钻石的重量与价格的关系

 　　zhongsuozhouzhi，zuanshidezhongliangdaxiaozhijieyingxiangzhezuanshidemeiguanhejiage，danwomenjintianqueshuodeshizuanshidezhongliangduizuanshijiagedegongshiguanxi。yinweihenduorendourenwei1kelazuanshidejiagejiushiliangbei50fenzuanshidejiage，congerdui1kelachanshengdeshijijiazhichanshenghendadeyiwen，neimezuanshidejiageshibushijiuzhendeyinggaizheiyangjisuanni?zuanshidezhongliangyujiageyouzheshenmeyangdeguanxini?kanguoxiamiandejieshixiangxindajiajiuhuihenqingchule。

　　zuanshidejiageyuzhongliangzhijianbingbushijiandandezhengxiangguanguanxi，eryuqizhongliangdepingfangchengzhengbi，jizhongliangpingfangyuanze，zheigeyuanzeduichengpinzuanhezuanpidoushiyong。suiranzheishizai200nianqiantichude，danzhijinrengjuyouzhidaoyiyi。qibiaodashiwei：zuanshijiage=(zhongliang)²×jichujia×shichangxishu。youcibiaoming4keladezuanshibingbushi4ke1kelazuanshidejiazhizhihe，henkenengshi1kelazuanshijiagede16beizuoyou，zheijiushiguojizuanshibaojiasuozunxundeyiju。gaopinzhizuanshidefuhechengduhenhao，dipinzhizuanshidefuhechengduzejiaocha。pingfangyuanzeyezhishiyigeculvedeguji，bingbushishengbanyingtaodejixiechengxu。

　　zhongliangduizuanshijiagedelingyiyingxiangshikelataijie，jijiagezaikelachuyouyijietishidezengzhang，yechengkelayijia。zheishiyouyudaduoshurenduizhengshukelazuanshidepianai，tongshiyeshishichangxuyaosuozhi，zu1kelahuoshaozhongyu1keladezuanshijiagebi0.95kelayaogaohenduo，kelayijiadefuduyuzuanshizhiliangyouguan，yibanlaishuo，gaopinzhizuanshidekelataijiehenmingxian，sejiweid，jingduweilcdezuanshiweili，0.50ct~0.69ctdezuanshibi0.46ct~0.49ctzheyijialvda51%，1ctyishangbi0.90ct~0.99ctdezuanshishangyang79%，erzhiliangchaderusejiweim,jingduweipdezuanshi，shangshuyijialvjinwei11%。

　　tongguoduizheixiezhishidelejie，womenjiunenggoumingbaiweishenmekelajiyuedadezuanshijiagebushifanbeizengzhang，ershiyoukenengjibeizengzhangdeyuanyin，congergengjiamingbaizuanshidedingjiayiju。