Kev yuav khoom kim, txhua tus neeg yuav khoom xav paub yuav ua li cas txheeb xyuas lub pob zeb diamond yam tsis yog tus kws tshaj lij.
Certificate
Yuav ua li cas txheeb xyuas lub pob zeb diamond thaum yuav? Lub authenticity ntawm cov hniav nyiaj hniav kub tau lees paub los ntawm ib daim ntawv pov thawj. Tom qab kev ntsuam xyuas, lub pob zeb diamond tau ntim rau hauv ib lub hlwv, nyob rau hauv rooj plaub ntawm kev ua txhaum ntawm kev ncaj ncees ntawm cov ntaub ntawv ntawm conformity poob nws validity. Cov tuam txhab muaj npe zoo muab cov khoom lag luam nrog daim ntawv pov thawj, yog li lub npe ntawm cov chaw tsim khoom twb tau hais ntau heev. Tsis tas li ntawd, koj yuav tsum xyuam xim rau lwm yam yam ntxwv.
Yuav tsum tau muaj:
- pob zeb diamond xim (txhais los ntawm pob tshab nplai; xim nuggets tsawg heev);
- size;
- carat hnyav (200mg / 6.4mm);
- purity (presence of inclusions);
- txiav cov duab (puab, oval, emerald, pear).
xaiv yam ntxwv:
- glow, khoom ntawm hluav taws xob ultraviolet;
- nto polishing degree;
- face symmetry.
Tus neeg soj ntsuam ywj pheej nrog qib siab hauv gemology, tsis cuam tshuam nrog kev siv, yuav muab cov ntaub ntawv qhia txog kev paub qhov txawvpob zeb diamond tiag tiag los ntawm cov khoom siv tes ua. Nws yuav txheeb xyuas thiab sau cov cim qhia ntawm tus nqi ntawm cov khoom.kauj ruam tom ntej yuav yog mus rau npe rau lub pob zeb hauv chav kuaj tshwj xeeb, uas yuav qhia cov yam ntxwv tshwj xeeb, suav nrog cov xim ntawm pob zeb diamond, thiab yog tias cov Cov hniav nyiaj hniav kub raug nyiag yog nyob rau hauv cov ntaub ntawv thoob ntiaj teb, nws tuaj yeem rov qab tau yooj yim raws li cov lus piav qhia ruaj khov.
Tests at home
1. TransparencyLub pob zeb diamond tiag tiag tsis yog pob tshab uas cov duab thiab cov ntawv tuaj yeem pom los ntawm nws. Qhov no tuaj yeem pom tau los ntawm kev tso lub pob zeb nrog lub npoo ruaj khov ntawm cov ntawv luam tawm. Cov ces kaum thiab apex ntawm kev txiav yuav tsum tsis txhob pom los ntawm cov hniav nyiaj hniav kub yog tias nws tau teeb tsa, txawm tias qhov no yuav yog vim qhov tsis sib xws ntawm polishing.
Lwm txoj kev yog saib los ntawm lub pob zeb ntawm ib qho chaw sab laug ntawm lub pob zeb huv. Yog hais tias lub pob zeb diamond tsis yog tiag tiag, lub voj voog streaks yuav tshwm nyob rau hauv qhov chaw, uas tsis pom thaum saib los ntawm lub ntuj pob zeb.
2. Fogging
Yuav ua li cas txheeb xyuas lub pob zeb diamond hauv tsev hauv vib nas this? Thaum cuam tshuam nrog cov vapors, lub pob zeb tiag tiag tsis pos huab. Qhov no tuaj yeem tshwm sim los ntawm kev ua pa ntawm lub pob zeb diamond. Yog hais tias muaj "khaus" rau ntawm nws qhov chaw, feem ntau nws yuav yog khoom cuav. Tsis muaj qhov nce ua pa tuaj yeem tsim kev tawm tsam, tsuas yog luv luv xwb.
3. Pom tsis pom hauv cov khaubncaws sab nraud povtsegIb pob zeb diamond tiag tiag tsis tshua pom hauv kab dej thaum saib los ntawm saum toj. Tab sis ib tug fake yuav tam sim ntawd muaj kev cuam tshuam qhov unnatural ib feem thiab ciam teb ntawm nws docking nrog tus tiag tiag. Feem ntau qis duaib feem yog forged.
xim
1. Qhia tau meej meej
High light refraction - yog vim li cas rau lub ci ci ci ntawm pob zeb diamond. Rau kev sib piv, siv lead ua thiab quartz muaj qhov qis dua qhov ntsuas ntawm lub teeb. Txawm hais tias qhov txiav, ci ntsa iab yog qhov zoo ntawm ib qho nugget.
2. Ob chav refraction
Ib pob zeb diamond nrum ob sab, tsis zoo li lwm lub pob zeb: ib qho yog perpendicular rau lub ntsej muag, thiab lwm yam nyob deb ntawm nws. 3. Grey highlights
Pob zeb diamond nrum qhov tshwj xeeb grey highlight, khaus tab sis tsis iridescent. Ntau xim ntxoov ntxoo yog cov pov thawj ncaj qha ntawm qhov tsis zoo ntawm cov pob zeb diamond. Pob zeb tiag tiag tsis tuaj yeem ci ntsa iab nrog cov xim zaj sawv los yog ci dhau: cov no yog tag nrho cov yam ntxwv ntawm cov khoom cuav.
Lwm yam
Saib ntawm txhua lub kaum sab xis
Yuav ua li cas rau tus cuav, tsuas yog sab saum toj yog qhov zoo tagnrho. Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tau soj ntsuam cov hniav nyiaj hniav kub los ntawm cov ces kaum sib txawv.
Susceptibility rau kub
Yog tias koj tuav lub pob zeb ntawm koj txhais tes, nws yuav nyob twj ywm rau lub sijhawm ntev. Kev kub ceev tsis yog yam ntxwv ntawm pob zeb diamond. X-ray
Vim tias lub pob zeb diamond muaj cov qauv molecular pob tshab, nws ua rau kev txiav txim siab los kuaj nws nrog x-rays, uas tuaj yeem ua tiav hauv chav kuaj kev tshaj lij lossis hauv chaw x-ray hauv zos. Lub pob zeb diamond tiag tiag yog pom tsis pom hauv x-rays, tsis zoo li ib qho me me impermeability ntawm crystals, iav, zirconium.
UV transilluminationYog ua tau, ua ntej koj nuglo lus nug "Puas yog nws ua tau thiab yuav ua li cas txiav txim siab lub pob zeb diamond hauv tsev", nws tsim nyog kuaj nws nrog ultraviolet hluav taws xob. Feem ntau cov pob zeb diamond muab lub ntsej muag xiav. Yog tias cov tshuaj tiv thaiv ntawm pob zeb rau ultraviolet yog ntsuab, daj, grey, ces koj muaj moissanite.
Kev lees paub tus yam ntxwv ntawm qhov tseeb
Nyhav thiab qhov loj me
Raws li lub rooj qhov hnyav thiab qhov loj me, nws yooj yim los txiav txim siab seb lub pob zeb diamond uas twb muaj lawm cuam tshuam cov ntaub ntawv no. Piv txwv li, zirconium yog ib nrab hnyav li pob zeb diamond.
Kev xav ntawm qhov chawTxoj hauv kev tawm tsis muaj lus nug txog yuav ua li cas txheeb xyuas lub pob zeb diamond hauv ib daim ntawm cov hniav nyiaj hniav kub. Tau kawg, raws li nws cov cwj pwm. Ib tug ncej ntawm pheej yig zoo yuav tam sim muab tawm ib tug fake. Yog hais tias lub imprint ploj lawm los yog lub thwj cim muaj ib tug inscription zoo li "CZ" es tsis txhob ntawm lub 585, 750, 950, PT, Plat - koj muaj ib tug fake. Lub cim "CZ" yog muab tso rau ntawm cov hlau zoo tib yam framing cov hniav nyiaj hniav kub, feem ntau yog cubic zirkonia.
jewelry magnifying glass
Natural diamonds feem ntau tsis muaj qhov tsis xws luag. Raws li txoj cai, cov no yog cov kev sib tw me me ntawm lub hauv paus chiv keeb, cov yam ntxwv ntawm cov pob txha, nrog rau kev hloov xim.
Zirconia thiab semi-precious pob zeb feem ntau yog dawb los ntawm qhov tsis xws luag, raws li lawv tau tsim nyob rau hauv lub chaw soj nstuam, qhov xwm txheej ntuj tsis tau pom dua. Txawm li cas los xij, qhov tsis muaj qhov tsis zoo tsis yog qhov txiav txim siab ntawm qhov tseeb.
Kev ntsuas lub zog
Kev sim lub pob zeb kom muaj zog yog qhov tsim nyog tsis muajCov kev txheeb xyuas yav dhau los: yog tias qhov kho kom zoo nkauj yog dag, qhov kev sim yuav rhuav tshem nws. Thiab ua ntej koj txhais lub pob zeb diamond li no, koj yuav tsum txiav txim siab seb qhov twg yog qhov tseem ceeb tshaj: kom tso cov hniav nyiaj hniav kub hauv nws daim ntawv qub lossis nrhiav qhov tseeb ntawm txhua tus nqi. Cov qauv uas lub pob zeb yuav tiv taus rauj tshuab, yog tias nws yog tiag, yog qhov yuam kev: lub zog tsis suav nrog cov khoom tawg yooj yim.
Kev sib cuam tshuam nrog lwm lub pob zeb
Ib pob zeb diamond muaj cov khoom txiav, uas tuaj yeem taug qab nrog iav thiab lwm yam pob zeb, polished nto uas yuav raug khawb los ntawm pob zeb diamond tiag.
Kev sib tham nrog abrasives Yog tias koj rub lub pob zeb nrog cov ntawv xuab zeb, yuav tsum tsis muaj khawb. Qhov sib txawv no tsis yog ib qho xwb, thiab xav tau kev sim ntsuas.
Kuaj los ntawm hluav taws
Nws txaus tuav lub pob zeb hla lub teeb rau 30 vib nas this, ces muab pov rau hauv dej txias, thiab tom qab ntawd saib seb qhov kub thiab txias yuav cuam tshuam li cas rau nws. Yog tias tsis muaj cov kab nrib pleb sab hauv, uas tshwm sim nrog quartz lossis siv lead ua, ces qhov kev ntsuas lub zog tuaj yeem suav tias dhau.
Txawm tias cov kws paub txog gemologists pom tias nws nyuaj rau kev paub qhov txawv ntawm qhov nugget los ntawm cov analogue tsim tawm, vim lawv cov qauv tshuaj zoo ib yam. Yog li ntawd, yog tias koj feem ntau yuav tsum tau kuaj xyuas qhov tseeb ntawm pob zeb, nws raug nquahu kom yuav cov khoom siv ntsuas hauv qhov chaw tshwj xeeb.
