购买戒托时如何保证裸钻的安全性?

　　zenyangmaizuanjiecaihuasuan?rujin，luozuandingzhiyichengweirenmengouzuandezhuliuqushi，yinweidanmailuozuanzaimaijietuodezongchengbenyaobizhijiedaodianlimaichengpinzuanjieyaohuasuanhenduo。danshi，womenzaiweiluozuanmaijietuoshixuyaojiangluozuansongdaoshangjiajinxingxiangqian，qijianzuanshihuijingguohenduorenshou，neime，ruhebaozhengxiangqianguohoudezuanshihaishizijiyuanlaideneikezuanshini?

　　goumaijietuoshiruhebaozhengluozuandeanquanxing?xiaobianrenweiyousanzhongfangfakebaozhengmaijietuoshijinliangbaozhengzuanjiedeanquanxing。

jingdianhuangguan/18kbaijinjietuo

　　diyi、meikegiazuanshishangmiandouyouleishemabianhaode，zheigehenduoxiaofeizheyeshizhidaode，xiangqianhaojietuodezuanshiyeshikeyizaigaobeifangdajingxiamiankanbianhaode，suoyiqujiezhideshihoukeyiyaoqiushangjiachakanyixiashifouyuniyuanlaidezuanshileishemaxiangfuhe;

　　dier、buyaobaluozuanhejietuofenkaidianmai。yilaishiqudianlizuoxiangqianshihenduodianjiadouhuiyaoqiujiaochuewaidexiangqianfei，erlaiyaoshiliantongjietuoyeyibingdaomailuozuandedianlimai，jietuoyekeyidazhede;

　　disan、qukoubeihaodeshangjiaxuangoujietuo。yigehaodezuanjieshangjiashibaozhangxiaofeizhequanyideguanjian。

　　goumaijietuoshiruhebaozhengluozuandeanquanxing?zenyangquedingxiangqianhaodehaishiyuanlaideneikezuanshini?ruguogiazuanshidehua，chakanqileishemabianhaoshifoufuhejike，ruobushidegiazuanshidehuazuihaoquyuanluozuanshangjiajinxingxiangqianhuozhequkoubeihaodeshangjiajinxing，zheiyanghuigengyoubaozhengxie。