hrd证书和gia证书哪个好？

       zuanshizhengshushixiaofeizhexuangouzuanshishiguanzhudezhongdian，youqishiguojishangdequanweizhengshugengshishenshouguanzhu。zaiguonei，duoshuxiaofeizhelejiezuiduodeshigiazhengshu，bingjiangqizuoweiyejiequanwei，erzaiyixieouzhouguojiachangjiandechulezheileizhengshuzhiwai，haiyouhrdzhengshu。neime，hrdzhengshuhegiazhengshunagehaoni？xiamianjiuyiqilailejieyixiaba。

       hrd证书

       名称：比利时钻石高阶层会议联盟（Hoge Raad Voor Diamont）
       成立时间：1973年
       成就：hrd是世界上第一个通过国际标准组织认证的钻石实验室机构，所以他们的钻石鉴定结果具有极高的可信度。
       鉴定特点：hrdzhengshuduizuanshidejingdufenjijuyouquanweixing，duiqiegongpingjiaxizhifenjishangyousuoqianque。duizuanshideqiegebilvyezuolefeichangxiangxideceliang，bingzaizhengshuzhongtixianchulai。jinghrdzhengshujiandingdezuanshijibenneng90%tongguoguoneijiandingjigouderenke。

       gia证书

       名称：美国宝石学院（Gemological Institute of America）
       成立时间：1931年
       成就：GIA是全世界最权威的珠宝鉴定所，现下国际上沿用的4C标准就是由gia制定的。
       鉴定特点：giazhengshuduizuanshimeiyixiangfenjidouyouquanweixing。giadazhenggengyouguanyuzuanshixiaciweizhijileixingdexiangguanmiaoshu，fangmianxiaofeizhegengxiangxidelejiezuanshi。

       hrd证书和gia证书哪个好

       giahehrddoushiguojibijiaoquanweidezhengshu，hrdzhengshuzaioumeiguojiayongdebijiaoduo，ergiazhengshuzaiyazhouguojiabijiaoshouxiaofeizherenke。zhiyuhrdzhengshuhegiazhengshunagegenghaoyixiemeiyoubiaozhundaan，meizhongzhengshudouyougezidetedian，bingqieduiyuputongxiaofeizheeryan，zheileiguojiquanweizhengshuwulunnazhongdoujishourenke。buguoconggenbenshanglaishuo，giashiguojishanggengzaokaishizhidingzuanshi4cbiaozhundejigou，shijiezuanshixingyedejigoujiancebiaozhunyehuibutongchengdudicankaogiajigoude4cbiaozhun，giazhengshuzaiyingyongfanweihejishubiaozhunfangmianyinggaigengyouyoushiyixie。

       买钻石选哪种证书

       chengranhrdzhengshuhegiazhengshuzaixingneirenshikanlaidoushikeyide，dangoumaizuanshideputongxiaofeizheyibangengyuanyixuanzegiazhengshu，xiaofeizhezairichanggoumaideshihou，yekeyijianggiazhengshuzuoweishouxuan。zaiguoneizuanshishichang，yiban30fenjiyishangdaxiaodezuanshidoukeyichujugiazhengshu，erdajiazaimaidaofudaizheizhongzhengshudezuanshizhihouyekeyitongguogiaguanwangjinxingchayan，quedingzhengshuneirongdezhenshixing。

       zaiwoaizuanshiwang，meiyike30fenyishangdezuanshibujinfuyougiazhengshu，haiketongshichujuyifenguoneiquanweibumenzhijianzhengshu，baozhengzuanshipinzhijizhenshixing。