异形钻切工分级评价

　　yixingzuanshideqiegejiqiaobiyuanxingzuanshiyaokunnandeduo，qiegegongjuheqiegeshangsuoxuyongdeshijianyebuduo，zaishulianzhangwolezuanshiqiegejiqiaodejishizhong，zhiyouxiangdangshaodeyibufenrenzhangwoleyixingzuanshiqiegongdefangfa。yibanlaishuo“huiqiegeyixingzuanshideshifuyidinghuiqiegeyuanzuan，danhuiyuanzuanqiegongdeshifuzebuyidinghuiqiegeyixingzuanshi。

　　心形钻石：

　　xinxingqiegongzuanshiquanshenjiaoqian，shihexingzhuangbuguizeqiezhengtijiaobiandezuanshiyuanshide，yuanchuaocaoweizhidebaoguotikeyibeitichu，yitigaozuanshijingdu，dancizhongqiegongyuanshiliucunlvjiaodi。

　　xinxingzuanshishiyizhongzuijibendeaidexiangzhengfuhao。youyudabufenxinxingzuanshijiejinyuanxing。tayejuyoujiangjinyuanxingdetingbu(pavilion)fachumirensecai。dangninxuanzesejishi，keyikaolvjjiyansedehuashizuanjiagegewaideshourenqinglai，zaiqiguanbujiaoyoushaoweikejiandaodeyanse。yinciruguoninzaiyininxuanzedezuanshijingdu，ninkeyijizuanshihuozhubaozixunchudadianhuarangtamenbangzhuninquerennindezuanshishifouwanmei。xinxingdezuanshiyeyougezhonggeyangdejiaodu，heshidexinxingzuanshichidu，tongchangshiyongzhangkuanbiwei0.90—1.10。

　　公主方钻：

　　youyuqigailiangxingshijianyoujietixingqiegongdetedian，suoyiyekeguileiyuhunhexingqiegong。fangxingqiegongyongyoufangxinghuozhangfangxingwaixing，tongchangyou76gekemian。danyeyou61ge、101gekemianhuo144gekemiande。qizhong101kemiandefangxingmingliangxingqiegongweie.f.d.zuanshigongsidezhucezhuanliqiegong，jigongzhufang。

　　gongzhufangzuanshishizuishouhuanyingdeyixingzuan。taneimeilideliangduzaijiashangdutedeqiegongchengweidazaojiehunjiezhidezuijiaxuanze。gongzhuzuanyongyouguanbujiaohesifangwaixing。dangnixuanzesejishi，yaokaolvxuanyongjjiyansedehuashizuan，qijiagelingrengewaimanyi，zaiqiguanbujiaokenengyoushaoweikejiandeyanse。duiyugongzhufangzuanshi，ninkeyixuanzezhangkuanbiliwei1-1.0 ，ruguoningengxihuanqitafangxing，ninkeyixuanzezhangkuanbilidayu1.10。

　　椭圆型钻石：

　　youlingjiexiaoying。qiyuanshiliucunlvkedadao50%-60%，shihezhangxingbamiantidezuanshiyuanshi。 yeyinweitakeyibaoliuzuanshijiaogaodezhiliang，suoyiduoyongyuxuduozhongxinqiegedegudaizuanshi。

　　tuoyuanxingzuanshiyouzheyuanzuantongyangmeilideguanghuisecai。tuoyuanxingzuanshiyinqizhangducongertuchunvshishouzhidexianxi，yinciyeshiyizhongjishoudazhongxiaidezuanxing。ruxiangzhaodaoheyidexingzhuang，ninkeyicankanzuanshixijiezhongdezhangkuanbili(length-to-width ratio)。zheijiangzhuninzhaodaoheyidekuanxing。duiyutuoyuanyixingzuanjiaoweiheshidezuanshichidu，tongchangzhangkuanbiwei1.33—1.66。

　　梨形钻石：

　　yechengweileidixingqiegong(tear cut)huozhezhuixingqiegong(pendloque cut)。lixingqiegongzaifaguoluyishisishiqishifenliuxing，lishishangzhumingdezuanshizhongyoujiangjin20%shiyongcizhongqiegong，baokuoshijieshangzuidadezuanshi：kulinanyihao(cullinan 1)。cizhongqiegongshihejiagongyiduanbianjiaoyouposunhuozhexiacidezuanshiyuanshi。xiangqianshixuzhuyijianjiaochudebaohu。 waixinglunkuoyaoqiu：liangceyiduicheng，jianjiaowuquesun。

　　zheizhongjuyouliangduqiegong(brilliant-cut )deyixingzuanshiyouyigeyuanxingduanheyigejianduan。xuduorenxihuanyuanxingdanshiyouxierenyexuanzezheizhongshuidixingzuanshi。ruguoninxuanzebijiaozhangdeshuidixing，zuanshidezhangduweinindeshouzhizengjialexianxizhigan。dangninxuanzesejishi，keyikaolvdaojjiyansedehuashizuanjiagegewaishourenqinglai，zaiqiguanbujiaoyoushaoweikejiandeyanse。heshideshuidixingzhangkuandubili:1.50—1.75。

　　祖母绿型钻石：

　　dianxingjietixingqiegongdeyanshengjiagongfangshi，suoyouqiemianjunpingxinghuochuizhiyuzuanshidefangxingwaiyaowei，waixingchengjuxing，tingbuheguanbujiaobian，dijianshouchengxianzhuang。yinchangyongyubaoshizumulvdejiagong，guming。

　　zumulvxingzhisuoyiyuzhongbutongshiyinweitadetingbu(pavilion)，qibeiqiemochengzhijiaodeqiemiancongerchuangzaochudutedeliangguang。 zheizhongqiegeyexuyaozuanshiyouhengaodejingdu。ruguoninxuanzesijijingdudezuanshi，yidingyaokanzhengmingshushangdejingdubiaoji。ruguoninzaiyiqijingdu，ninkeyizhaozixunchubangzhuninquedingyixiacishifouweiheshidezuanshi。tongyangdi，zumulvxingdezuanshiyeyougezhonggeyangdefangxing，duiyudianxingdezumulvxingdexingzhuangxuanze，ninkeyixuanzezhangkuan1.30he1.40zhijiandebili。

　　垫形切工：

　　dianxingqiegongliuchuanyu19-20shiji，shijingguoduocifazhanhegailiangxingchengdeqiegefangshi，zaicizhiqianzuanshijingguolejicigaixing，cong1830nianqi，zuanshiyoujiangjinyishijideshijianyunyongqiezhiyunyongzheizhongqiegong，baokuoxuduoshijiewenmingdezuanshi，ru：hope、regentdeng。xiangjiaoxiandaimingliangxingqiegong，dianxingqiegongdezuanshiyongyougenggaodesanshehuocai。

　　yigeshijiyiqianzuishouxiaideyizhongqiegejiushizheizhongdianxingzuanshi，(yechengweizhentouxing)juyouyuanxingguan，bijiaodademiancongerzaizhuguangxiazengjialeqiguangcai。zheizhongqiegeyexuyaohengaojingdudezuanshi。ruguoninxuanzesijijingdudezuanshi，yidingyaokanzhengmingshushangdejingdubiaoji。ruguoninzaiyiqijingdu，ninkeyizhaozixunchubangzhuninquerenyixianindezuanshishifouwanmei。tongyangdi，dianxingdezuanshiyeyougezhonggeyangdexingzhuang，heshidedianxingzuanshichidu，tongchangshiyongzhangkuanbiwei1.1—1.2。

　　雷蒂恩形：

　　radiantqiegongfamingyu1977nian，jiangrenxiwangzonghezumulvqiegongdeyouyawaixingheyuanxingqiegongmingliangdu，erchuangchucizhongqiegong。radiantyongyouzhangfangxingwaixingheqiequdesijiao。tajiangulezumulvqiegongjiaogaodeyuanshiliucunlvheyidapeidexingzhuang，yeyongyouruyuanxingcanlanxingqiegongdeyouxiuguangmangbiaoxian。

　　zongqingguanbujiaoshizheizhongyixingzuandebiaozhi。zheizhongguanbujiaoshizuanshifachuduofangweideguangcai。leidienxingzuanshiwaiguanrufaguogunzimianbaozhuangbianhuozhexiangyuanzuandebian。dangninxuanzesejishi，keyikaolvxuanzejjiyansedeyixingzuanjiagegewaideshourenqinglai，zaiqiguanbujiaoyoushaoweikejiandeyanse。yinciruguoninzaiyininxuanzedezuanshijingdu，ninkeyijizuanshihuozhubaozixunchudadianhuarangtamenbangzhuninquerennindezuanshishifouwanmei。tongyangdi，leidienxingzuanshiyeyougezhonggeyangdejiaodu，duiyuleidienxingzuanshi，ninkeyixuanzezhangkuan1he1.10zhijiandebili。ruxiangxuyaozuilixiangdejiaodu，ninkeyixuanzezhangkuanbilidayu1.11defangxing。

　　橄榄形钻石

 

　　ganlanzuanyouchengmayanzuan，zaixiandaizuanshimogongzhongyou“zhuoxingwanghou”zhicheng，liangduanshouzhaideqiegexiantiao，jiangzuanshideguangxianningju，zheizhongqiegefangfatongshikeyishizuanshikelazhongliangdadaozuijia，congbiaomiankanzexianshizhongliangdayushiji，qichuhuoshengguosuoyouzhuoxingdezuanshi。zaixuanzezheizhongxingzhuangdezuanshishi，yanseshikaolvzhongzuizhongyaode，jingduzexuanzeshaochadiandemeiyouguanxi。heshideganlanxingzuanshichidu，tongchangshiyongzhangkuanbiwei1.75—2.55，quanshenbiyibanzai60%zuoyou，jianbubunengtaigao，yaoweibunengtaijian，congtaierkanqu，yaoweichengyuanhuxing，liangbianduichengxingyaohao。lingwaiyongfangdajingguanchatingbuchangyouheiseyinying，chengwei“lingjiexiaoying”，“lingjiexiaoying”yuebumingxianyuehao。

　　ganlanxingzuanshikeyishizuanshikelazhongliangdadaozuijia，waibiaojirenyizhongxinghaojiaodadeganjue，zheizhongliangduqiegong(brilliant-cut )deyixingzuanshedingyouyuanxinghuozhenzhuxingbianyuan。zheizhongganlanxingzuanshishinindeshouzhikanqilaibijiaoxiuzhang，dangninxuanzesejishi，keyikaolvdaojjiyansedeyixingzuan，qijiagelingrengewaiqinglai，qiguanbujiaokenengyoushaoxukejiandeyanse。heshideganlanxingzuanshichidu，tongchangshiyongzhangkuanbiwei1.75—2.55。