Gold and silver hallmarks are somewhat more universal. Gold purity is measured in karats with 24 karats representing the highest value. Gold jewelry marked "750" or "18k" indicates a blended ...

The yellow metal slumped 1.4% to $1,552.80 Wednesday marking a nine-month low. That's after gold prices slid below $1,600 an ounce in Q1 on ... If you look at a chart of gold prices over the ...