从证书看HRD钻石与GIA钻石的不同之处

　　hrdzuanshigengiazuanshiyoushenmebuyiyang?zuanshijiandingzhengshushimeikezuanshideshenfenzheng，biaomingzuanshijiandingdelaiyuanjigouhejiancebiaozhun，womenzuishuxideshigiameiguobaoshixueyuanzuanshizhengshu，giazuanshijiandingzhengshushishijieshangzuiquanweide，yeshiyingyongzuiguangde，hrdzuanshijiandingyeshiyizhongzuanshijiandingjigou，neihrdzuanshihegiazuanshixiangbiyoushenmebuyiyangni?

　　yaoxiangzhidaozheigewentidedaan，shouxianyaolejie“shenmeshihrdzuanshizhengshu?”。hrdweibilishide“zuanshigaojiecenghuiyi”(hoge raad voor diamant)，youguojizuanshilishihui(idc)xieshangzhidinghrdguojixingzuanshifenjibiaozhun，hrdzuanjiejiandingzhongxinjianzhao“idcguize”jinxingjianding。bilishizuanshigaojiecengyihuishiguanfangchengrendaibiaozhebilishizuanshishangmaoxingye。qizongbuzuoluoyushijiezuanshizhongxinanteweipu。

　　hrdzuanshizhengshuchumiaoshuzuanshijiezhidewaixing(shape)，chicundaxiao(measu-rements)jizhongliang(weight)zhiwai，tebieduiqiegebizuogengxiangxideceliangbaogao，jizaizaizhengshushang，ruzhuomian(table)、yaoweihoudu(thin)、guanbugaodu(cr. height)jidibushendu(pavilion- depth)。

HRD钻石等级证书

　　zaihrdzhengshuneideshuzijilushang，fugailetoumingwangzhuangjiaozhiyifangzhitugai，neizaihuowaizaitezhizaizhengshuneijibaozhuangzhishangdoutiezhejingduzhitu biaojixiangxijihao。hrdxitongshiyongxianweijingceliangneihanwu，jingdudengjishiceliangjieguoyuhrdjingdufenjibiaobiduiweijichu。dengjidaihaochulc(loupe clean)hepjiwai，yugiaxiangtong。

　　hrdzuanshizhengshudetedianshangmianyijingjieshaodehenqingchu，neitayugiazuanshizhengshuyoushenmequbieni?qishi，giashiguojishangzuizaozhidingzuanshi4cdejigou，quanshijiedezuanshijiancebiaozhunyeshigensuigiade4cbiaozhunxiangfuhede，zhishizaixijieshangyousuoqubie，hrdyingyongdezuanshijiandingfanweimeiyougiazheimeguang，jishubiaozhunshanggengiayeyousuochaju，jinguanhrdzuanshizhengshuyebeiquanqiusuorenke，danshigiazuanshijiandingzhengshuhaishishouxuandezuanshizhengshu。