The troy ounce (480 grains) is heavier than the avoirdupois ounce (437.5 grains). A grain is 64.79891 milligrams (mg); therefore one troy ounce is 31.1034768 grams (g). This measures out to be about 10 percent more than the avoirdupois ounce, which is 28.349523125 g. 1 troy ounce = 1.09714286 ounces (avoirdupois)
4 days ago · Gold Valuation Tools: 1. Gold Testing Kit. Want to know if your gold is real? A simple acid test will give you confirmation. 2. Digital Scale. When weighing gold you want to be as precise as possible. We recommend a scale that is accurate to .01 or 1/100 gram.