Cov txheej txheem:

Yuav ua li cas xaiv lub nplhaib pob zeb diamond
Yuav ua li cas xaiv lub nplhaib pob zeb diamond
Anonim

Cov lus qhia no yuav pab koj xaiv cov hniav nyiaj hniav kub nrog lub pob zeb kim yog tias koj tsis tau ua qhov no ua ntej thiab tsis muaj lub tswv yim dab tsi tseem ceeb uas yuav tsum tau them rau hauv cov xwm txheej zoo li no.

Yuav ua li cas xaiv lub nplhaib pob zeb diamond
Yuav ua li cas xaiv lub nplhaib pob zeb diamond

Xyuas daim ntawv pov thawj

Nplhaib nrog pob zeb diamond tuaj yeem muab faib ua ob pawg: nrog pob zeb txog li 0.30 ct thiab ntau dua 0.30 ct, qhov twg ct yog carat, ib chav tsev ntawm kev ntsuas qhov loj ntawm lub pob zeb. Pob zeb diamond hnyav los ntawm 0.30 ct tau ntawv pov thawj los ntawm gemological kuaj, pob zeb hnyav dua 0.30 ct feem ntau tsis muaj ntawv pov thawj. Ntxiv mus, daim ntawv pov thawj nws tus kheej tuaj yeem yog rau tag nrho cov hniav nyiaj hniav kub, lossis tsuas yog rau pob zeb.

Koj tuaj yeem tshawb xyuas ib daim ntawv pov thawj los ntawm tus lej ntawm lub vev xaib ntawm lub chaw kuaj mob uas muab nws. Rau cov pob zeb loj tshwj xeeb, qee lub chaw soj nstuam luam tawm daim ntawv pov thawj tus lej ntawm lub girdle (ib feem ntawm pob zeb diamond nto uas txiav txim siab nws cov duab).

Qhov chaw fwm gemological tshaj plaws hauv ntiaj teb yog GIA. Nws yog tus thawj coj hauv kev soj ntsuam kev lag luam los ntawm Tebchaws Meskas. Qhov tseeb nthuav yog tias daim ntawv pov thawj los ntawm GIA lub chaw haujlwm hauv Tebchaws Meskas muaj nuj nqis ntau dua li daim ntawv pov thawj los ntawm GIA lub chaw haujlwm hauv Is Nrias teb, thiab hauv Russia GIA tsis muaj chaw ua haujlwm sawv cev txhua.

Yog tias lub pob zeb tau lees paub los ntawm lub chaw gemological hauv ib lub tebchaws, qhov no tsis tau txhais hais tias nws tau mined nyob rau ntawd. Nws yog ib txwm zoo rau lub pob zeb yuav tsum tau mined thiab txiav nyob rau hauv ib qho chaw, thiab muaj ntawv pov thawj nyob rau hauv lwm yam kom paub meej tias nws cov yam ntxwv siab los ntawm lub reputable gemological chaw.

Nyob rau hauv Russia, pob zeb diamond feem ntau tau ntawv pov thawj nyob rau hauv gemological centre ntawm Moscow State University los yog IGC, uas ntseeg tau thiab lees paub thoob plaws lub ntiaj teb no.

Ntsuas cov yam ntxwv

Dab tsi yog feem ntau sau rau hauv daim ntawv pov thawj? Ob qhov ntsuas yog siv los ntsuas cov pob zeb diamond: xim thiab zoo (clarity). Cov yam ntxwv no zoo li kev sib koom ua ke, cov xim zoo nkauj yog qhov tseeb thiab pob tshab, thiab qhov zoo yog cov yam ntxwv los ntawm kev suav nrog hauv pob zeb, sawv cev los ntawm graphite dots thiab tawg. Nyob rau hauv Russia, cov yam ntxwv no yog reflected nyob rau hauv cov zauv, nyob rau hauv lub thoob ntiaj teb teev - nyob rau hauv cov tsiaj ntawv. Lawv qhov piv yog qhia hauv cov lus hauv qab no.

Duab
Duab

Piv txwv li, koj tuaj yeem pom cov ntawv sau 5/6 ntawm cov khoom cim npe. Qhov no txhais tau hais tias cov xim ntawm lub pob zeb muaj nqi ntawm 5, thiab qhov zoo (clarity) - 6. Qhov ntsuas 3/3 yog suav tias yog ze rau qhov zoo tagnrho raws li cov yam ntxwv tiag tiag ntawm pob zeb diamond. Nws tsis tshua muaj pob zeb kom tau txais qib siab dua los ntawm lub chaw gemological, tab sis qhov no kuj tshwm sim. Cov ntaub ntawv no yog tsim nyog los xyuas ob zaug, vim hais tias ntawm nws, lub pob zeb ua ho kim dua.

Cov yam ntxwv zoo ntawm lub pob zeb loj yog xam los ntawm 3/5 txog 4/5.

Nco ntsoov qhov dag ntawm cov tuam ntxhab

Cov pob zeb me me nrog stats xws li 5/5 yuav pom qhov muag daj, yog li lawv yuav raug teeb tsa nrog cov kub daj kom du tawm cov nyhuv no. Thiab yog tias lub pob zeb loj muaj 5/5 tus yam ntxwv, ces qhov muag pom koj yuav tsis pom cov xim ntawm cov xim thiab tsis zoo li qhov txawv ntawm tib lub pob zeb nrog 3/3 yam ntxwv, tshwj tsis yog tias koj yog tus kws tshaj lij gemologist. Xws li ib lub pob zeb diamond yuav raug framed nrog dawb kub. Paub qhov no, koj tuaj yeem txuag tau me ntsis.

Ntxiv nrog rau lub pob zeb, nws tsim nyog them sai sai rau qhov hnyav ntawm tag nrho cov hniav nyiaj hniav kub. Cov tuam txhab lag luam zoo tsis txuag nyiaj kub, yog li lub nplhaib zoo nkauj hnyav tsawg kawg 2 g. Lub shank yuav tuab thiab tsis nyias, uas yuav ua rau cov khoom siv ntev dua li cov khoom sib dua, uas tuaj yeem khoov lossis tawg hauv ib nrab. Qhov hnyav ntawm cov kub siv yuav tsis cuam tshuam rau tus nqi ntawm cov khoom, vim tias qhov tseem ceeb ntawm tus nqi yog tus nqi ntawm cov pob zeb diamond hauv cov nyiaj, qhov seem yog feem pua ntawm qhov hluav taws xob thiab cov khoom lag luam.

Raws li cov ntaub ntawv no, txhua tus tuaj yeem txiav txim siab rau nws tus kheej qhov twg yuav txuag nyiaj, kaw nws lub qhov muag rau dab tsi, thiab qhov twg yuav tsum tau saib xyuas ntau dua. Yuav qhov zoo tshaj plaws kom txawj ntse, pob zeb diamond yog kev nqis peev zoo rau xyoo tom ntej.

Pom zoo: