什么是Type IIa 钻石？

       Type IIa 钻石

       iiaxingzuanshijiushizhibuhandanheqitazazhide、chengfenfeichangchunjiedezuanshi。takeyitouguodayue225nm deziwaiguang。yibanbuxishoukejianguang，tongchangweiwusetouming。

       zuanshifenweiliangzhongtype，type ihetype ii，meizhongtypexiamianyoufenweiaheb。tongchangshiyiyiqilaicedingzuanshineibude"handanliang"deduoshaolaijuedingzheikezuanshishitype ihuo type ii，dabufendezuanshishishuyutype i，zheigebiligaoda98%。

       type iiadengjidezuanshi，yousangezhongdianbaohan:

       1.handanliang(1~2%zhijian)。

       2.budaodian。

       3.daorekuaiyiyiqilaicedingzuanshineibude"handanliang"laijuedingzheikezuanshishuyutype i huoshitype ii，dabufendezuanshishuyutypei，biligaoda98%。shaoshuzuanshihandanliangjidi,didaowufayixianyoudeyiqicechu,zheileijiushuyutypeiidezuanshi。tongchangwomenchengtypeiiadezuanshiwei"purest of the pure"。

       在拍卖会的时候不难发现，一般Type IIa 钻石的价格都会比较昂贵，Type IIa 钻石为什么那么贵？

       zaiziranjiezhong，zhiyoubudao2%dezuanshishuyuiixingzuanshi（buhandan，huozhehanyoukehulvebujidedan），iixingzuanshifenweiiiaxingzuanshiheiibxingzuanshi，iibxingzuanshihanshaoliangzazhipengyuansu。

       shaoshuzuanshidehandan(nitrogen)liangjidi，didaowufayixianyoudeyiqicechu，jiubeiguileiyutype ii dezuanshi。tongchangwomenchengtype ii adezuanshiwei"purest of the pure"，guizaizheiyileidezuanshitongchangweiwuse，danyeyoushaobufenchengxianchuhuang、zong、fenhong，shenzhishihongsede。

       wusedetype iiazuanshihuishiyikejuemeidezuanshi，qingchetouliang，wanquanbudaihuangse，biyibandingjided、flawlesshaiyaomeishangjifen。giadezuanshijiandingshudouhuifushangyizhangdiamond type note，ruguoshiyiketype iiadezuanshi，nadaozheizhangshenfenzhengming，zaiguojipaimaihuishangdeziranjiushenjiafeifan，qiangguidetianjiazhinengrangnijingtan。zaidaziranzhongtype iiadezuanshiyuezhan1-2%。

       ertype iibzuanshi，yeshihanjiweishaoliangzhijihumeiyoudedanyuansu，danshidaipeng(boron)yuansu，huixishouhong、cheng、huangdeguangxian，suoyizuanshihuichengxianchulansehuohuise，suoyoutianranlanzuandoushuyutype iib dezuanshi。zaizuanshizongliangzhongtype iibdezuanshiyuezhan0.1%。