K14gf is a gold-plated process where 14 karat gold accounts for 1/20 of the total weight. It is bonded tightly, so it rarely peels off even after long-term use. Many brands use it as a jewelry material because it allows you to easily enjoy the luxurious shine of gold.
Additionally, since it is nickel-free, it is less likely to cause allergies, making it relatively safe for those with metal allergies to use.