钻戒换款划得来吗？钻戒换款划不划算

jiandanlaikan，zuanjiehuankuanxiangdangyubuhuafeitaiduojiunengyongyouyimei“xin”zuanjie。danzhongsuozhouzhi，huangjinkeyiyijiuhuanxin，yibanxuyaokouchuyidingdechajiaheshouxufeiyong。qishizuanjiehuankuanyeshitongli，xuyaozhifuyidingdechajiaheshouxufei。

钻戒换款划不划算？keyigenjuyaogenghuandekuanshilaikan。“jiu”jietuozaihuankuanshikeyidikouyibufenfeiyong，zhuyaoshizaijinshufangmian，ruguojinshudehuishoujiagegaoyixie，keyigenghuanyimeijiandankuanshidejietuo，bingyongzheibiqianzhifu“xin”jietuodegoumaifeiyong。

danruguohouxugenghuandekuanshibijiaoshehua，biruneixiehaoxiangkuandejietuo，jiequanshangtongchangxiangqianhenduoxiaosuizuan，zheiyangdejietuojiagebisuquanjietuoguihenduo，huankuanshijibendoushiyaofuyibibuxiaodechajiade，youshihaiburuzhijiemaiyimeixindezuanjie。

keyicankaozheigezuanjiehuankuanbuchajiaguize：huankuan=sunhao+gongfei+duochujinjia

xiangbiyushichangxinchaodezuanjiekuanshi，yixiejingdiankuanzuanjiegengnaidezhushijiankaoyan，birudifunishejideliuzhuazuanjie，jibianlijingbainianyebuxiandeguoshi，yiranlingwushurenweizhixindong。

xuyaozhuyi，bingbushisuoyoupinpaidouzhichizuanjiehuankuan，zaigoumaizuanjieshikeyilejieyixiazhubaodiandeshouhouguize，yijihuankuanshoufeibiaozhundeng。