With certification One Troy ounce is a commonly used weight for various rounds and coins produced by world mints. It is considered one of the most standard sizes in the precious metals market. Many renowned coins, such as the American Silver Eagle from the United States Mint, the Silver Britannia from The Royal Mint in the United Kingdom, the Silver Maple Leaf from the Royal Canadian Mint, and the Silver Kangaroo from the Perth Mint, all weigh precisely one Troy ounce. These coins are highly popular among precious metal enthusiasts due in part to their consistent weight and purity