Ukuthenga ubucwebe obuthandekayo bedayimane, abathengi badinga ukuqonda amadayimane ngombono ochwepheshe. Indlela yokwenza lokhu ukubona i-4C, indinganiso yamazwe omhlaba yokuhlola amadayimane. Ama-CS amane anesisindo, iBanga lemibala, ibanga lokucacisa, kanye nokusika.
1. Isisindo se-carat
Isisindo sedayimane sibalwa eCarats, noma ebizwa ngokuthi "amakhadi", 1 i-carat ilingana namaphoyinti ayi-100, iDayimane yeCarat engu-0.5, ingabhalwa njengamaphuzu angama-50. Ikhalori elilodwa lilingana namagremu ayi-0,2, okusho ukuthi i-gram eyodwa ilingana namakhalori ayi-5. Idayimane elikhulu, umRarer kumele abe. Okokuqala abathengi bedayimane yedayimane, zama ukuqala ngokukhetha usayizi wedayimane. Kodwa-ke, ngisho namadayimane amabili esisindo esifanayo se-carat angahluka ngenani ngenxa yemibala ehlukene, ukucaca nokusikwa, ngakho-ke kunezinye izici okufanele zibhekwe lapho kuthengwa amadayimane.
2 Ibanga lemibala
Okuvame kakhulu emakethe kukhona amadayimane aseCape Chedes, angahlukaniswa ngokuthi "obala okungenamibala" ku- "acishe abe ngombala" futhi "aphuzi akhanyayo". Ibanga lemibala linqunywa ngokuya nge-GB / T 16554-2017 "I-Diamond Grading" ejwayelekile, kusukela ngombala "D" kuya ku- "z". Umbala ngu-D, E, F, owaziwa nangokuthi unombala osobala, awuvamile kakhulu, umehluko phakathi kwabo ukuncika kochwepheshe ngokucophelela ukukhomba. Umbala ovame kakhulu ngu-G to L, owaziwa nangokuthi awusondele kangako. Ochwepheshe kuzoba lula ukuhlukanisa, kepha umuntu ojwayelekile kunzima ukuhlukanisa, uma kusethwe ubucwebe ubucwebe kunzima ukuthola. Umbala ungaphansi kwe-M, owaziwa nangokuthi ophuzi okhanyayo, umuntu ojwayelekile angakwazi ukuhlukanisa, kepha intengo ngokusobala ishibhile kakhulu. Eqinisweni, amadayimane aneminye imibala, ebizwa ngokuthi amadayimane anemibala, angaba ophuzi, apinki, aluhlaza okwesibhakabhaka, okuluhlaza, okubomvu, okumnyama kakhulu, inani eliphakeme kakhulu.
3. Ukucaca
Idayimane ngalinye lihlukile futhi liqukethe ukufakwa okungokwemvelo, njengokuzalwa kwemvelo, kanye nenombolo, usayizi, ukwakheka nombala walezi zinhlanganisela kunqume ukucaca nobunye bukabumbano. Eqinisweni, ukungezwani kwamadayimane okuningi akubonakali ngampela esweni elinqunu. Okumbalwa ukufakwa kwedayimane edayimane, lapho ukukhanya kuvinjelwe khona, futhi idayimane likhanya kabili. Ngokwesilinganiso esithi "Diamond Grading" ejwayelekile, ukucaciswa kokuhlonza kufanele kwenziwe ngaphansi kwezikhathi eziyi-10, futhi amamaki alo anjengokulandelayo:
I-LC ayinaphutha
Izici ezingaphakathi ezingaphakathi nezingaphandle zama-VV (Ochwepheshe kufanele zibukeke ngokucophelela ukuzithola)
Vs Izici ezincanyana zangaphakathi nezingaphandle (nzima kakhulu ochwepheshe ukuthola)
Izici ze-SI Micro zangaphakathi nezingaphandle (kulula kochwepheshe ukuthola)
P inezici zangaphakathi nezangaphandle (zibonakala ngamehlo anqunu)
Amadayimane angenhla kwama-vv awavamile. Okuqukethwe yi-vs noma i-SI nakho akubonakali ngeso elinqunu, kepha intengo ishibhile kakhulu, futhi abantu abaningi bathenga. Ngokuqondene ne-P-Class, intengo iphansi kakhulu, futhi uma igqamile ngokwanele futhi igqamile ngokwanele, ingaphinde ithengwe.
Ezine, ukusikwa
Ukusika kufanekisela izinto eziningi, ngaphezu kokwakheka, kufaka phakathi i-angle, ingxenye, ukuvumelanisa, ukugaya nokunye. Lapho i-diamond cutting engxenyeni kufanelekile, ukukhanya kufana nokukhombisa isibuko, ngemuva kokuphikiswa kwezici ezahlukahlukene, kuncishiswe phezulu kwedayimane, kukhipha ubukhazikhazi. Idayimane elisikiwe lijulile kakhulu noma elingasho lutho lizodala ukukhanya kuphume kusuka phansi bese kulahlekelwa yi-luster yayo. Ngakho-ke, amadayimane asikwe kahle ngokwemvelo anenani eliphakeme.
Isikhathi sePosi: Sep-22-2023