美国自然历史博物馆宝石主题展：美国巨钻

6yue10riqi，meiguoziranlishibowuguan（nmnh）zhengzaijinxingyigemingwei“great american diamonds”debaoshizhutizhan，hexinzhanpinwei4kekaicaizimeiguodedachicunzuanshi，qizhongbaokuoliangkechengpinzuanshiheliangkezuanshiyuanshi。

freedom diamond shiyike16.87ctzhenxingqiegezuanshi，weimeiguoqijinqiegehouchicunzuidadebentufaxianzuanshi，muqianxiangqianyuyimeisanshijiezhizhongyang。zheikezuanshiqiegeziyike28ctzuanshiyuanshi，1997niankaicaizikeluoladuozhoude kelsey lake kuangqu。

freedom diamond zuanshi

uncle sam diamond shiyike12.4ctzumulvxingqiegefenhesezuanshi，yongyouchusedejingdu。qiyuanshizhongda40.23ct，1924niankaicaiyuakensezhoude crater of diamonds kuangqu，weimeiguoqijinfaxianzuidadezuanshiyuanshi。

uncle sam diamond cengyidubeirenweixialuobuming，zuijinzaiyigesirenshouzangzhongzaiduchuxian，benciyeshizheikezuanshibangeduoshijiyilaidiyicigongkaizhanchu。

uncle sam diamond zuanshi

tongshizhanchudehaiyou2keweijingqiegedezuanshiyuanshi，junlaizimeiguoziranlishibowuguanguanzang：

canary diamond shiyike18ctdehuangzuanyuanshi，1917nianfaxianyuakensezhou，cengshuyumeiguokuangwushouzangjia washington roebling，bingyouqizijuanzengjibowuguan；

canary diamond zuanshiyuanshi

colorado diamond zeshiyike6.5ctzuanshiyuanshi，baoliuletianranzuanshidianxingdezhengbamiantijingxing。

colorado diamond zuanshiyuanshi

meiguolishishangjinyou2zuozuanshikuangtourushangyeyunying——akensezhoude crater of diamonds kuangquyu1919niantouchan，1926nianzhengshiguanbi，bingyu1972niangaijianwei“zuanshikengzhouligongyuan”xianggongzhongkaifang，muqianyoukeyileijifaxianchaoguo33100kezuanshi；keluoladuozhoude kelsey lake kuangquzeyou1996nianyunyingzhi2001nian。zheiliangzuozuanshikuanggongjichuchanshuwankeladezuanshiyuanshi。