Daim ntawv pov thawj qib pob zeb diamond, tseem hu ua daim ntawv pov thawj qib pob zeb diamond, yog daim ntawv tshaj tawm uas tshuaj xyuas pob zeb diamond rau qhov tsis raug. Ua ntej koj yuav pob zeb diamond, xyuas kom tseeb tias koj paub yuav nyeem nws daim ntawv pov thawj li cas kom koj tsis txhob nkim nyiaj ntawm lub pob zeb tsis raug, thiab ua kom lub pob zeb zoo nkauj tshaj plaws, qhov loj, thiab qhov zoo tshaj plaws.
Cov kauj ruam
Ntu 1 ntawm 10: Txheeb Xyuas Tus Zov Me Nyuam
Kauj Ruam 1. Nkag siab tias qee lub tuam txhab hu lawv cov ntawv tshaj tawm "daim ntawv pov thawj" thaum lawv tsis yog
Ntau lub chaw kuaj mob hu lawv cov ntawv "daim ntawv pov thawj"; Txawm li cas los xij, qhov no tuaj yeem yuam kev rau tus neeg siv khoom. Yog tias koj nyeem cov ntaub ntawv tom qab, txawm tias cov uas luam tawm "daim ntawv pov thawj" rau lawv, cov ntawv luam zoo nyob tom qab hais tias lawv tsuas yog "lees paub" tias tus kws tshaj lij pob zeb lossis ntau tus kws tshaj lij pob zeb tau muab qib pob zeb diamond. Lawv kuj hais tias daim ntawv tshaj tawm "tsis muaj kev lees paub", thiab yog li, los ntawm kev txhais, tsis lees paub qhov zoo uas lawv tau teev tseg.
Tsuas yog kev muag khoom lag luam siv lub chaw soj nstuam ISO uas tau muab daim ntawv pov thawj yog Tiffany & Co. Lawv lees paub thiab lav zoo ntawm lawv cov pob zeb diamond
Kauj Ruam 2. Paub txog tsab ntawv ceeb toom muab los ntawm HRD
Hoge Raad voor Diamant (HRD), lossis "Pob Zeb Diamond Siab Council," yog Tebchaws Europe tus piv txwv rau GIA. HRD daim ntawv pov thawj qhab nia yog cov ntaub ntawv raug cai hauv European Union lub qhov muag.
Kauj Ruam 3. Tshawb xyuas tsab ntawv ceeb toom los ntawm PGGL
Kev Tshawb Fawb Qib Qib Siab Zoo (PGGL) hauv Philadelphia, PA, siv ImaGem Kev Ntsuas Kev Ntsuas ncaj qha rau lub hom phiaj pob zeb diamond. ImaGem cov cuab yeej thev naus laus zis qib pob zeb diamond raws kev ntsuas xim, kom pom tseeb, fluorescence thiab coj tus cwj pwm zoo. Lawv muaj lub peev xwm los txhawb txhua qib nrog kev ntsuas lej.
Kauj Ruam 4. Txheeb xyuas qhov qhab nia ua tiav los ntawm IGI
Lub koom haum International Gemological Institute (IGI) feem ntau ua qhov kev ntsuas rau pob zeb diamond sib koom tes.
Kauj Ruam 5. Nrhiav kom tau qhab nia los ntawm AGS
American Gem Society (AGS) qib thiab ntsuas cov pob zeb diamond raws li lawv qib txiav los ntawm 0 (feem ntau xav tau) mus rau 4 (yam tsawg kawg xav tau).
Kauj Ruam 6. Txheeb xyuas qhov qhab nia los ntawm GIA
Lub koom haum Gemological ntawm Asmeskas (GIA) yog lub koom haum tsis koom tes uas tsim "plaub Cs" (Txiav, Pom tseeb, Xim thiab Carat Nyhav) cov txheej txheem ntawm qib pob zeb diamond, nrog rau International Pob Zeb Diamond Qib Kawm Qib Siab. Txawm li cas los xij, cov ntawv ceeb toom los ntawm lub koom haum no tshem tawm qee yam ntawm kev txiav pob zeb diamond uas lwm cov ntawv tshaj tawm npog (piv txwv li qhov siab qhov feem pua, pavilion qhov tob feem pua, lub kaum sab xis crown, lub pavilion kaum). Tsis tas li, 4 C's tsis tuaj yeem piav qhia tus yam ntxwv ntawm pob zeb diamond, yog li nws yog qhov tseem ceeb kom pom pob zeb hauv tus neeg ua ntej koj txiav txim siab yuav nws.
Cov ntawv ceeb toom los ntawm GIA tom qab xyoo 2005 uas yog Daim Ntawv Qhia Txog Pob Zeb Diamond tiav (lawv tsis siv lo lus "ntawv pov thawj") suav nrog daim duab thiab qhov feem ntawm pob zeb diamond txiav
Kauj Ruam 7. Tshaj tawm tsab ntawv ceeb toom los ntawm EGL
European Gemological Laboratory (EGL) yog lub network ywj pheej ntawm pob zeb diamond qib kev soj ntsuam. EGL lub chaw soj nstuam siv GIA lub npe, tab sis lawv cov tswv qib qib pob zeb diamond tsis tas yuav phim cov uas siv los ntawm GIA, thiab tsis yog lawv cov teeb pom kev zoo thiab cov txheej txheem..
Ntu 2 ntawm 10: Nrhiav Kev Txiav
Kauj Ruam 1. Nkag siab qhov tseem ceeb ntawm kev txiav pob zeb diamond
Qhov no yog cov ntaub ntawv tseem ceeb tshaj plaws los txiav txim siab, raws li nws suav nrog qhov zoo nkauj ntawm pob zeb. Qhov txiav txiav txiav txim siab li cas lub teeb pom kev thiab cuam tshuam los ntawm lub pob zeb diamond kom nws ua las voos thiab ua rau pom kev.
Kauj Ruam 2. Txheeb xyuas cov ntaub ntawv muab qhab nia ntawm pob zeb diamond txiav
Txhawm rau paub tias pob zeb diamond tau txiav zoo npaum li cas, xyuas kom cov ntaub ntawv qib cov pov haum txiav lossis lub teeb pom kev zoo raws qhov ntsuas ncaj qha.
Ceev faj ntawm kev sim uas teev cov qib txiav raws tus qauv, thiab tsis yog pob zeb diamond tiag
Kauj Ruam 3. Ua kom ntseeg tau tias daim ntawv pov thawj suav nrog qib kev coj tus cwj pwm thiab ntsuas tus lej kom ci ntsa iab, ci ntsa iab thiab siv zog
Daim ntawv qhia qhab nia pob zeb diamond yuav tsum muaj ntsuas ntsuas rau qhov ci, hluav taws (xim xim), ci ntsa iab thiab qauv. Nws tseem yuav tsum suav nrog txhuam thiab ua tiav (kos duab) cov cim.
Yog tias nws tsis yog, koj muaj txoj cai nug koj tus kws tshaj lij rau qhov kev ywj pheej pom kev coj tus cwj pwm zoo daim ntawv pov thawj
Ntu 3 ntawm 10: Txheeb Hnub
Kauj Ruam 1. Ua kom ntseeg tau tias koj txheeb xyuas hnub tim ntawm daim ntawv
Daim ntawv pov thawj qib pob zeb diamond tsuas yog qhia meej txog lub pov haum cov khoom thaum lub sijhawm tshuaj xyuas, yog li nws txhais tau tias tsis muaj dab tsi yog tias pob zeb diamond tau hloov tom qab.
Kauj Ruam 2. Nkag siab tias daim ntawv tshaj tawm qub yuav tsis muaj qab hau
Daim ntawv pov thawj laus dua, muaj feem ntau dua uas lub pob zeb diamond tau hloov pauv (piv txwv li teeb tsa lossis hnav).
Kauj Ruam 3. Npaj kom muaj pov thawj
Yog tias daim ntawv muaj hnub nyoog ntau dua ib xyoos lossis tsis muaj hnub tim, koj tuaj yeem nug tus kws tshaj lij pob zeb txhawm rau txheeb xyuas daim ntawv tshaj tawm lossis them nyiaj kom xa nws rov los tshuaj xyuas.
Yog tias qhov no tsis tuaj yeem ua, yam tsawg kawg nug txog pob zeb diamond keeb kwm thiab tshuaj xyuas lub pob zeb raws li qhov kev puas tsuaj ntawm cov yas (sab saum toj), lub hauv paus (hauv qab), lossis ib puag ncig nws txoj hlua khi (txoj kab nqaim nyob ib puag ncig sab nrauv ntawm pob zeb diamond), qhov twg nws yog tuav los ntawm cov hniav nyiaj hniav kub teeb)
Ntu 4 ntawm 10: Txheeb Xyuas Qhov hnyav Carat
Kauj Ruam 1. Paub ntau npaum li cas qhov hnyav hnyav
Ib carat yog sib npaug rau 1/142 ntawm ib ooj.
Feem ntau, siab dua qhov hnyav hnyav, ntau dua tus nqi; txawm li cas los xij, tus nqi dhia ntawm qee qhov hnyav, thiab qee qhov hnyav tau nrov dua (thiab yog li kim dua) dua li lwm qhov
Kauj Ruam 2. Nkag siab tias qhov hnyav ntawm pob zeb diamond yuav tsum yog qhov tseeb
Qhov hnyav ntawm pob zeb diamond yog qhov ntsuas tseeb feem ntau yog rau qib thib ob. Nws yog ib txoj hauv kev los txheeb xyuas tsab ntawv ceeb toom.
Nws yog ib qho tseem ceeb kom nco ntsoov tias qhov hnyav hnyav yog qhov hnyav, tsis yog qhov pom ntawm pob zeb diamond. Nws muaj peev xwm ua tau rau.97 carat pob zeb diamond kom dav dua li 1.03 carat pob zeb diamond
Ntu 5 ntawm 10: Ntsuas Kev Ntsuas rau Pob Zeb Diamond
Kauj Ruam 1. Paub txog qhov tseem ceeb ntawm txoj kab uas hla
Cov ntawv ceeb toom qib suav sau qhov siab tshaj plaws thiab qhov tsawg kawg nkaus rau puag ncig pob zeb diamond, vim tsis muaj pob zeb diamond zoo meej. Qhov sib txawv ntawm ob txoj kab nruab nrab no yog qhia txog qhov zoo npaum li cas hauv cov pob zeb diamond puag ncig.
Piv txwv li, puag ncig pob zeb diamond nrog ntsuas ntawm 6.50 x 6.56 x 4.72 mm yuav muaj txoj kab uas hla uas txawv ntawm 0.06 hli. Tus lej no yog qhov sib txawv ntawm thawj ob qhov kev ntsuas uas teev tseg
Kauj Ruam 2. Paub cov qauv txheej txheem sib txawv rau puag ncig pob zeb diamond
Cov npe ntawm qhov nruab nrab txoj kab uas hla kev zam rau qhov sib txawv yog:
- 0.5 carat - 0.05 hli
- 0.6 carat - 0.06 hli
- 0.7 carat - 0.07 hli
- 0.8 carat - 0.08 hli
- 0.9 carat - 0.09 hli
- 1.0 carat - 0.10 hli
- 2.0 carat - 0.12 hli
- 3.0 carat - 0.14 hli
- 4.0 carat - 0.16 hli
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5.0 carat - 0.17 hli
Nov yog cov lus qhia txog kev lag luam; cov duab zoo nkauj nyiam yog tus kheej zoo li pob zeb diamond
Ntu 6 ntawm 10: Ntsuas Kev Ntsuas rau Kev Txiav Pob Zeb Diamond
Kauj Ruam 1. Ua qee qhov lej yooj yim los txiav txim siab qhov ntsuas
Rau cov duab zoo nkauj, faib cov pob zeb diamond qhov ntev los ntawm nws qhov dav los txiav txim siab qhov sib piv. Yog tias koj cov lus teb yog 1.8, piv txwv li, tom qab ntawd qhov sib piv yog 1.8: 1.
Kauj Ruam 2. Qhia koj tus kheej txog tus qauv piv rau cov duab zoo nkauj
Cov npe ntawm qhov nruab nrab piv rau cov pob zeb zoo nkauj zoo nkauj yog:
- Pear - 1.50: 1 txog 1.75: 1
- Marquise - 1.80: 1 txog 2.20: 1
- Emerald - 1.30: 1 txog 1.50: 1
- Ntxhais fuabtais - 1.15: 1 txog 1.00: 1
- Radiant - 1.50: 1 txog 1.75: 1
- Lub plawv - 1.25: 1 txog 1.50: 1
- Oval - 1.30: 1 txog 1.50: 1
Ntu 7 ntawm 10: Nco Ntsoov Qhov Tseeb
Kauj Ruam 1. Paub txog tias cov txheej txheem muab qhab nia sib txawv sib txawv
Tham nrog lub koom haum uas tsim daim ntawv pov thawj rau cov ntaub ntawv ntawm txhua qhov kev ntsuas meej meej txhais li cas.
Kauj Ruam 2. Siv qhov piv txwv yog tias koj tsis paub meej
Qhov kev ntsuas meej rau GIA tau teev tseg ntawm no ua piv txwv:
- FL = Zoo meej Tsis muaj kev suav nrog sab hauv lossis sab hauv tsis xwm yeem pom hauv qab 10x kev nthuav dav rau qhov muag tau kawm.
- YOG = Sab hauv Flawless. Tsis muaj kev suav nrog sab hauv tab sis muaj peev xwm me me sab nrauv tsis xwm yeem hauv qhov ua tiav pom rau kev kawm qhov muag hauv qab 10x kev nthuav dav.
- VVS-1 = Heev Heev Me Me Nrog 1. Feem ntau ib qho me me heev suav nrog tsuas yog pom rau qhov muag tau kawm hauv qab 10x kev nthuav dav.
- VVS-2 = Heev Heev Me Me Nrog 2. Me me kev suav nrog pom tsuas yog rau kev kawm qhov muag hauv qab 10x kev nthuav dav.
- VS-1 = Muaj Me Nyuam Nrog 1. Qee qhov me me suav nrog rau txhua tus neeg nrog 10x kev nthuav dav.
- VS-2 = Muaj Tsawg Me Me 2. Ob peb qhov kev suav nrog me me pom rau txhua tus neeg nrog 10x kev nthuav dav.
- SIb-1 = Me ntsis suav nrog 1. Kev suav me me rau txhua tus neeg nrog 10x kev nthuav dav.
- SIb-2 = Me ntsis suav nrog 2. Ob peb qhov kev suav me me rau txhua tus neeg nrog 10x kev nthuav dav.
- SIb-3 = Me ntsis suav nrog 3. Kev suav nrog yog pom rau qhov muag liab qab ntawm tus kws saib xyuas kev kawm.
- Kuv-1 = Suav nrog 1. Qhov tsis zoo uas pom tau rau qhov liab qab, tsis tau kho qhov muag.
- Kuv-2 = Suav nrog 2. Ntau qhov tsis pom kev pom tseeb rau qhov liab qab, qhov muag tsis pom kev uas txo cov pob zeb ci ntsa iab.
- Kuv-3 = Suav nrog 3. Ntau qhov tsis txaus ntseeg pom tseeb rau qhov liab qab, tsis muaj lub qhov muag tsis pom kev uas ua rau lub ntsej muag ci thiab ua kom tsis zoo, ua rau pob zeb diamond tsis yooj yim rau tawg lossis tawg.
Ntu 8 ntawm 10: Ntsuam Xyuas Xim
Kauj Ruam 1. Paub tias txhua lub chaw kuaj ntshav muaj nws cov txheej txheem xim sib txawv los sib txawv pob zeb diamond hues
Raws li txoj cai, cov pob zeb tsis muaj xim tsis kim thiab kim tshaj li pob zeb diamond daj lossis xim av.
Kauj Ruam 2. Nkag siab tias tus nqi ntawm cov pob zeb diamond xim yuav hloov pauv
Ntuj xiav, ntsuab, paj yeeb, liab thiab qee lub pob zeb daj kuj tseem tuaj yeem nce lossis txo tus nqi nyob ntawm kev thov kev lag luam. Pob zeb diamond uas muaj qhov txaus ntawm cov xim thiab qib raws li qhov zoo nkauj los ntawm chav kuaj feem ntau muaj txiaj ntsig ntau dua, nyob ntawm kev ua lag luam thiab lawv cov qhab nia, vim tias lawv tshwm sim tsis tshua muaj tshwm sim.
Kauj Ruam 3. Zam cov pob zeb diamond nrog cov xim av lossis grey overtones
Qhov no feem ntau cuam tshuam tsis zoo rau tus nqi lag luam. Pob zeb diamond nrog cov xim av lossis grey overtones tuaj yeem txiav zoo nkauj, txawm li cas los xij, thiab qhov ntawd tuaj yeem npog lawv lub cev me ntsis xim. Lawv muab tus nqi qis dua vim xim, tab sis lawv tuaj yeem zoo li ci ntsa iab - txawm hais tias sov dua. Yuav tsum paub, yog tias tus nqi zoo heev rau qhov loj me, saib lub pob zeb diamond nyob ib sab ntawm qhov dawb, teeb pom kev tom qab.
Ntu 9 ntawm 10: Txheeb Tshooj Tshooj Cai
Kauj Ruam 1. Nkag siab tias "qhov tob" yog dab tsi
Qhov tob hais txog tag nrho qhov tob ntawm pob zeb diamond los ntawm lub rooj rau khoom noj khoom haus, raws li feem pua ntawm nws tag nrho txoj kab uas hla. Qhov xav tau qhov feem pua nyob ntawm qhov zoo ntawm pob zeb diamond. Txiav zoo pob zeb diamond feem ntau nyob ib puag ncig 59%-62%.
Kauj Ruam 2. Kawm seb "culet" hais txog dab tsi
Culet hais txog hauv qab ntawm pob zeb diamond uas xaus rau hauv ib kis. Nws tuaj yeem ua rau ntsej muag los tiv thaiv qhov ntxeev ntawm qhov chipping.
Kauj Ruam 3. Paub tias "rooj" yog dab tsi
Cov lus hais txog qhov dav ntawm qhov loj tshaj plaws sab saum toj ntawm pob zeb diamond. Lub rooj feem pua yog qhov ntsuas nruab nrab ntawm lub rooj, raws li feem pua ntawm tag nrho qhov nruab nrab txoj kab nruab nrab ntawm pob zeb diamond. Cov lus feem pua ntawm qhov sib npaug zoo niaj hnub hloov pauv ci ntsa iab txiav ntawm 52% - 62%.
Kauj Ruam 4. Paub txog "dab tshos" yog dab tsi
Girdle hais txog thaj tsam ntawm pob zeb diamond qhov twg hauv qab sib ntsib saum pob zeb diamond. Tej zaum nws yuav ntxhib, txhuam, bearded, polished lossis ntsej muag. Nws tseem yog thaj chaw feem ntau yuav muaj ntuj, nicks, chips thiab kab noj hniav
Ntu 10 ntawm 10: Nco Ntsoov Tiav
Kauj Ruam 1. Txheeb xyuas qhov ua "tiav"
Ua ntej yuav pob zeb diamond, nco ntsoov nws daim ntawv pov thawj teev txhua yam hauv qab no ua tiav raws li "zoo" lossis zoo dua, thiab tias cov yam ntxwv ntawm "txhuam" thiab "sib npaug" tsawg kawg "zoo" lossis zoo dua:
- Polish
- Sib npaug
-
Fluorescence
Cov kev xav sib txawv ntawm qhov xav tau ntawm fluorescence hauv pob zeb diamond. Muaj zog fluorescence hauv pob zeb diamond daj me ntsis tuaj yeem ua rau lawv pom dawb, tab sis muaj zog fluorescence hauv cov xim dawb lossis zoo nkauj zoo nkauj feem ntau tsis xav tau. Ib qho nyiaj fluorescence yuav cuam tshuam rau tus nqi
Kauj Ruam 2. Paub tias tsis yog txhua daim ntawv ceeb toom zoo ib yam
Ntawm qee cov ntawv ceeb toom qib pob zeb diamond, ntu ua tiav qhia lwm cov yam ntxwv ntawm pob zeb tsis suav nrog los ntawm daim ntawv tshaj tawm, zoo li cov kab sab nraud lossis cov ntawv sau.
Lub tswv yim
- Xyaum nyeem ntau daim ntawv pov thawj qib pob zeb diamond ua ntej koj mus ntsib lub khw muag khoom kom xaj khoom.
- Daim ntawv pov thawj qib pob zeb diamond lossis daim ntawv tshaj tawm yuav tsum tsis txhob muab tus nqi txiaj ntsig rau pob zeb, thiab tsuas yog muab rau pob zeb diamond xoob.
- Pob zeb diamond nrog cov ntaub ntawv tau muab qhab nia xoob. Pob zeb diamond uas tau teeb tsa yuav muaj cov ntawv ceeb toom, tab sis tshuaj xyuas lub pob zeb diamond rau cov ntawv sau laser uas phim rau daim ntawv tshaj tawm. Tsis tshua muaj, tej zaum yuav muaj kev puas tsuaj uas tshwm sim thaum txheej txheem teeb tsa.
Lus ceeb toom
- Yog tias koj daim ntawv pov thawj qib pob zeb diamond muaj cov lus hais txog txiaj ntsig txiaj ntsig, nws tsis yog lub hom phiaj tshawb fawb qhia. Hauv kev muab tus nqi, daim ntawv dhau los ua cov ntaub ntawv muaj txiaj ntsig, uas tuaj yeem ua tau los ntawm txhua tus, suav nrog tus muag khoom muag lub pob zeb diamond. Qhov no ua rau nws muaj tus yam ntxwv, tsis zoo li daim ntawv tshaj tawm lub hom phiaj.
- Kev tshuaj xyuas los ntawm GIA tus kws tshaj lij gemstone yog tsis tib yam li daim ntawv pov thawj qhab nia lossis ntawv tshaj tawm. GIA Graduate Gemologist (GG) tsuas yog ib tus neeg uas tau dhau GIA cov chav kawm hauv kev ntsuas pob zeb diamond. Tsuas yog GIA GTL (Gem Trade Lab) Cov Qib Kawm muaj txoj kev kawm raug thiab kev cob qhia kom muab daim ntawv pov thawj qhab nia.
