Karat ke motsoako oa khauta o kopantsoeng le litšepe tse ling "K" ea khauta e nkiloeng ho lentsoe lesele "Karat", polelo e felletseng: Khauta ea karat, "AU" kapa "G" ke letšoao la machaba le sebelisetsoang ho bontša tlhoeko ea khauta (ke hore, palo ea khauta ho eona) Mabenyane a khauta a rosa a tšoauoa ka khauta e nyane, theko e tlase, 'me a ka etsoa ka mebala e fapaneng,' me a ntlafatsa ho thatafala, ha ho bonolo ho deformation le ho roala. K khauta ho ea ka bongata ba khauta le lintlha tsa khauta 24K, khauta ea 22K, khauta ea 18K, khauta ea 9K.
K mabenyane a khauta a nang le meralo e metle le e monate, a bobebe 'me a ke ke a ba boima leha e le bofe letsohong la hao kapa molala kapa tsebe.Ha a na metsoako e kotsi, ha a na nickel, ha a na loto, ha a na cadmium. Lisebelisoa tsena tse sireletsehileng li na le kutlo e tlase le ho hanyetsa oxidation, ha ho kotsi ho bophelo bo botle.