Ukuthenga ubucwebe bedayimani obunqwenelekayo, abathengi kufuneka baqonde iidayimani ngokwembono yobungcali. Indlela yokwenza oku kukuqaphela i-4C, umgangatho wamazwe ngamazwe wokuvavanya idayimani. Ii-C ezine ziBubunzima, iBanga eliMbala, iBanga elicacileyo, kunye neBanga lokuSika.
1. Ubunzima beCarat
Ubunzima bedayimani bubalwa kwi-carat, okanye ngokuqhelekileyo kuthiwa "amakhadi", i-carat eyi-1 ilingana namanqaku angama-100, i-diamond ye-0.5 carat, ingabhalwa ngamanqaku angama-50. Ikhalori enye ilingana ne-0.2 grams, oku kuthetha ukuba igram enye ilingana neekhalori ezi-5. Okukhona idayimani inkulu, kokukhona inqabile. Kubathengi bedayimane bokuqala, zama ukuqala ngokukhetha ubungakanani bedayimani. Nangona kunjalo, iidayimani ezimbini zobunzima be-carat bunokwahluka ngexabiso ngenxa yemibala eyahlukeneyo, ukucaca kunye nokusikwa, ngoko ke kukho ezinye iinkalo ezifanele ziqwalaselwe xa kuthengwa idayimani.
2. IBanga leMbala
Eyona nto ixhaphakileyo kwimarike ziidayimani zeCape series, ezinokuthi zihlelwe njenge "colorless transparent" ukuya "phantse azinambala" kunye "nokukhanya tyheli". Umgangatho wombala unqunywe ngokwe-GB / T 16554-2017 "i-Diamond Grading" esemgangathweni, ukususela kumbala "D" ukuya ku "Z". Umbala ngu-D, E, F, owaziwa ngokuba yi-transparent colorless, inqabile kakhulu, umahluko phakathi kwabo ukuthembela kwiingcali ngononophelo ukuchonga. Owona mbala uxhaphakileyo ngu-G ukuya ku-L, nokwaziwa ngokuba phantse awunambala. Iingcali ziya kuba lula ukuhlukanisa, kodwa umntu oqhelekileyo unzima ukuhlula, ukuba ibekwe kwizinto zokugcoba kunzima ukuzibona. Umbala ungaphantsi kwe-M, owaziwa ngokuba ngumthubi okhanyayo, umntu oqhelekileyo unokukwazi ukwahlula, kodwa ixabiso ngokucacileyo liphantsi kakhulu. Enyanisweni, iidayimani zineminye imibala, ebizwa ngokuba yi-diamonds enemibala, ingaba yi-yellow, pink, blue, eluhlaza, ebomvu, emnyama, i-kaleidoscope, kodwa inqabile kakhulu, ixabiso eliphezulu kakhulu.
3. Ukucaca
Idayimani nganye yahlukile kwaye iqulethe izinto eziqukiweyo, njengophawu lokuzalwa lwendalo, kwaye inani, ubungakanani, imilo kunye nombala wolu bandiso lumisela ukucaca kwedayimani kunye nokukodwa. Enyanisweni, ukufakwa kwedayimane okuninzi kungabonakali ngeso lenyama. Okuncinci ukufakwa kwidayimani, ngakumbi ukukhanya kunqanyuliwe, kwaye idayimani iphindwe kabini. Ngokomgangatho waseTshayina “wokuhlelwa kwedayimane”, ukucaca kokuchongwa kufuneka kwenziwe phantsi kokwandiswa kwamaxesha ali-10, kwaye amabanga alo ami ngolu hlobo lulandelayo:
I-LC ayinasiphako
Iimpawu ezincinci kakhulu zangaphakathi nangaphandle zeVVS (iingcali kufuneka zijonge ngononophelo ukuze zifumane)
VS Kancinci iimpawu zangaphakathi nangaphandle (kunzima ukuba iingcali zifumane)
Iimpawu ze-SI micro zangaphakathi nangaphandle (kulula ukuba iingcali zifumaneke)
I-P ineempawu zangaphakathi nezangaphandle (ezibonakala kwiliso lenyama)
Iidayimani ezingentla kweVVS zinqabile. Imixholo ye-VS okanye i-SI nayo ayibonakali ngeso lenyama, kodwa ixabiso liphantsi kakhulu, kwaye abantu abaninzi bayathenga. Ngokuphathelele i-P-class, ixabiso liphantsi kakhulu, kwaye ukuba likhanya ngokwaneleyo kwaye likhanya ngokwaneleyo, linokuthengwa.
Isine, Sika
Ukusika kubonisa izinto ezininzi, ukongeza kwimilo, kuquka i-Angle, umlinganiselo, i-symmetry, ukugaya njalo njalo. Xa umlinganiselo wedayimane wokusika ufanelekile, ukukhanya kufana nesibuko somfanekiso, emva kokuhlanjululwa kweenkalo ezahlukeneyo, ukugxininiswa phezulu kwedayimani, kukhupha ukukhanya okukhazimulayo. Idayimani esikwe nzulu kakhulu okanye inzulu kakhulu iya kubangela ukuba ukukhanya kuhambe kumke ukusuka ezantsi kwaye kulahlekelwe ukubengezela kwayo. Ngoko ke, iidayimani ezisikwe kakuhle ngokwendalo zinexabiso eliphezulu.
Ixesha lokuposa: Sep-22-2023