Mint State 65 is one of the most popular grades to own for the U.S. $20 Saint Gaudens gold coins. Given that the Saint Gaudens gold cons were minted after Liberties, and are therefore newer and experienced less use and circulation, specimens from each conditional grade are a fair bit more common, and therefore more affordable, than a Liberty counterpart. Price performance for the MS 65 St. Gaudens is most closely mirrored by the MS64 $20 Liberty. According to PCGS (Professional Coin Grading Company), MS65 $20 St. Gaudens have a known population of 199,536 coins. By comparison, 48,956 $20 Liberty gold coins exist in MS64.
MS65 $20 Saint Gaudens, like their counterparts, are near cycle lows in terms of their premiums to underlying gold value. Their highest rarity levels were achieved in the 1980's and shouldn't be necessarily expected to repeat. In interpreting the graphs below, the price graph listed first shows the nominal value history for the MS65 $20 Saint Gaudens over the past fifteen years. The second graph shows the premium relative to underlying gold content. The premium as listed on the y (vertical)-axis should be read as a multiplier of the gold price. In other words, a coin premium of 2 is equal to double the gold price, and a coin premium of 4 is equal to 4 times the gold price. Cycle lows have shown premiums as low as 1.40 (40%) over gold, while recent highs in 2009 saw premiums at 2.8x gold.