Both the American Gold Eagle and the Gold Buffalo contain exactly 1 troy ounce of pure gold, so their melt value is identical: $4,134.80 at spot prices of October 7, 2026. The choice between them comes down to purity preference, fractional size access, premium, and intended use. For most buyers, Gold Eagles offer better flexibility and slightly lower premiums. For buyers who specifically want 24-karat gold, the Buffalo delivers that in a government-issued format.
Use the gold value calculator to find today’s melt value for any quantity of either coin at live spot.
Quick Comparison
| Feature | American Gold Eagle | American Gold Buffalo |
|---|---|---|
| First minted | 1986 | 2006 |
| Purity | .9167 (22-karat) | .9999 (24-karat) |
| Pure gold content | 1 troy oz | 1 troy oz |
| Total coin weight | 33.931 g (1.0909 troy oz) | 31.103 g (1 troy oz) |
| Composition | 91.67% Au, 3% Ag, 5.33% Cu | 99.99% Au |
| Diameter | 32.7 mm | 32.7 mm |
| Face value | $50 | $50 |
| Fractional sizes | 1/10, 1/4, 1/2, 1 oz | 1 oz only (1 oz regular program) |
| IRA-eligible | Yes | Yes |
| Authorizing legislation | Gold Bullion Coin Act of 1985 | Presidential Dollar Coin Act of 2005 |
Sources: US Mint coin specifications; govmint.com — Gold Eagle vs. Gold Buffalo.
Same Gold, Different Formula
The most common misconception about these two coins is that the Eagle “has less gold” because it is only 22-karat. This is not true.
A 22-karat alloy means 91.67% gold by weight. To deliver a full troy ounce of pure gold in a 22-karat coin, the Eagle must weigh more than 1 troy ounce in total. The math:
- Pure gold needed: 1 troy oz = 31.1035 g
- At 91.67% gold: 31.1035 ÷ 0.9167 = 33.931 g total coin weight
- 33.931 g ÷ 31.1035 g/ozt = 1.0909 troy oz total weight
The extra 2.828 g (1.091 troy oz × 0.0833 non-gold fraction) is silver (3%) and copper (5.33%). The Eagle is heavier than the Buffalo, but both contain exactly one troy ounce of pure gold. As govmint.com explains: “Both iconic American gold coins contain exactly 1 Troy ounce (31.103 grams) of pure gold.”
Melt Value Comparison
Since both coins contain exactly 1 troy oz of pure gold, melt values are identical at any given spot price:
| Spot price | 1 oz Gold Eagle melt value | 1 oz Gold Buffalo melt value |
|---|---|---|
| $3,500/ozt | $3,500.00 | $3,500.00 |
| $4,000/ozt | $4,000.00 | $4,000.00 |
| $4,134.80/ozt (Oct 7, 2026) | $4,134.80 | $4,134.80 |
| $4,500/ozt | $4,500.00 | $4,500.00 |
The gold content — not the alloy formula — determines melt value.
Purity: Does 24-Karat Matter?
The Buffalo’s .9999 purity has practical significance in some situations:
International markets: Some countries and buyers, particularly in Asia, prefer .9999 fine gold coins because they match a global standard for investment gold (Canadian Gold Maple Leaf, Austrian Philharmonic, and others are also .9999). For domestic US resale, both coins are treated identically by most dealers.
Coin IRAs: Both coins qualify, but .9999 is more than adequate. The IRS minimum for gold in a self-directed IRA is .995 fineness. Both Eagles (by specific statutory approval despite lower fineness) and Buffalos meet this threshold.
Assay confidence: A .9999 coin has essentially no impurities; a .9167 coin’s minor alloy additions are documented and consistent. For standard bullion investment, the difference is immaterial.
Design and History
Gold Eagle: The obverse features Augustus Saint-Gaudens’ Liberty design, adapted from his famous 1907 Double Eagle $20 gold coin — the design Theodore Roosevelt commissioned because he considered existing US coinage insufficiently beautiful. The reverse features a family of eagles in a nest. First struck in 1986, making 2026 Eagles the 40th anniversary of the series.
Gold Buffalo: The design reproduces James Earle Fraser’s 1913 Buffalo Nickel — a Native American composite portrait on the obverse and an American bison on the reverse. The Buffalo Nickel’s bison was based on Black Diamond, an animal Fraser sketched at the Central Park Zoo. Introduced in 2006 as the first 24-karat gold coin ever minted by the US Mint, created to compete with the Canadian Gold Maple Leaf.
Both designers are historically connected: Fraser studied under Saint-Gaudens, making the two gold coin designs part of the same artistic lineage.
Premiums and Cost
In most market conditions, Gold Eagles trade at premiums of $30–$80 below comparable Gold Buffalos per ounce. Over a multi-ounce position, that gap compounds:
At October 7, 2026 spot ($4,134.80/ozt), illustrative retail prices:
| Product | Approx. price | Premium over spot |
|---|---|---|
| 1 oz Gold Eagle | ~$4,250 | ~$115 (2.8%) |
| 1 oz Gold Buffalo | ~$4,290 | ~$155 (3.7%) |
These premiums fluctuate. Check current dealer listings for precise pricing. The gold value calculator shows the melt value baseline; add the current premium from a reputable dealer to get the actual buy price.
Fractional Sizes
Gold Eagles are available annually in four sizes:
- 1/10 oz: face value $5, contains 0.1 troy oz gold
- 1/4 oz: face value $10, contains 0.25 troy oz gold
- 1/2 oz: face value $25, contains 0.5 troy oz gold
- 1 oz: face value $50, contains 1 troy oz gold
Fractional Eagles carry higher premiums per ounce — the 1/10 oz Eagle can run 15–25% over spot because fabrication cost is divided over much less gold. But they allow buyers to enter the gold market without committing to a full-ounce purchase (~$4,134 at current prices).
Gold Buffalos are available only in 1 oz for the regular bullion program. Fractional Buffalos appeared briefly in 2008 and have not been repeated.
Which to Buy
Choose the Gold Eagle if:
- You want fractional sizes (1/10 oz is accessible and widely recognized)
- You prioritize maximum domestic dealer liquidity
- You want the lower premium per ounce
- You are building a large position where the per-coin premium gap matters
Choose the Gold Buffalo if:
- You specifically want .9999 fine gold
- You prefer the Buffalo nickel design aesthetic
- You plan to hold long-term (the purity distinction matters more in some international sale scenarios)
- Numismatic upside interests you — early Buffalo dates and proof coins can carry collector premiums
Buy both if you are not choosing: Many gold holders use Eagles for fractional flexibility and Buffalos for the design. There is no reason to pick only one if you want both.
This is not investment advice; consult a financial advisor before making significant purchases. Note that numismatic value of collector grades and key dates can exceed melt value for both coin types.