The Royal Canadian Mint’s Gold Maple Leaf (GML) coins are among the world’s most popular pure gold coins, having sold more than 25 million troy ounces since their introduction in 1979. In 1983, the GML was also the first bullion coin to achieve the superior standard of 99.99% purity. All random date GML coins in this price category are dated 1983 and later and contain .9999 fine gold. This is the best value for investing in gold if you prefer coins over bars. The 1 oz GML is minted with one troy ounce (31.1 grams) of .9999 fine gold, has a $50 dollar face value and come in a variety of years. (GML1)