最稀有的订婚戒指：蓝钻之戒

       蓝色是天空和海洋的颜色，代表着平静与安谧，也象征着和睦与忠诚，对于订婚钻戒来说是一个完美的色彩。

       tianrandelansezuanshifeichanghanjian，jinzhanquanqiuzuanshichanliangde0.1%，zuizhumingdechandiweinanfeikulinan（cullinan）zuanshikuang。zheiyangdezuanshineibuhanyoupeng（boron）yuansu，nenggouxishouhong、cheng、huangsedeguangxian，yincichengxianchushenlanzhiqinghuise，beidingyiweitype iib xingzuanshi。lanzuanyongyouqitarenhelansebaoshidouwufaqijideyingduhehuocai，yeshizuiangguidexuanze。

       依据色泽的深浅，蓝钻大致可被划分为四个等级：Fancy Vivid Blue（鲜彩蓝）、Fancy Intense Blue（浓彩蓝）、Fancy Blue（彩蓝）和Light Fancy Blue（淡彩蓝）。

       由于产量稀少，蓝钻一般采用更保重的梨形、枕形、榄尖形qiege，jishaokeyikandaohaoliaoyanzhongdeyuanxingqiegelanzuan。zuoweidinghunjiezhidezhushi，lanzuanzhouweiyibanxiangqianwusezuanshihuoshixiaokefenzuanzuoweidianzhui，zuiduojiandeshejixingshiweizhushiliangcegexiangqianyimeiwusezuanshi。

       Double Halo 蓝钻戒指，from Tiffany & Co. collection
       zhushiweiyike fancy vivid lanzuan，zhong2.51kela，bojinjietuocaiyongquanzuanshizhuangshi。

       蓝钻订婚戒，from Graff collection
       zhongyangxiangqianyikelanjianxingqiege fancy deep lanzuan，zhong2.07kela，liangcegexiangqianyikexinxingqiegezuanshi。

       蓝钻订婚戒指，from Tiffany & Co. collection
       zhizuoyu1900nian，zhushiweiyike3.54keladelanjianxingqiegelanzuan，dadao fancy blue jibie，jietuoshangxiangqianxiaokezuanshizuoweizhuangshi，zongzhong0.35kela。

       Art Deco 蓝钻戒指，from Tiffany & Co. collection
       zhongyangxiangqianyike1.20keladezhengfangxingqiegelanzuan，dadao fancy greenish blue jibie，zhouweixiangqianzongzhong2.09keladezhangjietixingqiegezuanshi。

       Toi Et Moi 钻石订婚戒，by Olivier Reza
       jietuocaiyongbojinzhizuo，lixingqiege fancy vivid lanzuanzhong5.35kela，dadaoifjingdujibie，lingyikelixingqiegewusezuanshizhong5.42kela，dadaodsejiheifjingdujibie。

       Art Deco 风格蓝钻订婚戒指
       zhizuoyu1930nian，zhongyangxiangqianyike3.02keladezumulvxingqiegelanzuan，dadao fancy grayish blue jibie，liangcexiangqianzongzhong0.30keladezuanshi。

       蓝钻订婚戒，from Harry Winston collection
       zhushiweiyike5kelade fancy vivid lanzuan，caiyongzumulvxingqiege，liangcefenbiexiangqianyikewusezuanshi，zongzhong0.96kela。

       蓝钻订婚戒指，from Graff collection
       zhushiweiyike1.04kelade if jibielanzuan，liangcegexiangqianyikelixingqiegewusezuanshi。

       蓝钻订婚戒，from Graff collection
       zhongyangxiangqianyike3.15keladelanzuan，dadao fancy dark greyish blue jibie，jietuoxiangqianzuanshi。

       蓝钻订婚戒指，from Graff collection
       zhushiweiyike5.25keladezhenxingqiegelanzuan，dadao fancy vivid jibie，liangcegexiangqianyikexinxingqiegezuanshi，jietuocaiyongbojinzhizuo。