如何选择异形钻？马眼显长、椭圆显大，小白也能懂

yixingzuanshipingjiedapochangguidezaoxing、kanqilaigengxiandadeshijuexiaoguo，chengweizuanshishichanglideremenxuanze。buguoyixingzuanshimeiyoutongyidepingjiabiaozhun，xuyaokaolvdediangengduo，biruqiegetedian、xingzhuangshifoushiheziji，haiyouyusuanzenmefenpei。jintianjidajiaquanmianfenxiyixiaruhexuanzeyixingzuan。

xianhuazhongdian：yixingzuanshimeiyouyuanxingzuanshineizhong“3ex”（qiegong、paoguang、duichengxing）depingji，zhiyouchangshuode“2ex”，jipaoguangheduichengxing。

选异形钻，关键看4个参数

shouxianshizhangkuanbi，tajuedingzuanshikanqilaishixiuzhanghaishiyuanrun。

birutuoyuanzuanxuan1.45-1.55dezhangkuanbi，“gezidan”xiaoguozuimingxian，mayanzuanxuan1.75-2.55de，nenglazhangshouzhixiantiao。

ranhoushitaikuanbi，yingxiangzuanshideliangduhehuocai，xiangdianxingzuanxuan55%-60%detaikuanbi，huocaihuigengjizhong，zumulvzuanxuan60%-65%de，tongtougangenghao。

quanshenbiguanxidaozuanshigoubugoubaoman，haiyouzhongliangshibushidouyongzai“daoren”shang，birushuidizuanquanshenbidiyu57%huixiandanbo，leidienzuanchaoguo65%huixianbenzhong。

zuihoushiqiemianshuliang，qiemianyueduotongchanghuocaiyuefengfu，biruleidienzuanyou70geqiemian，bigongzhufangde57geqiemianhuocaiqiang30%。  

六种常见异形钻，这么选就对了

xianshuoshuotuoyuanzuan，tazuidadeyoushishixianda，tongyangkelashuxia，shijuemianjibiyuanxingzuanda15%-20%，tebieshihexiangzhuiqiu“gezidan”xiaoguodepengyou。

xuantuoyuanzuanyaozhuyijiancha“lingjiexiaoying”，jiushizuanshizhongjianhuibuhuiyouanqu，youzhidetuoyuanzuananquyaoxiaoyu10%，zuihaorangshangjiaji360°shipin，jingtaitupianrongyiyangaianqu。

canshufangmian，zhangkuanbi1.45-1.55zuiheshi，taizhaihuixianxizhang，taikuanhuixianaipang；taikuanbi53%-58%nengpinghengliangduhehuocai，quanshenbi58%-64%，buranyaomexianboyaomexianxiao，yaoshiyusuangou，dapeiweixiangjietuonengrangzuanshikanqilaigengda。  

ranhoushishuidizuan，yejiaolixingzuan，yiduanyuanyiduanjian，jiyoutuoyuanzuandexiandagan，youduolefendutedeliuxianmei。

xuanshuidizuanyaozhongdiankanjianduan，yidingyaoxuanyuanrunbaomande，taijiandehuaxiangqianshirongyisui，zuihaoshi“fashijianduan”，bianyuanzuoleweihuchuli。

haiyaozhuyiyaobuyoumeiyouaoxian，aoxianbujinrongyijihui，haiyingxiangxiangqianlaogudu，keyikanzhengshulide“zuanshibilitu”querenyaobushifoujunyun。

canshushang，zhangkuanbi1.50-1.75shijingdiankuan，quanshenbi57%-65%，richangpeidaiyaozhuyibaohujianduan，bieheyingwupengzhuang，meibannianjianchayicixiangqianzhuadelaogudu。  

leidienzuanbeichengwei“huocaizhiwang”，tadeqiegehentebie，jiehele“mingliangshi”he“jietishi”liangzhonggongyi，70geqiemiannengranghuocaichengtongxinyuanfangshezhuang，bigongzhufangzuandehuocaiqiang30%。

xuanleidienzuankeyigenjuxihaoxuanfangxinghuozhangfangxing，xiangyaozhengfangxingdehua，zhangkuanbibuchaoguo1.03，kanqilaihendaqi，shihezuodanzuanjiezhi；xiangyaozhangfangxingde，zhangkuanbi1.11-1.40，jianguyouyahegexing，zuoshoulian、diaozhuidouheshi。

lingwai，leidienzuandeduoqiemiannengzheyanxiaozazhi，jingduxuandaosi1jiyishangjiugoule，yusuanyouxiandepengyoukeyikaolvfangkuanjingdu，danyaoquerenmeiyourouyankejiandexiaci。  

gongzhufangzuanshixingjiabihengaodexuanze，tasimiandengbian，taimianmianjibitongkelayuanxingzuanda10%-15%，erqiezhongliangdaduojizhongzaitaimianshang，kanqilaigengxianda。

xuangongzhufangzuanyaozhongdianjianchataimian，bunengyouheidian、zhenzhuangzazhi，jianyixuanvs2jiyishangjingdu，yaoshixuansi1，yidingyaorangshangjiajigaoqingzhengshu，querenzazhibuzaitaimianshang。

lengjiaoyeyaozhuyi，zuihaoxuan“fashijianduan”，zuoleyuanrundamo，richangdaiburongyigouguayifu。

canshufangmian，zhangkuanbi1.00-1.05jiejinzhengfangxing，liluoyoudaqi，henshihezhichangnvxing，sigelengjiaohaixiangzhengzhezeren、yongqi、qingganhezunchong，yuyiyehenhao。  

mayanzuanshilazhangshouzhide“shenqi”，xiuzhangdechuanxingshejinengzuidachengduxiushishouzhixiantiao，youqishiheshouzhipiancuhuopianduandepengyou。

xiangqianmayanzuanyoujiqiao，xiangrangshouzhikanqilaigengzhang，jiuxuannanbeixiangxiangqian（jianduanchaoshanghuochaoxia）。

xiangdidiaojingzhiyidian，biruzuoduijiehuodiedai，jiuxuandongxixiangxiangqian（jianduanchaozuohuochaoyou）。

canshushang，zhangkuanbi1.75-2.55zuiheshi，quanshenbikongzhizai60%zuoyou，nengbaozhengguangxianchuantou，buhuiyouanqu。

haiyaozhuyiyaobuhoudu，zhengshuli“girdle”biaozhuyaoshi“thin”jiyixia，jiurongyibenglie，jianyixuan“medium”huo“thick”de。  

zuihoushizumulvzuan，tazoudeshigaojitongtoufeng，caiyongjietishiqiege，dingbushizhangfangxingtaimian，sizhoushitixingkemian，xiang“zuanshidejingzi”yiyang，nengqingxizhanxianzuanshineibudejingdu。

zhengyinweizheiyang，zumulvzuanduijingduyaoqiubijiaogao，zuihaoxuanvsjiyishangde，buranzazhihenrongyikanchulai。

xiangqianfangshituijianzhuaxiang，nengjianshaojinshuzhedang，gengtuxiantongtougan。

canshufangmian，zhangkuanbi1.30-1.40shijingdianbili，taizhaihuixianfangzheng，taikuanhuixianxiazhang。

quanshenbi60%-65%，jinengbaozhengtongtou，youbuhuirangzuanshixiandedanbo。

购买异形钻的避坑技巧

shouxianshizhengshu，yidingyaoxuangiahuongtcde，zheilianggejigoudeshujuwuchaxiao，buhuiyou“shangjiazizhizhengshu”neizhongxinxibuzhundewenti。

ruguomaideshigaojingduzuanshi（vvsjiyishang），zuihaozaiyaoyifenngtcxiangqianzhengshu，querenxiangqianhouzuanshimeisunshang、canshumeibeigai。

buguanmainazhongyixingzuan，douderangshangjiaji360°gaoqingshipin，jingtaitupiankanbudaolingjiexiaoying、yaobujunyunduzheixieguanjianxinxi，shipinnengduojiaoduguancha，gengfangxin。

nadaozhengshuhou，haiyaohedui“zuanshibilitu”he“jingdufenbutu”，querenzhangkuanbi、quanshenbifuheyuqi，zazhibuzaitaimianhuojianduanzheixiexianyanweizhi。  

ruguoshirichangtongqindai，yusuan1-3wanyuan，zhongdiankanqiegongcanshu（zhangkuanbi、quanshenbi），jingdukeyifangkuandaosi1（danyaowutaimianzazhi），yansexuanh-ise，kelashu0.5-0.8ctjiugoule，buyongzhuiqiutaida，shiyongweizhu。