Saigon Jewelry Company gold bar rose 0.17% to VND120.8 million (US$4,626.58) per tael. Gold ring increased by 0.18% to VND117.2 million per tael.
Gold has jumped 43.5% so far this year in Vietnam.
Globally gold prices edged higher on Thursday, helped by a slight retreat in the dollar and bond yields, while investors kept a close tab on trade negotiations as U.S. President Donald Trump broadened his tariff war, Reuters reported.
Spot gold rose 0.3% to $3,322.46 per ounce by. U.S. gold futures were up 0.3% at $3,331.
"The market impact of tariffs seems to lessen with each new headline. Tariff fatigue is here, and traders need a new catalyst to awaken volatility from its lull," said Matt Simpson, a senior analyst at City Index.
Lower yields reduce the opportunity cost of holding non-yielding bullion, while a weaker dollar makes gold cheaper for holders of other currencies.