Based on the current gold spot price ($1,920 per troy ounce as of my last update in September 2022) and the weight of the coin (1.672 grams or 0.05374 ounces), the intrinsic gold value of a 1 dollar 1854 gold coin is approximately $103.56 based solely on its gold content.
However, as with many collectible coins, the value can be influenced by various factors beyond its intrinsic metal value. These factors can include the rarity, condition, and historical significance of the coin, as well as market demand and overall collector interest.
If the 1854 gold dollar coin you have is considered to be in good condition and has numismatic value, its market value could be significantly higher than its intrinsic value. Rare or high-quality examples may command premiums. For instance, according to PCGS CoinFacts (Professional Coin Grading Service), an 1854 gold dollar graded "Mint State 65" can have a market value exceeding several thousand dollars.
It is important to note that the exact value of a specific 1854 gold dollar coin can vary widely depending on its condition and market demand. To determine the precise value of your coin, it's advisable to consult reputable numismatic experts, collectors, or appraisers who can assess the coin's rarity, condition, and overall numismatic significance.