Lo lus "carat" hauv kev sib piv nrog cov khoom lag luam kub txhais tau tias yog cov cim zoo thiab qhia qhov purity ntawm alloy. Cov ntshiab kub yog lub npe hu ua 24 carat kub, uas tau raug rau 999 zoo nkauj. 14K kub yog ib qho pom muaj tshwm sim ntawm kev ua lag luam.
Dab tsi yog karat kub
Kub yog hlau muaj suab npe rau nws cov yas. Cov kub ntshiab dhau los mos muag rau cov hniav nyiaj hniav kub, yog li nws yog siv hauv cov alloy nrog lwm cov hlau. Yog li, daj kub yog cov xim kub nrog nyiaj thiab tooj, liab dawb - tsuas yog tooj liab, dawb nrog npib tsib xee, palladium, platinum lossis zinc, ntsuab - nrog nyiaj thiab zinc lossis cadmium.
Hauv cov kab ke ntawm cov qauv coj mus kuaj rau ntau tus, cov ntsiab lus ntawm ntshiab kub ib 1 kilos ntawm alloy yog qhia. Hauv kev kaw lus carat, nws tau kwv yees tias ib qho khoom lag luam kub muaj 24 seem ntawm cov hlau. Tsuas yog kub nws tus kheej yog ntsuas hauv carats.
Yog li ntawd, ib daim ntawv cov hniav nyiaj hniav kub nrog 14 cim kab kos nrog 14 qhov ntawm cov khoom muaj nqi tshaj hlau thiab 10 seem ntawm lwm cov hlau. Los yog, yog tias peb tham txog feem pua, nws muaj 58.5% kub thiab 41,5% ntawm lwm cov hlau, uas sib piv rau 585 tus zoo, uas yog, hauv 1 kilum ntawm alloy 585 grams kub.
Cov hlau uas muaj nyob hauv cov hlau kub yog hu ua ligatures.
Tseem muaj qhov cim:
- 24 carats (999 tus qauv);
- 22 carats (916 tus qauv);
- 18 carats (750 tus qauv);
- 10 carats (nruab nrab ntawm 585 thiab 375 zoo);
- 9 carats (375 txuj).
Lub karat system yog siv dav hauv Tebchaws Europe thiab Asmeskas, zoo li hauv Suav teb, Is Nrias teb thiab Middle East. Nyob rau tib lub sijhawm, raws li cov cai ntawm lub teb chaws no, kev hloov pauv los ntawm cov ntsiab lus kub ntawm ½ carat raug tso cai. Lawm, ntau dua cov kws muag kub "ua yuam kev" hauv lawv cov txiaj ntsig.
Cov khoom kub ua cim nrog 24 daim ntaub yog tsis tshua muaj, feem ntau pom hauv Suav teb, qhov uas lawv siv rau kab tshoob kev kos, thiab 22 carat cov hniav nyiaj hniav kub zoo yog nrov hauv Middle East. 18K kub yog nrov nyob hauv cov teb chaws Europe, tshwj xeeb nrog hom saib ntawm ntug kev. 14K kub yog pom muaj nyob hauv Tebchaws Meskas.
Hauv Tebchaws Asmeskas, qhov tsawg kawg nkaus nplua rau nyiaj-kub yog 10 carats, hauv Tebchaws Europe nws yog 9.
Cov nyiaj qis qis qis qis - 9 carats, tshuav nws qhov keeb kwm rau Kev Tsov Rog Thoob Ntiaj Teb Thib Ob. Nws tau qhia tawm hauv Tebchaws Askiv kom thiaj li tuaj yeem tsim cov kab tshoob tshoob tau lees paub tias "cov khoom tseem ceeb", tab sis tib lub sijhawm siv nyiaj tsawg me ntsis hlau.
Dab tsi yog qhov txawv ntawm "kub" thiab "pob zeb diamond" carat
Muaj kev tsis sib haum xeeb ntawm pob zeb diamond thiab kub carat. Nws tau tshwm sim vim qhov tseeb tias ob qho tib si thiab lwm chav ntsuas ntawm kev ntsuas yog txuam nrog Latin lub npe rau carob noob (carat). Chav tsev ntawm huab hwm coj ntawm gemstones, sib npaug rau 200 mg, muab tau los ntawm qhov hnyav ntawm cov noob ntawm cov nroj tsuag no.
Carat - ib qho kev ntsuas ntawm kev coj dawb huv ntawm kub - muaj keeb kwm thaum lub sijhawm lub sijhawm Roman huab tais Constantine I. Nws tau hais kom cov minting ntawm kub npib - solidus - kom cov huab hwm coj kub hauv lawv tau sib npaug ntawm qhov loj ntawm 24 carob pod.
