Gold futures on the COMEX division of the New York Mercantile Exchange fell below 1,300 dollars per ounce on Tuesday.

The prices fell after the hotly anticipated meeting between the top leader of the Democratic People's Republic of Korea (DPRK) Kim Jong Un and U.S. President Donald Trump in Singapore concluded and ahead of an expected interest-rate hike by the Federal Reserve.

The most active gold contract for August delivery went down 3.8 dollars, or 0.29 percent, to close at 1,299.4 U.S. dollars per ounce.

The U.S. dollar index, which measures the buck against six rivals, went up 0.23 percent to 93.820 as of 2000 GMT.

Gold and the dollar typically move in opposite directions, which means if the dollar goes up, gold futures will fall.

As for other precious metals, silver for July delivery fell 6.1 cents, or 0.36 percent, to settle at 16.891 dollars per ounce. Platinum for July dropped 4.9 dollars, or 0.54 percent, to close at 901.5 dollars per ounce.