainew yorkchuanglilediyisuoshiyanshi laboratory，kaishiqianfazuanshijiandingbaogaoshu，erhouyouzaijiazhoushengtamengnika santa monica jilashiqushelilingliangge laboratory，zhengshimingchengweibaoshiyejiandinggongsi gem trade laboratory .inc (gtl)，gtllishuyugiazhuanzhijiandingbugujia。shishijieshangzuizaochuangliguojizuanshi4cbiaozhundequanweijiandingjigou，bingchenggongzheng、kexue、yanjindetaiduduisuojiandingdemeiyikezuanshidouyangeanzhao4cbiaozhunjinxingfenjipingding，yinci，juyougiajiandingzhengshudezuanshizaishijiezuanshijiaoyizhongshenshouguangdaxiaofeizhexinlai、tuichong，shimuqianguojijianzuiquanweidezuanshijiandingjigou。

　　GIA的地位

　　lishuyugiazhigtlshiyanshi，gia diamond reportshangxianshinaicihuizhang。dezuanshigongyingshangde beersyezanxugiajiangzuanshichanyeyuxiaofeizhejiandaqiliangxingdejiaoyibaozhang，dangranzhuyaoyuanyinshigiayongyuanzhanzaikeguanlixingshangbucengtingzhiyanjiuyubuduanpeiyurencai。giaguanwang：www.gia.edu，giazhengshuchaxun：www.gia.edu/reportcheck/

　　GIA的成就

　　zhijingiazaiquanqiuyiyoushisigejiaoxuejigou，tigongzhuanyedeyanjiu、xiaoshou、jiandingdengkecheng，peiyanggaosuzhidezhubaocongyerenyuan，yecuchenggiazaiyejieyoucichonggaodeshengyu，rangdazhongduitadexinlaiduyuzhuanyexingshizhongbaochilingdaoshijiedediwei。

　　GIA的专业

　　diamond grading report shiyifenzuanshipinzhifenxidecankaowenjian，bingfeiyibansuochengdebaodanhuoguojibaozhengshu，jinrigiafenjizhiduyuzhuanyeshuyuyichengweiguojizuanshiyuyan，xuduocongyerenyuanshiyijugtldezuanshifenjizhiduweibiaozhun。diamond grading report dezhenzhengyiyiweizuanshipinzhibaogaoshu，zhuyaodesidagongnengyou：

　　1. 辨别真假

　　2. 特徵记录

　　3. 品质分析

　　4. 估价参考

　　GIA的钻石证书主要分为3类

　　1：gia diamond grading  reporttongchangbeichengweigiadazheng，keyiweirenhezhongliangdezuanshichuju，buguotongchangduoweikelazuan，zheishiyifenxiangxidezuanshicanshubaogao，yibandouhuifuyouzuanshizhengfanmianfangda350beidejingdusumiaotu。kaolvdaojiguangkemashibaideanquanxing，yijijianglaizhongxinmoyaoweidesunhao。giadazhengbuyidinghuizaiyaoweishangdashangjiguangbianma。

　　2：gia diamond dossiertongchangbeichengweigiaxiaozheng，tongchangdouwei1kelayixiadexiaozuanshi，xiangbidazheng，queshaofangdadeneibusumiaotu，suoyoudegiaxiaozhengzuanshidouhuizaiyaoweishangdashangjiguangbianma。

　　3：gia colored diamond grading reportzhuanmenzhenduicaisezuanshisuochujudegiazhengshu，jibenneironghegiadazhengxiangtong，ercaizuandefenjixitongzeshiyijuzuanshiyansedexiangduinongdu。zaitedingdeguangyuanhebiduihuanjingzhong，shiyongjingtiaodebiduishizu，zhaochuzuanshidetezhengse(characteristic color)bingdingchuyansedengji。giacaiyongtedingdedengjishuyu，yijiedingyansewaiguandefanwei：faint, very light, light, fancy light, fancy, fancy intense, fancydark, fancy deep, fancy vivid。

　　下面我们就以最常见的GIADiamond Dossier 来开始我们的解读

　　1：giadelogo

　　2：gaigiazhengshudezhonglei(dazheng，xiaozheng，caizuanzhengshu)

　　3：证书编号;

　　4：riqi、jiguangyinji、zhuoxinghechicun;

　　5：4cbufen，zhongliang、yanse、jingdu、qiegong;

　　6：baoguoti、xiushidu、yingguangfanyingheteshukezi;

　　7：xianshizuanshidejingdu、yanseheqiegongzaigiadengjizhongdexiangguanweizhi;

　　8：zuanshiqiegongdeshujutu;

　　9：fangweishuiyin; qita：songjiangongsiguoji;zhengshushenming

　　GIA证书小附页具体详细介绍

　　laser inscription registry:：gia 13733089——jiguangbianma：gia 13733089

　　shape and cutting style：round brilliant——zuanshidexingzhuang：yuanxingmingliangzhuoxing

　　measurements：5.70-5.74 x 3.58 mm——chicun：5.70-5.74shizhizuanshizhijingdezuidazhihezuixiaozhi，3.58shizhenggezuanshidegaodu。

　　carat weight:：0.74——kelazhongliang0.74kela

　　color grade：g——yansefenji：gseji

　　clarity grade：si1——jingdufenji：si2

　　cut grade:：very good——qiegongfenji：henhao

　　clarity characteristics： crystal，feather——baoguotitezheng：jiejingti，yuzhuanglie

　　finis：——xiushidu

　　polish:：very good——paoguang：henhao

　　symmetry:：very good——duichengxing：henhao

　　fluorescence:：none——yingguang：wu

　　kanwanzheimeduoyingwenshujugujidouhuiyoudianyun，zheiyixiangxiangdeshujudoushishenmeyisini?huafendebiaozhunyoushishenmeni?youyoukenengchuxianshenmeyangdeshujuni?womenxianzaikaishijutifenxi。

　　首先我们从最明显的颜色来说

　　yansefenji(color grade)：d ejibai、f gyoubai、 hbai、 ijweihuangbai 、 klqianhuangbai 、 m、nqianhuang 。 giadebiseshishicongesekaishi，shimeiyoudsebiseshide， giashiyongdeshishangxianbisefa。shenmeshishangxianbisefani?ruguoyikezuanshideyansezaigiabiseshi e hebiseshifzhijian，neimezheikezuanshidedengjijiushie，erfeifse，giadebiseshidoushiqudezuanshideshangxian，ruguobiseshishif，yisijiushibiseshishifdengjilimianzuihaode，chaoguotade yansejiushiese，yicileitui，suoyigiadebiseshishimeiyoudsede，yinweibucunzaibidsegenggaodeyanse，chaoguotamendeesebiseshidejiushidsele。

　　zuanshiyansefenjishiyaozaizuanshibisedengxiajinxingde，danhuishoudaozhouweihuanjingguangxiandeyingxiang，ergiashiyongtamenzhuanlidezuanshixiang，shizaiyige4zhoufengbide，chunbaibeijingdexiangzili，liuyigekoujijiancerenyuanguance，guangyuanzaianzhuangzaizheigexiangzili，shouzhouweihuanjingyingxiangbijiaoxiao。

　　jingdufenji(clarity grade)：yejiushi10beifangdajingxiazuanshideneihanwudeduoshao。giajiangzuanshijingdufenweifl(wuxia)、if(neibuwuxia)、vvs1-vvs2(jiweixiaci)、 vs1-vs2(weixiaci)、si1-si2(xiaci)、i1-i2-i3(zhongxiaci)dengjibie，congqiandaohouyicijiangdi。 giabingbugulijiangqichengweixiaci，yinxiacijuyoufumianyiyi。

　　1kelayixiapeidaidegaoxingjiabishi vs1-vs2zheiyidang，danshiyaozhuzhongyanseheqiegong。 sideyekeyi，danshiyaoxuanzeyansedengjiheqiegonghaode，yongrouyanshiwufafenbiansijihevsjide，kanshangquyehenpiaoliang。chaoguo1keladezuanshi，ruguocongbaozhijiaoduqukaolv，yinggaijinliangxuanzegaojingduhegaosejidezuanshi。

　　duizuanshijingdudejianyi：(1)zuanshidejingduyuehaojiageyeyuegao。dangninxiwanggoumaigaojingdudezuanshihuozheyongyutouziyushouzangneimevvsjihuoyishangshizuishihede，danshibuyaohulveyanseheqiegongdejiazhi。dangninduizuanshidejingdumeiyouteshuyaoqiushi，xuanzevs,sijixingjiabishizuigaode，yongrouyanshiwufafenbiansijihevsjide，buguosi2degebiezuanshiyongrouyanzixiguanchayoushinengkandaobuqingxidebaoguoti。xiaciyeshizuanshideyibufen，shidaziranduimeikezuanshisuozuodedutebiaoji，bingqiezaijiaqianshangyeyoulemingxiandebutong，gequsuoxuba。

　　GIA净度分级标准

　　fl—ifjijingdu:"fl"=wuxiaji:meiyouneihanwuhuoxiacidedengji.yizhongwanquanwuxiacidezuanshi.if=neiwuxiaji：meiyouneizaidexiaci。zheizhongjibiejingdudezuanshizaizuanshidewaibuyouqingweidehuahen，danshineibuqueshiwanquanmeiyouxiacide。zheiliangzhongjingdujidezuanshidoushijiqixishao。qingzhuyi，guoneidezuanshifenjizhengshubuhuichujuifzheigejibie，zuigaojiushivvs。

　　vvs1—2jijingdu：jiweixiaji.vvs1jidezuanshijingdushaoweibivvs2jidezuanshijingduhaoyixie。

　　vs1—2jijingdu：weixiaji.vs1jidezuanshijingdushaoweibivs2jidezuanshijingduhaoyixie。zheixiezuanshisuojuyoudeneihanwuduiyurouyanshikanbudaode。jiageyaobigaodengjidejingdudihaojigedian。zheizhongjingdudengjidezuanshifeichangmeili，bingqiejiazhijiaogao 。

　　si1—2jijingdu：weixiaji.si1jidezuanshijingdushaoweibisi2jidezuanshijingduhaoyixie。zheigejingdudengjidezuanshideneihanwuzhuanyerenshiyongfangdajingcainengkandao。zheigedengjijingdudezuanshijuyoudutedejiagehejiazhi。

　　qiegongfenji(cut grade)：zhichengpinzuanshidebilihexiushidujinxingdepingjiaheshuoming，zhijieyingxiangzuanshideliangduhehuocaidezhengtixiaoguojiliangzhejiandepinghengguanxi，henzhongyao。giazhengshutixi zhong，excellentweiwanmei，very goodweihenhao，goodweilianghao，fairweishangke，poorweicha。goumailuozuanshihouliangzhebuyuyikaolv。qiegong(cut)ciyihengliangbiaozhun，shiweiyiyoujishurenyuandecaozuo，errangzuanshizhimeinenggouzaitishengdeyixiangzhongyaoyinsu。qiegezuanshimiandedaxiao、bili、duicheng(symmetry)hepaoguang(polish) dexiaoguozaijiashangqiegemianjiaodudebianhua，erchanshengdezuanshijingangguangzejiukeyiyouliangdu、huocaiheshanshuo。qiemozuilixiangdebiaozhunjiushibazheisanzhongzhibiaopingjunbiaoluchulai。

　　GIA是如何制定切工分级的

　　giatongguolexuduoniandeyanjiuyijijileishujufenxihou，tuichulexianjindezuiwanshandeyitaoqiegongfenjipingdingdexitongfangfa，giazuoweizuanshifenjidebizu，cong05niandituichuzuanshiqiegongfenjihou，jishichanghexiaofeizhedailailegengjiandanhexianeryijiandeduizuanshipingduanbiaozhun，giadeqiegongfenjihaixuyaojiezhuhenduozhuanmenyiqishebeicaikeyiwanchengde。

　　yinciextebieshi3exdegiazhengshudezuanshi，dequecongwaixinghaishizhengtiganjuedoushiwanmeide。 xiushidu(finish)：paomozuanshidezuihouyidaogongxudepingjia。fenweibiaomianpaoguangheduichengxinglianggeneirong。 paoguang(polish)zhuyaoshipanduanyouwumingxiandemolunwen(wheel mark)huoshaoshanghen(burn mark)decunzai。 duiyupaoguangdepingjiayou：excellentwanmei、 very good henhao、 good hao、 fair shangke、 poor cha。

　　duichengxing(symmetry)：qiegongpingjiadeyixiangneirong。zaipingjiashifenchengzhuyaoduichengxingheciyaoduichengxinglaipingjia，zhuyaoduichengxingquexianduizuanshidewaiguanmeiyouxianzhudeyingxiang，ciyaoduichengxingquexianduiwaiguanmeihejiazhiyingxiangbuda。

　　zhuyaoduichengxingquexianbaokuo：yaolenglunkuobuyuanhua、taimianpianxin、dijianpianxin、bozhuangyaolenghuoqingxietaimian。giazuanshifenjitixizhongfenweiexcellentwanmei、very good henhao、good hao、fair shangke、poor cha。 yingguangfanying(fluorescence)：yingguangfanyingshizuanshishoudaowailainengyuandeciji，tongchangzhibaoluyuziwaiguangxianxiashishi，suofashengdefanyingyanseguang。

　　yiqiqiangruofenwei：nonemeiyou、faintweiruo、mediumzhongdu、strongqianglie、very stronghenqiangdengwuji。qizhongfaintbingbujizaiqiyingguangfanyingyanse。

　　荧光小知识

　　zuanshiyouyingguangshiziranxianxiang，lansedeyingguangkeyizengqiangzuanshideliangbaidu，huangsedeyingguangkenengjiangdibaidu，suoyidaiyingguangdezuanshiyeyaokannayizhongguang。yikeyoulanseyingguangdezuanshihuibimeiyouyingguangdezuanshitongdengsejixiaxiandegengjiabaiyixie，chuhuoshilansedeguangmanghuigengduoyidian，danshizheiqujueyuzuanshidedaxiaoheyingguangqiangruo。guojishangquedingzuanshiyanseshi，shiyaokouchudiaoyixielanseyingguangzengbaidefenshude，yejiushiruguoliangkezuanshidoushifse，yikeyoustrong bluedeyingguang，doushitongyijiaguojijigoudezhengshudehua，feichangdadekenengjiushiyouyingguangdezheikezuanshideyuanlaiyanseyaogaoyulingyikemeiyouyingguangde。buguohuangsedeyingguangzhenghaoxiangfan。guoneideguojiabaoshijiancezhongxinbuduiyingguangjinxingfenjipinglun，dabufenxianzaishimianshangshoumaidezuanshiyebingmeiyoutebieshuoming，youguojizhengshudechuwai。

　　baoguotitezheng(clarity characteristics)：yixietianranzuanshideneibutezheng，birucrystalxiaojingti、cloudyunwuzhuangbaoguotideng，zheixieshizaixianweijingxiacaikejinyibuguanchadaodeneibutezheng，yonglaizhengmingzuanshidetianranxing。

　　zuanshineihanwudeleixing，youcrystal(jiejingti)、feather(yuliewen)、cloud(yunzhuangwu)、zhendian(pinpoint)、neibuwenli(neibushengzhangxianinternal graining)dengduozhongleixing。

　　ewaikezi(additional inscription)：yinindeyaoqiukeyijiangzuanshidepinpaimingcheng，huozixingfujiadesirenliuyanjuankezaizuanshiyaowei，yuzuanshijiandingshubianhaoyiqichengweizheikezuanshiduyiwuerdebiaozhi，ewaikeziruguomeiyoujiangbubeibiaozhu。