Saigon Jewelry Company gold bar dropped 0.40% to VND148 million (US$5,621.93) per tael. A tael equals 37.5 grams or 1.2 ounces.
Gold ring declined 0.34% to VND147.8 million per tael. Gold prices in Vietnam have fallen 3% since the beginning of the year.
Globally gold prices were steady at $4,191.09 per ounce as investors assessed U.S.-Iran peace talks, while rising expectations of a Federal Reserve interest rate hike in December weighed on the metal, Reuters reported.
The U.S. waived sanctions on Iran for 60 days from Monday after the first talks under a nascent peace deal, while officials reported a sustained lull in fighting in Lebanon under the agreement aimed at ending hostilities across the region.
U.S. Vice President JD Vance said talks with Iranian officials in Switzerland had laid a good foundation for a final peace deal, although Iran denied that it had begun discussions of its nuclear program.