GIA证书怎么查询真伪？gia钻石证书上需要注意的几点

zaixuangoudafenshuzuanjieshi，yibanxiaofeizhedouhuiyaoqiuyougiazhengshu，danjibianyougiazhengshu，yebuyidingnengbaozhengzuanshidepinzhihezhenjia。giazhengshuyeyouzhenjiazhifen，haikenengyudao“taozheng”qingkuang。

duiyufudaidegiazuanshizhengshu，keyizhuyaoguanzhulianggefangmian：

一、鉴定证书真伪

giazhengshuyou2zhong，1kelayishangshidazheng，1kelayixiashixiaozheng，danjiandingfangshidouyiyang

1. giaguanwangchaxun

①saozhengshushangdeerweima，shuruzhengshubianhao，chulaidebaogaoyingyuzhengshushangdeyiyi。

2. chakanzhengshufangweibiaozhi（duiyingxiatuchakan）

①logo水印

②giazhuanshuleishefangweibiaoqian

③zheitiaohengxiantouguofangdajingkeyikandaocmyksedian

④wenduganyingfangweibiaoqian，yudaoyidingwendu，huiyouhuisebianweibaise

二、看证书和钻石是否对应

1. 查验钻石腰码

giajiandingdezuanshidadouhuizaiyaolengshangleishebianma，zheigebianmayingyuzhengshubianmayizhi，keyiyong10beifangdajingguancha，zhongdianchakanzuanshiyaomashangde“gia”sangezimushibushishuangxianloukongziti，“shuzi”shibushidanxianziti。

2. chayanzuanshitexingyuzhengshubiaoshishifouyizhi

youxie1kelayishangdezuanshikenengbingmeiyouleishebianma，neimexiangyaochakanzhengshuhezuanshishifouduiying，keyicongxiamianjidiankan：

①zhongliangshifouyizhi：zhengshushangdezuanshizhongliangyingyuzuanshishijizhongliangyizhi。

②xiacishifouyizhi：yongfangdajingchakanzuanshineihanwu，yingyuzhengshushangdeneihanwubiaoshituyizhi。

注：

bingbushisuoyouzuanshidouyougiazhengshu，yiban20fenyixiadezuanshifenjinanduda、jiazhidi，henduoshimeiyouzhengshude，danruguozuanshizai20fenyishanghaimeiyouzuanshi，jiubujianyimaile。

xiangyaomaidaozhenzuanhaozuan，kanzhengshushiyifangmian，xuanduipinpaiyeshifenzhongyao。jianyizuihaozaiwoaizuanshiwangdengjingyingshijianjiaozhangdezhengguishangjiadingzhizuanjie，dingzhizuanjieshiyaojidesuoyaoquanweizhengshu，shoudaohuohoukeyidaoguojianbumenjinxingfujian。