IDEX：一月，成品钻石价格指数破新高

2018-2021nian1yuezhijiandechengpinzuanjiagezhishutongbibianhuabiao：

yiyuefenjiagezhishudehuanbizhangfudadaole1.4%（ruxiatu）。zheishizuijinsannianlaizuigaodeshuzhi，chaoguolequnianba、jiu、shisangeyuede0.7%-0.9%。

yushanggeyuexiangbi，yiyuefenneisuoyouzhongliangqujiandechengpinzuanjiagedouchuxianleshangzhang。zuijinjigeyuedezhangdiezaibutongdezhongliangqujiandoushixiangduipinghengde，danyiyuefendeqingkuangqueyousuobutong。qizhong0.5ctqujiandejiageshangzhangle1.2%，2.0ctqujianshangzhang2.4%（ruxiatu）。

yuquniantongqixiangbi，jinnianyiyuefendegezhongliangqujianzuanshiyedouchengxianshangzhangzhuangtai。qizhongzuimingxiandeshi0.5ctqujian，zhangfudadao12.6%，buguo1ctqujianjibenyuquniantongqichiping，zhangfujinwei0.2%（ruxiatu）。

kaoliangdanyueneidebianhuaqingkuang，idexzuanshijiagezhishudebodongxingdayuzhiqiandejigeyue。yuemozhishutingliuzai122.08，danzai1yue22riqueyidushengzhi122.84（ruxiatu），suihouyiluxiajiang。

huiguguoqudeshiyunianli，2009-2011、2017-2018cengjingfenbiechuxianguomingxiandejiageshangzhang，danqitadabufenshijiandouxiangduipingwenhuochuyuxiajiangzhuangtai（ruxiatu）。

xiatushisuoyouzhongliangqujiandezuanshijiagezhishuzaiguoqusannianneidebianhuaqushi。zuihouyiduan（jijinnianyiyue）xianshidezhangfu，mingxianchaoguolequnianniandidezhuangtai。

zhengtilaikan，yiyuefen，zuanshixingyezaiyiqingqijiansuozuodenulihuodelebucuodehuibao。buguo，chengpinzuanjiageshifounengbaochijianting、weilainengfoujixubaochilianghaodeshichangxuqiu，haixuyaozuojinyibudeguanchaheyanjiu。