The 1931 Saint-Gaudens double eagle is one of the rarest coins in the series, easily ranking among the top five rarest in terms of overall population -- not counting the 1933 Saint, that is. And while the 1931 Saint-Gaudens $20 is a very rare coin, it is usually found at or verging on Gem quality, with decent strike and luster and relatively few surface distractions.
| 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 |
| mintage | 2,938,250 |
| ngc-id | 26GN |
| 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 | 9192 |
| pcgs-number | 9192 |
| 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 |