Nestled among the bustling gold shops of Hang Bac Street - where modern jewelry glitters under bright yellow lights in expansive glass displays - there sits a tiny jewelry workshop that is strangely modest.

Without a flashy sign or dazzling lights, the Hong Chau jewelry shop, owned by Nguyen Chi Thanh, remains a place where the steady, rhythmic clink-clink of the hammer can still be heard daily. It is a humble space that stands in stark contrast to the frantic pace of the city streets outside.