The 1931-D is one of the rarest of all Saint-Gaudens $20s. Yet, like the other post-1928 Saints, virtually all are known in uncirculated grades ranging from about MS60 to MS65. A handful of examples in the MS66-and-higher range have traded hands at auction over the years, and these take solid six-figure prices.
| coinage-type | Saint Gaudens gold double eagle |
| desg | MS |
| designer | Augustus Saint-Gaudens |
| diameter | 34 |
| edge | Reeded |
| fineness | 0.9 |
| material | 90% gold; 10% copper |
| mint-mark | D |
| mintage | 106,500 |
| ngc-id | 26GP |
| obverse-description | Liberty is portrayed standing on a rock, holding a torch in her right hand and an olive branch in her left. The word LIBERTY appears on the top periphery surrounded by stars. The date is stamped on the right side of the coin, just above the rock. |
| pcgs-link | 9193 |
| pcgs-number | 9193 |
| reverse-description | A crescent sun appears at the bottom as if rising on the horizon with long rays extending to the top of the coin. A flying eagle covers the central portion, atop the rays. The words UNITED STATES oF AMERICA, TWENTY DOLLARS appear on the top periphery. |
| weight-grams | 33.436 |
| weight-ounces | 0.9675 |
| year-display | 1908-1933 |