为何有些钻石大小相差无几，价格却差很多？

kela（ct）youchengka、kala，shizhuyu、zuanshidengbaoshidezhiliangdanweiheguijinshudechundubili，cong1907nianguojishangdingweibaoshijiliangdanweihoukaishishiyong。yinweizuanshidemidujibenshangxiangtong，yuezhongdezuanshitijiyueda，yincizaiyanse、jingdu、qiegongdengjigecanshudoujinsideqingkuangxia，zuanshidejiageyeyuegao。zaizuanshidezhengshushang，zuanshidezhongliangdoujingquedaoxiaoshudianhoudedisanwei。

1kela = 200haoke = 0.2ke

zhongliangzai1kelayixiadezuanshiyong“fen”（point）zuoweijiliangdanwei。

1kela = 100fen

shenmeshikelayijia？tongdengpinzhidezuanshi，suizhezhongliangdezengda，qijiazhichengjihejishuzengzhang，shijiagechengtaijiezhuang。zheiyangdexianxiangjiujiaozuokelayijia。

zuanshidejiage=keladepingfang×keladejichujia

jiandanlaijiang，zuanshimeifeng5、10dengzhengshudezhiliangshijiagehuimingxianshangsheng，jishizhiyouyifenzhicha，yikeladejiageyeyaoyuanyuangaoyu99fen，shizhende“shizhihaoli，chazhiqianli”。kelayijiayebujinjinzaizhengkelazuanshizhongchuxian。1kelayixiadezuanshi，liru50fen、30fendengdeng，yehuichuxianzheizhongqingkuang，zhishimeiyou“zhengkela”yijiafududa。

ciwai，zuanshidepinzhishiyingxiangkelayijiashangshengfududezhuyaoyinsu，pinzhiyuegaodezuanshikelayijiafuduyueda。biruyouxiexiangtonggaopinzhide99fen、1kelazuanshi，mingmingzhichale1fen，jiagequegaolejin50％，zheijiushidianxingde“kelayijia”。

钻石“克拉溢价”是怎么产生的

kelayijiaqiyuanyuguojijinrongjiedeguanli。zuanshijubeidiyadaikuandegongneng，danzaioumeiyinxingli，zuanshidediyadaikuanzhizhendui1kelayishangyongyoudazhengshudezuanshi。1kelayixiadezuanshishuyusuizuan，bujubeizheixiangzizhi。yinci，1kelachenglezuanshijiagedefenshuiling，zaizheidaomenjianneiwai，zuanshidejiagehuifashengtiaoyuexingdebianhua。

消费者如何应对“克拉溢价”

genjukelayijiadetexing，30fen、50fen、1keladengdoushizuanshilinjiedian。

ruguoshixiangmailairichangpeidai，keyigoumailinjiedianyixiadezuanshi。bijingcongshijuexiaoguolaikan，1、2fendezhongliangchajubingbunengyongrouyanfenbianchulai。liru，tongpinzhide48fenhe50fendezuanshikanqilaichabuduo，danqianzhedejiagebihouzhebianyihenduo。

danruguoshimailaishouzangdezuanshi，jiulingdangbielunle。linjiedianshangxiadetongdengpinzhizuanshishouzangjiazhichabiehenda，zhengkelashudezuanshizaibaozhixingyushengzhixingfangmiandoujuyouyidingyoushi。yinci，tongyangpinzhixia，goumaiyongyushouzangdezuanshiyingjinkenengxuanzedayixiede。