钻石的品质好坏是否产地决定

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　　zuanshidepinzhihaohuaishifouchandijueding?qishi，zuanshidezhilianggenchandishimeiyouguanxi。nanfeizhishizuanshichanliangzuiduodeguojia，bunengshuonanfeidezuanshijiushizuihaode，renhekuangquchanchudezuanshidouyouhao、zhong、cha。shijiegedijunyouzuanshichanchu，yiyousanshiduogeguojiayongyouzuanshiziyuan，nianchanliangyiyikelazuoyou。chanliangqianwuweideguojiashiaodaliya、zhayier、bociwana、eluosi、nanfei。zheiwugeguojiadezuanshichanliangzhanquanshijiezuanshichanliangde90%zuoyou。zhuanjiaqiangdiao，hengliangyikezuanshipinzhidebiaozhunzhuyaoyousige，jizhongliang(carat)、jingdu(clarity)、seze(colour)heqiegong(cut)，yejiushitongchangsuoshuode“4cbiaozhun”。zheigebiaozhunyougia(meiguobaoshixueyuan)chuangli，shimuqianzaishijieshangbaokuozhongguozuiweizhuliudezuanshipingjiabiaozhun。zuanshiyouguojirenkedebaoshixuejiajinxingjiandingbingqianfadisanfangdulideyijianshu，jiyu4cbiaozhun，jierjuedingzuanshijiage。

　　zhuanjiachengzuanshishiyuansutandechunjingdanzhi，tadehuaxuechengfenfeiwending，henshaohanqitazazhiyuansu。yinerbulunshichanzinanfei，haishilaizieluosi、aodaliya、boziwanei、namibiya，shenzhizhongguodewafangdian，qizuchengjiegoudoushixiangtongde。womenzaixuangouzuanshideshihou，haishiyinggaibazhongdianfangzaizuanshide“4c”pinzhifenjishang，cainengfaxianchengxinruyidezuanshi。zhuanjiatixingxiaofeizhe，erkeyiyangdaxiaozhongliangyiyangdezuanshi，tamendejiazhishikantamenbenshendejingduyuqiegongheyanseerhengliangde，youyinzuanshideguangmangduyikaoqiqiegongertixianchulai，suoyiqiegongdehaohuaizhijiehuiyingxiangleyikezuanshidejiazhi。zuanshijingguozhuomozhihou，hennanfenbiantadeyuanchandi,danyiqiegonglaishuo，muqian4dazuanshijiagongzhongxinshigongrenzuihaode，meiguoniuyue、bilishianteweipu、yindumengmai、yiselietelaweifu.shangmiansuoshuonanfeichuchandezuanshiyuanshihenduojuyoubaoshijibie，danzuanshijingguoyuanshizhuomochulaide，qiyuansushitandechunjingdanzhi，tadehuaxuechengfenfeichangwending，henshaohanqitazazhiyuansu，qipinzhiyuchandiwuguan。

　　zuanshidepinzhihaohuaishifouchandijueding?qishi，jiandandishuo，zuanshiyueda、yuechunjing、sezeyuetitou、qiegeyuejingque，zuanshijiuyuezhengui。zuanshihetadechandimeiyoutaidaguanxi。zuanshidengjizunxunyangede4cbiaozhun，jizhongliang，yanse，jingdu，qiegong。zhiyaojuyouquanqiuzuiquanweidemeiguobaoshixueyuangiazhengshuhuoguojiazhubaoyushizhiliangjianyanzhongxindengtczhengshujiukeyifangxingoumai。zuanshidepinzhihaohuaishifouchandijueding?xianzai，keyikendingdegaosunin，zuanshidezhilianggenzuanshichandishimeiyourenheguanxi。yixieshangjiatongguobiaoshi“nanfeizuan”“bilishizuan”deng，yicilaitigaozuanshishenjia，wudaoxiaofeizhe。ruyoushangjiazixuzijidezuanshishi“nanfeizuan”junkeyaoqiuqichujuxiangguanzhengming，laibaozhangxiaofeizhedehefaliyi。gengduoyouguangoumaizuanshixinxikeyidengluwoaizuanshiwanglejiezixun。