Zahabu: icyuma cyiza, cyiza cyerekana uburyohe, amahirwe nubwiza. Gutunga imitako ya zahabu bivuze ko wazamutse mubyiciro byimari byurwego rwimibereho hanyuma ukaza hejuru, ushoboye gufata no kwiga ahantu hanini cyane mubutunzi nibyishimo ubu wiherereye. Ariko iyo tumaze gutera intambwe, tuza guhura nikibazo. Mugihe ugiye kugura igice cyambere cya zahabu, twabwirwa n'iki amasosiyete yimitako aha abakiriya babo ibyiza muribi byuma bihebuje kandi byubahwa cyane?
Zahabu mu cyubahiro cyayo cyose
Ibyuma bikundwa cyane, zahabu nicyuma gishushanya imitako icyuma cyiza cyane kandi cyiza cyimana. Ariko ntabwo zahabu ari nziza imbere gusa, iranoroshye cyane, kuburyo bworoshye kuyikora no guhinduka kuva mubintu bikozwe muburyo bukomeye kandi butandukanye.
Ni urufunguzo rwo kwibuka ko zahabu ipimwa na karat. Zahabu muburyo bwayo bwiza ni karat 24, ibi bivuze ko 24 mubice 24 byicyuma ari zahabu rwose, tekereza rero kuri ibi: igice cya karat eshatu bivuze ko ari ibice bitatu gusa zahabu mukigereranyo cyacyo 24, bivuze ibice 21 bya igice kigizwe nibindi byuma bivanze. Mugihe uhisemo kugura, reba ibigo byishimira gutanga ibice bya zahabu bitunganijwe neza muri chimie ya chimie, kandi ko ibyuma bivanze bivanze byerekana gusa impeta, ipantaro cyangwa urunigi aho kubigabanya. Nyuma ya byose, ntamuntu numwe ushaka gutunga impeta itari yo.
Mugihe ugura impeta ya 18K (ibice 18 bya zahabu kugeza kubice bitandatu ibindi byuma) Reka dukore vuba vuba ubwoko butandukanye bwa zahabu buzwi na zahabu yabo kubipimo byibyuma.
Rose Gold: Gukomatanya zahabu hamwe numuringa mwinshi.
Zahabu y'umuhondo: Gukomatanya zahabu yumuhondo harimo ifeza nifeza.
Icyatsi kibisi: Gukomatanya zahabu, ifeza, zinc hamwe n'umuringa.
Zahabu Yera: Gukomatanya zahabu nziza hamwe na palladium, nikel, umuringa na zinc.
Hano hari umubare munini wamasosiyete yimitako asezeranya abaguzi avuga ko batanga zahabu nziza cyane. Kugira ngo dufashe koroshya amahitamo yawe, twagabanije ibiganiro byacu mubigo bitatu bitanga ayo masezerano: Buccellati, Cartier na Lagos.
Buccellati
Gushiraho iduka muri Milan, umuhanga mu gucura zahabu Mario Buccellati yafunguye iduka rye mu 1919. Kuva mu ntangiriro z'ikinyejana cya 20, uruganda rukora imitako rwo mu Butaliyani rwihariye mu butunzi bw'amaboko bukozwe mu ifeza, platine na zahabu. Ibice bya Buccellati biramenyekana kubisobanuro birambuye, bishushanyije neza mubikorwa byabo byibyuma, byibutsa imyenda yimyenda, ibimera nibinyabuzima. Ibishushanyo byabo byoroshye birema ijisho rishushanya ibishushanyo mbonera byongera igice. Ukoresheje ibyuma byagaciro gusa, Buccellati yashyizeho ingoma ikomeye yimitako abaguzi bazi ko bashobora kwizera.
Icyegeranyo cya Cartier
Imiterere ya Cartier yagiye ihindura inganda zimitako kuva yashingwa mu 1847. Mu myaka 169 ishize, imitako ya Cartier yambarwa naba aristocrats, abakuru b'ibihugu, hamwe nabastar ba Hollywood. Bihwanye nibyiza, binonosoye kandi binonosoye, buri gice cya Cartier gikozwe namaboko yimenyerejwe hamwe namaso yatojwe neza kubintu byiza kandi byateguwe neza. Guhanga udushya muri Cartier ateliers itera imbibi kandi ihindura imiterere yimitako ikoresheje diyama yaciwe bitangaje kandi igizwe neza. Ukoresheje ibinyobwa bisukuye gusa, Cartier imitako irenze kwihesha agaciro ntangarugero.
Reba i Lagos
Kuva mu 1977, Lagos yishimye cyane kubera ubwitange burambuye no kuba umwizerwa ku gishushanyo mbonera. Lagos ifata ubuhanga n'ubwiza binyuze mu gutsimbarara kw'isosiyete ikoresha gukoresha zahabu isumba iyindi kandi itoroshye hamwe n'ibyuma bivanze kugirango bihangane kwambara buri gihe. Uwashinze Steven Lagos ashushanya buri gice afite icyubahiro, yizera ko ubusugire bwigice bugomba kwerekana ubusugire bwuwambaye. Imitako nubuhanzi ukurikije Lagos, bityo bigomba gukorwa mubikoresho byiza.
Zahabu muburyo bwose nikintu cyagaciro, kimurika, kirabagirana kandi kigaragaza isi. Witondere kuzirikana amakuru yavuzwe haruguru ubutaha utekereza kongeramo zahabu nziza mugukusanya imitako.