One troy ounce is equal to 1.097 standard ounces, making it around 10% heavier. The name dates back to the 16th-century French town of Troyes, which was an important trade center that standardized ...

BASE PRICE: Check charts on a Web site like Kitco.com to find the current price of pure, 24-karat gold. The price is quoted for one troy ounce, which equals 31.1 grams. Recently, gold prices have ...