GIA、AGS、EGL和IGI钻石鉴定机构之间的区别

1、GIA

giameiguozuanshixueyuan，shishijielingxiandezuanshixueshiyanshi，juyouzuigaopingjibiaozhunheyizhixing。yeshiyejiezuishouxinlaihezuiguangfanshiyongdepingjijigou。giazongbushezaijialifuniyazhoukaersibade，zaiquanqiuxuduochengshisheyoubanshichu，guyongle1400duomingkexuejia、jiaoyugongzuozheherenzhengzuanshipingjiyuan。

chulezuanshipingjiherenzhengwai，giahaitigongjiaoyufuwu，kaizhanshenruyanjiugongzuo，yigenshangzuanshilingyukuaisubianhuadejishu。

2、AGS

agsshizhimeiguozuanshixuehui，yeshimeiguodeshiyanshi（zailasiweijiasisheyouzongbu）。agsshiyanshiyiqikexuefangfahezuanshiqiegongpingjiyanjiuerwenming。 agsshiyong0-10dedengjilaipingguzuanshidetexing，erbushishiyongzimubiaopingjixitong，yi0weizuiyou，10weizuicha。

xianggiayiyang，agsyeyiqidaodebiaozhunhepingjixitongdeyizhixingerwenming。zaimeiguoshichangshang，agsshiyanshishigiazhihoudedierdayingyongdeshiyanshifuwu。tamenyetongguozaiyiselie、bilishi、yindu、zhongguohexianggangdebanshichuzaiquanqiugongguzijidediwei。

3、EGL

eglshiouzhouzuanshixueshiyanshidesuoxie。tashiyijiazaiouzhouchenglidepingjijigou，yongyoudaliangdequanqiuyewu，zailundun、bali、telaweifu、dongjing、yuehanneisibaodengdisheyoubanshichu。 eglyinweiyongyuzhongliangxiaoyu1keladezuanshidekaichuangxingzuanshipingjijishuerwenming。tamenyeyinweiyinruyongyuzuanshide“si3”jingdudengjierwenming，zaiouzhoushichangfenehenda。

4、IGI

igishiweiyubilishianteweipudeguojizuanshixueyuan。tamenshijishangshizaigiazhihoudeshijieshangdierdazhimingshiyanshi。shichangshangdedaliangpaoguangzuanshishijishangshiyouigipingjide，igizaiyazhouguojiafeichangshouhuanying。

虽然EGL和IGI在美国以外、特别是在欧洲和亚洲有更广泛的知名度，但并不受一些业内人士的推荐，他们的理由是：

eglheigishiliangjiajuyouxiangduisongsandepingjibiaozhundeguojishiyanshi。

tongchang，ruguotongyizuanshiyougiaheagspingji，zeegl/igizuanshidejingduheyansedengjizhishaoyaodazhe2-3ji。liru， egl/igipingweigsedezuanshikenenghuibeigia/agspingweiise。zuanshidejingdupingjiyeshiruci。dangtongguogiarenzhengshi，pingjiweis12dezuanshikenenghuichengweii1ji。

yinci，danggoumaizuanshixiangsiguigedezuanshishi，huifaxianeglzuanshibigiahuoagspingjidezuanshibianyi。

zongdelaishuo，guoneixiaofeizhegoumaizuanshishi，zuihaofuyougiazhengshuhuoguojianzhengshu，gengjucankaoxing。zhideyitideshi，xianzaiguoneibushaopinpaichushoude30fenyishangzuanshi，junketigonggia+guojianshuangzhengshu，shuangzhongbaozhang，genganxin。