The 1990-D Kennedy Half Dollar has one of the higher mintages for the series. Usually Kennedy Half Dollars with mintages of 20 million or higher are considered really common. However, in gem condition the 1990-D Kennedy Half Dollars has proved to be scarcer than many of the issues in the series. Less than 500 coins have graded MS66 or higher. In MS67 condition, less than a few dozen are known with no others exisiting in any higher grade. Therefore, it is one of the scarcer issues in high gem condition.