Investing in Precious Metals – American 1, 2, 5, 10, 20 and 50 Dollar Gold Coins For long term investment, gold coins and other precious metals are difficult to beat. You can even have gold coins in an Individual Retirement Account (IRA), a Gold IRA. Learn about the gold and silver coins and bars that can be used in an IRA. in Public bookmarkswith 50_dollar_gold_coinbeneficiary_iragold_ira_investing Note: For long term investment, gold coins and other precious metals are difficult to beat. You can even have gold coins in an Individual Retirement Account (IRA), a Gold IRA. Learn about the gold and silver coins and bars that can be used in an IRA.