一、鉆石等級有哪些

判斷一顆鉆石好壞通(tong)常看4C，即(ji)顏色（建議(yi)(yi)I色或I色以上）、凈度（建議(yi)(yi)Si1或Si1以上）、切(qie)工（建議(yi)(yi)VG或者(zhe)EX）、克(ke)拉重（建議(yi)(yi)30分以上）這四(si)個參(can)數(shu)共(gong)同左右著(zhu)鉆(zhan)(zhan)石的價格。另外鉆(zhan)(zhan)石的熒光等級，奶咖情況也會影(ying)響鉆(zhan)(zhan)石的價值。

鉆(zhan)(zhan)石(shi)重(zhong)量Carat：鉆(zhan)(zhan)石(shi)重(zhong)量以克(ke)拉(CT)計算。1克(ke)拉=0.2克(ke)=100分。鉆(zhan)(zhan)石(shi)的價(jia)值隨著(zhu)鉆(zhan)(zhan)石(shi)重(zhong)量的增(zeng)大(da)呈現(xian)不規則的幾(ji)何(he)級數增(zeng)長，鉆(zhan)(zhan)石(shi)越大(da)越稀有，越大(da)的鉆(zhan)(zhan)石(shi)越能體(ti)現(xian)重(zhong)量對價(jia)格的影響。

鉆石凈度(du)Clarity：凈度(du)是(shi)指(zhi)鉆石內含雜質所在(zai)的位置，大小、數量等來(lai)判(pan)定，最(zui)純(chun) 凈主(zhu)要是(shi)If，排(pai)序下來(lai)是(shi)IF、VVS1、VVS2、VS1、VS2、SI1、SI2、I1、I2、I3，當 然了凈度(du)越(yue)高(gao)價格會越(yue)高(gao)。

鉆(zhan)石顏(yan)色(se)Color：一(yi)般鉆(zhan)石的(de)(de)(de)顏(yan)色(se)指的(de)(de)(de)是從純(chun)凈無色(se)到淺(qian)黃色(se)，成色(se)越(yue)淡，價值越(yue)高。從高到底的(de)(de)(de)排列為(wei)D、E、F、G、H、I、J、K、L、M、N，等級(ji)(ji)最(zui)高是D(無色(se))最(zui)低是Z(泛黃)，小編(bian)建議(yi)平時購買鉆(zhan)石的(de)(de)(de)時候最(zui)好買J級(ji)(ji)以上(shang)顏(yan)色(se)的(de)(de)(de)鉆(zhan)石。

鉆(zhan)(zhan)(zhan)石(shi)(shi)(shi)(shi)(shi)切(qie)(qie)工(gong)(gong)(gong)Cut：鉆(zhan)(zhan)(zhan)石(shi)(shi)(shi)(shi)(shi)切(qie)(qie)工(gong)(gong)(gong)包括切(qie)(qie)割比例、拋光、修飾(shi)等。好(hao)(hao)的(de)(de)切(qie)(qie)工(gong)(gong)(gong)會增加鉆(zhan)(zhan)(zhan)石(shi)(shi)(shi)(shi)(shi)在(zai)視覺上(shang)的(de)(de)效果，讓鉆(zhan)(zhan)(zhan)石(shi)(shi)(shi)(shi)(shi)看(kan)起來(lai)更有火(huo)彩(cai)。在(zai)鉆(zhan)(zhan)(zhan)石(shi)(shi)(shi)(shi)(shi)的(de)(de)4C標準(zhun)中(zhong)，切(qie)(qie)工(gong)(gong)(gong)是唯一由(you)人工(gong)(gong)(gong)決定的(de)(de)因(yin)素。鉆(zhan)(zhan)(zhan)石(shi)(shi)(shi)(shi)(shi)切(qie)(qie)工(gong)(gong)(gong)等級從高到低有，理想(xiang)切(qie)(qie)工(gong)(gong)(gong)(EXCELLENT)、非(fei)常(chang)好(hao)(hao)切(qie)(qie)工(gong)(gong)(gong)(VERY GOOD)、好(hao)(hao)切(qie)(qie)工(gong)(gong)(gong)(GOOD)、一般切(qie)(qie)工(gong)(gong)(gong)(FAIR)。切(qie)(qie)工(gong)(gong)(gong)越好(hao)(hao)的(de)(de)鉆(zhan)(zhan)(zhan)石(shi)(shi)(shi)(shi)(shi)價(jia)格當然(ran)也會越貴(gui)。

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二、鉆石切工有哪些級別

理想切工

“EX”就是指“EXCELLENT”，即所說的完美切工。代表了只有3%的一流高質量鉆石才(cai)能(neng)達(da)到的標準(zhun)。這種切(qie)(qie)工使鉆(zhan)石幾乎反射(she)了所有進入(ru)鉆(zhan)石的光線，是一(yi)種杰出(chu)的切(qie)(qie)工。

非常好切工

鉆(zhan)石(shi)(shi)切(qie)工(gong)的(de)“VG”則是“VERY GOOD”，為非常好切(qie)工(gong)，代表了大(da)約15%的(de)鉆(zhan)石(shi)(shi)切(qie)工(gong)。這種切(qie)工(gong)可以使鉆(zhan)石(shi)(shi)反射(she)出和標準(zhun)等級切(qie)工(gong)的(de)光芒(mang)，而(er)且(qie)價格偏低(di)。

好切工

所說的“G”的切(qie)工(gong)就是“GOOD”，為好切(qie)工(gong)，則是鉆石(shi)反射(she)了大(da)部(bu)分(fen)進入(ru)鉆使(shi)內部(bu)的光。這種級別的要(yao)比VG級便宜(yi)的多。

一般切工

一般(ban)切(qie)(qie)工(FAIR)：代表粗糙度為35%的(de)鉆石(shi)(shi)(shi)切(qie)(qie)工，仍然(ran)是優質鉆石(shi)(shi)(shi)，但是一般(ban)切(qie)(qie)工加工的(de)鉆石(shi)(shi)(shi)反射(she)的(de)光線不及G級(ji)切(qie)(qie)工。

差切工

差切工(gong)(POOR)：這(zhe)包(bao)含所有(you)沒有(you)符合一般切工(gong)標(biao)準(zhun)的鉆(zhan)石。這(zhe)些鉆(zhan)石的切工(gong)要(yao)么深而窄(zhai)要(yao)么淺而寬易于讓(rang)光(guang)線從(cong)邊部(bu)或底(di)部(bu)逸(yi)出。

八心八箭鉆石切工

好的(de)(de)(de)切(qie)(qie)工(gong)(gong)的(de)(de)(de)鉆(zhan)(zhan)石(shi)(shi)要比(bi)切(qie)(qie)工(gong)(gong)差的(de)(de)(de)鉆(zhan)(zhan)石(shi)(shi)貴很(hen)多，鉆(zhan)(zhan)石(shi)(shi)切(qie)(qie)工(gong)(gong)的(de)(de)(de)好壞直接影響鉆(zhan)(zhan)石(shi)(shi)的(de)(de)(de)閃耀度，業(ye)內人士選購鉆(zhan)(zhan)石(shi)(shi)首先要看的(de)(de)(de)就是(shi)鉆(zhan)(zhan)石(shi)(shi)切(qie)(qie)工(gong)(gong)的(de)(de)(de)好壞。很(hen)多珠(zhu)寶店(dian)銷(xiao)售的(de)(de)(de)鉆(zhan)(zhan)石(shi)(shi)是(shi)只有一份(fen)成(cheng)品鑒定證書的(de)(de)(de)，這種證書會在(zai)(zai)證書上(shang)(shang)標(biao)明臺寬比(bi)和亭深比(bi)，一般(ban)人根本看不(bu)(bu)(bu)(bu)懂(dong)其中(zhong)的(de)(de)(de)含義(yi)，珠(zhu)寶店(dian)銷(xiao)售員通常情(qing)況下銷(xiao)售員會跟(gen)我們講鉆(zhan)(zhan)石(shi)(shi)是(shi)八(ba)(ba)(ba)(ba)心(xin)(xin)(xin)(xin)八(ba)(ba)(ba)(ba)箭(jian)(jian)(jian)的(de)(de)(de)切(qie)(qie)工(gong)(gong)，其實八(ba)(ba)(ba)(ba)心(xin)(xin)(xin)(xin)八(ba)(ba)(ba)(ba)箭(jian)(jian)(jian)不(bu)(bu)(bu)(bu)是(shi)切(qie)(qie)工(gong)(gong)等級(ji)，八(ba)(ba)(ba)(ba)心(xin)(xin)(xin)(xin)八(ba)(ba)(ba)(ba)箭(jian)(jian)(jian)也不(bu)(bu)(bu)(bu)是(shi)特(te)殊切(qie)(qie)工(gong)(gong)，八(ba)(ba)(ba)(ba)心(xin)(xin)(xin)(xin)八(ba)(ba)(ba)(ba)箭(jian)(jian)(jian)只不(bu)(bu)(bu)(bu)過是(shi)普通圓鉆(zhan)(zhan)切(qie)(qie)工(gong)(gong)等級(ji)達(da)到一定的(de)(de)(de)標(biao)準所呈(cheng)現(xian)出的(de)(de)(de)效果(guo)，且八(ba)(ba)(ba)(ba)心(xin)(xin)(xin)(xin)八(ba)(ba)(ba)(ba)箭(jian)(jian)(jian)需(xu)要在(zai)(zai)專業(ye)的(de)(de)(de)切(qie)(qie)工(gong)(gong)鏡下才會呈(cheng)現(xian)出效果(guo)。八(ba)(ba)(ba)(ba)心(xin)(xin)(xin)(xin)八(ba)(ba)(ba)(ba)箭(jian)(jian)(jian)在(zai)(zai)歐美并不(bu)(bu)(bu)(bu)受待見(jian)，GIA也不(bu)(bu)(bu)(bu)會在(zai)(zai)證書上(shang)(shang)標(biao)志八(ba)(ba)(ba)(ba)心(xin)(xin)(xin)(xin)八(ba)(ba)(ba)(ba)箭(jian)(jian)(jian)，因為(wei)其獨特(te)的(de)(de)(de)含義(yi)在(zai)(zai)亞洲一些國家比(bi)較(jiao)流行(xing)

三、購買鉆戒注意事項

購買鉆戒最好選帶有裸鉆分級證書的鉆石，因為鉆石鑲嵌好以后無法準確的對鉆石的所有參數進行分級。很多時候我們買鉆石被商場的現貨左右，對于鉆石的等級也是被略懂鉆石的員工忽悠，國內很多店鋪銷售的鉆石沒有裸鉆分級證書，這種沒有裸鉆分級證書的在行業內統稱散貨，帶有裸鉆分級證書的鉆石稱為證書貨。裸鉆分級證書會清楚的標明鉆石的各項參數，建議大家在購買鉆石的(de)時候首(shou)選(xuan)帶有GIA證書的(de)鉆石，這種鉆石以后想要賣(mai)(mai)掉的(de)話更加保值(zhi)，也更加容易賣(mai)(mai)出去的(de)。