Garnet, yotchedwa ziyawu kapena ziyawu ku China wakale, ndi gulu la mchere lomwe lakhala likugwiritsidwa ntchito ngati miyala yamtengo wapatali ndi abrasives m'zaka zamkuwa.Garnet wamba ndi wofiira.Garnet English "garnet" amachokera ku Latin "granatus" (tirigu), omwe angachokere ku "Punica granatum" (makangaza).Ndi chomera chokhala ndi njere zofiira, ndipo mawonekedwe ake, kukula kwake ndi mtundu wake ndi ofanana ndi makhiristo a garnet.
Yellow safiro imadziwikanso kuti topazi pamabizinesi.Mitundu yosiyanasiyana ya yellow gem grade corundum.Mtundu umachokera ku chikasu chowala mpaka ku canary yellow, chikasu chagolide, uchi wachikasu ndi bulauni wonyezimira wachikasu, ndipo chikasu chagolide chimakhala chabwino kwambiri.Yellow nthawi zambiri imakhudzana ndi kukhalapo kwa iron oxide.