After the fifth adjustment at 4.53pm, gold bar is sold at Bt19,150 per baht weight while gold ornament is sold at Bt19,550.
Gold has tumbled 20 per cent this year, falling into a bear market last month, as some investors lost faith in the metal as a store of value and equities rallied on confidence that the US economy is improving.
In Singapore, gold for immediate delivery on Monday lost as much as 1.5 per cent to US$1,338.87 an ounce, the lowest price since April 18.