GIA证书有假?如何识别假GIA证书?

 　　giazhengshuyeyoujia?qishishuolai，giazhengshushiquanqiuzuiquanweidezuanshizhengshu，qiyoumeiguobaoshixueyuanbanfade，meiguobaoshixueyuanchengliyu30niandaidemeiguo。danzhenzhengdaguimofazhanshizai50niandai， giazongjieleqianrendejingyan，jiangzhiqianxingyelimianshangrenmenyonglaixuanshitoude“jingdu”“yanse”degainianxitongdetilechulai，bingyu50niandaizhengshitichule4cdeshuofa，weizuanshixingyedekuaisufazhanqidaolezhongyaodezuoyong。youcikejian，giazaizuanshizhubaoxingyedediwei，yijigiazhengshudequanweixing。

　　GIA证书防伪方法

　　giazhengshumuqiancaiyonglezhuduodefangweijishu，qizhuyaofenweiyixia6dian：

　　1、zhengshuwangluohedui。giajiandingdemeiyikezuanshidouyouzijidandudebianhao，giahuibazheikezuanshidesuoyoujiandingxinxidoushouludaotadeshujukulimian。erwomenzhixudenglugiadeguanwang，bingshuruzuanshidezhengshuhaohezhongliangjiukeyijinxingshujudeheduile，erjiagiazhengshu，yibanchaxunbudao。

　　2、yaobukezi。giatigongdeyixiangshoufeifuwu，jibajingqijiandingzuanshideduiyingbianhaoyongjiguangkedaozuanshideyaobu。xiaofeizhezhiyaoliyongzugoubeishudefangdashebei，suishidoukeyichakan。

　　3、shuiyin。jianggiazhengshuyingxiangguangyuanguancha，keyikandaogia logodeshuiyin，wucishuiyindezhengshu，weijiagiazhengshu。

　　4、weiyinxian。giazhengshuzhongjingdu、yanse、qiegongjibieliebiaobufendeshuxianshiyougiadeyingwenquanchengweiyinpincheng。10beifangdajingxiaqingxikebian。

　　5、giateshulanseyoumodiwen。zhengshuzhongfenjipingjiabufendediwen，caiyonggiateshuyoumopenyin，chengxianzuanshixingdediwen。

　　6、cong2000nian1yue1riyihoudegiazuanshijiandingshuyouxiafangdouyouyigeleishedefangweijuanbiao，zixiguanchazheigejuanbiaohuixianshi giadebiaozhiyuziyang，zheishigiaweilefangzhiweizaozhengshutezhiderenzhengjuanbiao，shixiaofeizhekeyirongyidibianbiejiagiazhengshu。

　　giazhengshuyongyouzhei6dianfangweijishu，zhizuojiagiazhengshuhaishihenyounandude，zhijiachengbengaole，xiangyingdejiazhengjiuhuishaole。neiruguoshizheiyang，giazhengshuruhezaojiani?

　　GIA证书如何造假?

　　duiyugiazhengshueryan，suiranqisheyouwangzhan， tigongxiaofeizheshuruzhengshuhaoma，jiukeliulangaizhengshudeneirong，dancifangfabingbunengquedingxiaofeizheshoushangdezuanshiyugaizhengshuweixiangtongdeyizu，cimoshifeichangjiandan，sihumeiyouewaideyanzhengfangshi，yincifanerweibufafenzitigonglexuduozaojiafangfa。

　　qishi，shichangshangsuoweidejiagiazhengshu，jiuzhengshubensheneryan，shizhende，shiyoumeiguobaoshixueyuanbanfade，zhishiwentishi，zaichushouhuanjieshang，jingyingshangzuoleshoujiao，suochushoudezuanshiyugiazhengshushangdezuanshibingbuyizhi。xiamiantongguoyigelizishuomingzuanshijingyingshangruhezuoshoujiao。

　　birushuowoshizuanshishang，shoushangyoujishikezuanshi，wohuizheimecaozuo：

　　diyibu：anzhaoxingzhuang、daxiaodengjiangxiangsideqiguilei。

　　dierbu：congmeileizhongtiaochuzuihaodeyike，birushidsevvs1deyuanzuan，qushenqinglegiazhengshu，shenqingchenggonghou，jitongzuxiangleisidezuanshikeshangxiangtongdebianhao，keshangtongyangdebianhao，erzheikezuanshikenengshihse、jingdushivs1le，peishangshenqingdaodegiazhengshu，jishixianledipinzhidezuanshi，maigaopinzhizuanshidejiage，erqiezhengshudoushizhende。

　　disanbu：liyongzheikegaopinzhizuanshiduoshenqingjigezhengshu，zheiyangjiukeyiweiqitadipinzhidezuanshishenqinghaozhendegiazhengshule。

　　xiaofeizheshoudaozheizhongjiagiazhengshu，jishiqianwanggiatigongdewangzhanyongzhengshubianhaochaxun，yedequenengchadaogaigiazhengshudecunzai，keshishoushanggoumaidezuanshiqueshidipinzhierbuzizhi。

　　如何防范假GIA证书问题

　　zaishichangshangsuiranyouyixiezhuanyejishurenyuankeyitongguojishushouduankeyibianbiegiazhengshushangsuobiaoshizuanshiyushiwuzuanshishifouweitongyike，danduiyuputongxiaofeizheeryan，zebijiaokunnan。yinciwoaizuanshiwangjianyidajia，yaoxuanzegaoxinyudepinpaiqugoumaizuanshi，yijianshaofengxian，erzuizhongjidefangfazeshijinxingfujian，xunqiuzhuanyejiandingjigoudebangzhu，zaiguoneiqiangliejianyixuanzengtc。