Muaj ib lo lus ntawm cov jewelers: Pob zeb diamond yog ib tug poj niam tus phooj ywg zoo tshaj plaws. Kev zoo nkauj yuav ploj mus, cov phooj ywg yuav ntxeev siab, tab sis lawv tseem yuav ci ntsa iab thiab raug nqi unthinkably dearly. Tseeb tiag, pob zeb diamond tuaj yeem hu ua ib lub pob zeb kim tshaj plaws hauv ntiaj teb. Lawv tus nqi sib txawv nyob ntawm qhov pom tseeb, xim thiab txiav, tab sis nyob rau hauv txhua rooj plaub nws yog siab heev. Hauv qab no peb yuav sim piav qhia yuav ua li cas 1 carat pob zeb diamond nqi.
Ib pob zeb diamond yog lub ntsej muag ntawm pob zeb diamond. Nws qhov hnyav yog ntsuas hauv units xws li carats. Lub npe no los ntawm ib hom ntoo uas nws cov noob tau siv los ntsuas qhov hnyav hauv lub sijhawm prehistoric. Lub sijhawm ntawd, qhov hnyav ntawm cov noob no suav tias yog siv thiab sib npaug li 0.2 grams.
Pob zeb diamond muab faib ua peb pawg nyob ntawm lawv qhov hnyav:
- loj (los ntawm 1 carat);
- nruab nrab (ntawm 0.3 txog 0.99 carats);
- me me (txog 0.29 carats).
Ib pob zeb diamond carat yog kwv yees los ntawm cov kws tshaj lij hauv ntau txoj kev, nyob ntawm seb hom pob zeb. Thiab yog tias cov me me tsuas yog muaj nuj nqis rau lawv qhov hnyav xwb, ces thaum ntsuas lub pob zeb loj, cov jewelers coj mus rau hauv tus account xws li kev pom tseeb thiab xim.
Cov pob zeb me me, tsis hais lawv cov duab, yog hu ua "melee" ntawm cov jewelers - lawv qhov hnyav yuav tsum tsis pub tshaj ib feem peb ntawm ib carat. Feem ntau lawv tau txais thaum txiav qhov ntawm lub pob zeb diamond loj. Cov pob zeb uas hnyav dua thiab qhov loj yog hu ua "me lange".
Tus nqi ntawm 1 carat pob zeb diamond tuaj yeem sib txawv ntawm ntau pua daus las mus txog kaum txhiab. Hauv qhov no, ib lub pob zeb lossis ob peb lub me me yog qhov tseem ceeb heev. Ib carat ntawm lub pob zeb diamond uas tau teem rau hauv nruab nrab ntawm ib daim ntawm cov hniav nyiaj hniav kub tuaj yeem raug nqi kaum npaug ntau dua li qhov hnyav ntawm cov pob zeb me me framing qhov chaw nruab nrab.
Qhov loj ntawm pob zeb diamond feem ntau ntsuas rau ib puas ntawm ib carat. Txhua lub pob zeb uas muaj qhov hnyav hauv qab no yog suav tias yog crumbs. Txhawm rau ntsuas, jewelers siv cov nplai tshwj xeeb carat, tab sis koj tuaj yeem txiav txim siab qhov hnyav ntawm lub pob zeb raws li nws txoj kab uas hla. Tus nqi carat ntawm lub pob zeb diamond yog xam raws li Tavernier txoj cai, qhov twg tus nqi ntawm lub gemstone yog sib npaug rau cov khoom ntawm carat tus nqi pib thiab cov square ntawm cov siv lead ua qhov hnyav. Yog li 2 carat pob zeb diamond yuav raug nqi li 3 npaug ntau dua li 1 carat pob zeb. Kev nce qib ntawm tus nqi los ntawm qhov hnyav ntawm lub pob zeb diamond loj hlob mus txog kaum carats: lub pob zeb diamond ntawm qhov loj no yuav yog ib puas npaug ntau dua li 1 carat pob zeb diamond ntawm tib qhov meej. Pob zeb tshaj 25 carats ib txwm muaj lawv lub npe.
Ob peb lus qhia rau cov uasmus yuav pob zeb diamond
Nco ntsoov tias tus lej carats ntawm pob zeb diamond tsis yog qhov tseem ceeb tshaj plaws. Nws yog ib txwm tsim nyog xav txog qhov tseeb, xim thiab txiav zoo ntawm pob zeb diamond. Yog li, piv txwv li, tus nqi ntawm 1 carat pob zeb diamond ntawm E xim thiab WS1 clarity yuav yog li 2 npaug siab dua li ntawm pob zeb nrog SI1 clarity thiab H xim.
Nco ntsoov tias tag nrho cov nqi ntawm tag nrho cov pob zeb nyob ib puag ncig tus nqi tseem ceeb ntawm cov hniav nyiaj hniav kub tsis sib npaug rau tus nqi ntawm pob zeb diamond loj nyob hauv nruab nrab. Piv txwv li, ob peb lub pob zeb diamond nrog tag nrho qhov hnyav ntawm 1 carat yuav raug nqi txog $ 600, thaum lub pob zeb nruab nrab ntawm tib xim, qhov pom tseeb thiab qhov hnyav yuav raug nqi rau tus neeg yuav khoom ntau dua $ 6,000. Nco ntsoov ceev faj thiab xyuas nrog lub jeweler yam khoom raws nraim ntawm cov khoom koj yuav.
