Investment-Grade Coins
Chart below outlines a $10K initial purchase in 2010 of Gold Eagle Proof 70 coins vs Bullion.*
Gold American Eagle Proof 70 Coins
America's #1 Investment Coin
Understanding Gold American Eagle Investment Groups
In 1985, Congress passed the Bullion Coin Act, which led the U.S. Mint to launch its first major project—the Gold American Eagle 1 oz coin, crafted entirely from gold sourced within the United States. Each year, the U.S. Treasury issues two versions of this coin: a standard "Mint State" edition intended for bullion trading and circulation, and a premium "Proof" edition designed for serious investors focused on medium- and long-term wealth preservation.
Over time, specialized coin groups were introduced to classify and distinguish American Gold Eagle Proof 70 coins. These groups reflect broader economic and social trends that have shaped the market across different periods.
Gold Eagle Investment Groups
Classic Group (1986-1991)
The founding years of the Gold American Eagle program
Modern Group (1992-2000)
A period of stable growth and collector interest
Millennium Group (2001-2008)
Coins minted during significant economic shifts
Resurgent Group (2010-2021)
Post-recession era showing renewed precious metals interest
Emerging Group (2021-Current)
The new Type 2 design era with enhanced features
Learning to Diversify Within Precious Metals
Diversification is a core investment philosophy designed to balance and reduce overall risk. Assets are typically divided into categories, or "classes." When two assets react in the same way to shifts in the economy, they are considered "correlated." When they move differently under the same conditions, they are "non-correlated." For example, stocks and precious metals fall into different asset classes, since they generally don't rise and fall together. This is why many investors include both in their portfolios—and it's one of the key reasons people choose gold.
What many investors overlook, however, is that the same diversification strategy can be applied within the gold market itself. At Citadel Gold, we emphasize balancing a portfolio across the two main categories of precious metals: bullion and Certified Investment Grade Coins.
Two Categories of Precious Metals
Bullion Coins
Mint State bullion coins—such as the Gold American Eagle—are priced based on fluctuations in the global commodities market, particularly the COMEX exchange. Bullion may come in different forms, such as minted coins, gold bars, or other shapes, but they are all valued primarily by their weight. The worth of bullion, often referred to as "raw gold," shifts minute by minute with the metal's market price, also known as the "spot price."
Investment Grade Coins
Certified Investment Grade Coins provide an additional layer of diversification. Issued by the U.S. Mint and other respected world mints, these coins have consistently shown performance that often outpaces bullion and many rare coin categories. Unlike bullion, which is directly tied to global commodity markets and influenced by central banks, the Federal Reserve, and political shifts, Investment Grade Coins are supported by limited supply and demand dynamics. Their value is therefore more stable and less volatile.
The Power of Balance
True Diversification Within Precious Metals
At Citadel Gold, we believe that true diversification within precious metals means holding both bullion and Investment Grade Coins. Bullion delivers direct exposure to gold's market value, while Certified Investment Grade Coins add stability, reduce volatility, and protect against economic uncertainty.
Together, they create a more resilient precious metals portfolio—one positioned not only to withstand market swings but also to support long-term financial security and growth.
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The Bottom Line
You're making a smart move by diversifying into precious metals. But it's equally important to diversify within precious metals—otherwise, you risk facing the same ups and downs you've likely experienced with traditional investments.
Gold Coins for True Investors
Gold Eagle Proofs that have been independently certified in flawless, "museum-quality" condition are classified as Investment Grade Coins. Their rarity and premium standing place them in a different category from standard bullion coins.
Unlike bullion, their value is not directly tied to daily fluctuations in the gold "spot price." Because of consistently rising demand and a limited supply, these coins tend to hold their value more steadily over time. In fact, the performance of many Investment Grade Coins has historically outpaced gold bullion, making them a strong choice for investors seeking long-term protection and growth.
For this reason, Citadel Gold recommends Investment Grade Coins as a reliable store of wealth—a safeguard against downturns in the bullion market and broader economic volatility.
How Investment Grade Coins Are Valued
Proof 70 Population
Pricing is largely determined by the "Proof 70 population," a measure of how many flawless examples exist worldwide. The smaller the population, the greater the scarcity—and, in turn, the higher the potential value.
Collector Portfolios
Serious collectors and investors often build comprehensive portfolios of these coins, assembling complete year-by-year sets and acquiring multiples of the most sought-after mintages whenever possible.
Sourcing
At Citadel Gold, these exceptional coins are sourced through estate sales, private auctions, bank vault liquidations, client buy-backs, national coin shows, and our network of rare coin dealers.
Private Client Services
Clients enrolled in our Private Client Services Division receive exclusive first access to these premium sets before they are released to the general public.
The Ultimate Gold Eagle Investment
The Date Run Collection
This exclusive collection is designed for discerning investors who understand that a complete Date Run of Gold American Eagle Proof 70 coins represents a rare and unmatched opportunity in tangible asset investing. Regarded as the cornerstone of Gold Eagle portfolios, this set stands as the pinnacle achievement for investors who recognize that in coin investing, the entire collection carries greater value than the sum of its individual parts.
The Gold American Eagle Date Run features one coin from each denomination for every year of mintage. This includes the 1 oz coin from 1986, both the 1 oz and 1/2 oz coins from 1987, and the full range of denominations—1/10 oz, 1/4 oz, 1/2 oz, and 1 oz—from 1988 through the present (with the exception of 2009, when Proof Gold Eagles were not minted). This makes it the definitive Gold American Eagle collection.
For investors seeking both protection and long-term growth, this portfolio offers stability beyond the volatility of the stock market and insulation from the uncertainties of the bullion commodities market.
Learn About the Date Run
Important Note
The U.S. Mint did not produce Proof Gold American Eagle coins in 2009. Instead, the 2009 Ultra High Relief Double Eagle Coin was issued.
Gold American Eagle Proof or Bullion?
Beyond pricing and market behavior, the production process sets bullion and Proof coins apart. Proof coin production is an intricate, labor-intensive process that requires precision and expert oversight. Polished blanks are carefully hand-fed into a coin press, where each blank is struck multiple times. This repeated striking creates the sharp, detailed imagery and flawless high-sheen background that distinguish Proof coins, especially those earning the highest grades.
Grading and Value
How Proof Coins Are Graded
Industry Standards
The value of an Investment Grade Proof coin is reinforced by its quality score, or grade, issued by trusted industry authorities such as the Numismatic Guaranty Corporation (NGC) or the Professional Coin Grading Service (PCGS).
The Sheldon Scale
Both NGC and PCGS use the Sheldon Scale, a system originally developed in 1949 by William Herbert Sheldon and refined in the 1970s. This scale ranks coin quality from 1 (poor) to 70 (perfect).
PF70 Grade
Only a very small percentage of Proof coins ever achieve the coveted PF70 grade, representing flawless condition.
Citadel Gold's Advantage
Proof coins purchased directly from the U.S. Mint are not pre-graded. At Citadel Gold, we remove that burden by offering a Proof coin inventory made up almost entirely of pre-graded PF70 pieces.
A Comprehensive History of the Gold American Eagle
In December 1985, during his second term, President Ronald Reagan signed the Gold Bullion Act of 1985, officially authorizing the creation of the Gold American Eagle. The U.S. Mint released the first coins the following year, marking the beginning of one of America's most iconic bullion programs.
As the nation's official gold bullion coin, the Gold American Eagle is produced annually in two versions: the widely available "Business Strike" bullion coins, intended for general circulation in the bullion market, and the more limited investment-grade Proof coins, designed for long-term investors. In 1986, the coin debuted as a one-ounce piece, followed by both one-ounce and half-ounce versions in 1987. Since then, the Mint has expanded the program to include quarter-ounce and tenth-ounce variations, creating a full four-denomination lineup.
By law, Gold American Eagles must be struck from gold mined within the United States, reinforcing their status as a truly American coin. To enhance durability, the Mint alloys the coins with small amounts of silver and copper, producing a 22-karat composition (91.67% pure gold) known as "crown gold."
Historical Context
Origins of the "Eagle"
Coinage Act of 1792
The term "eagle" dates back to the Coinage Act of 1792, which established the U.S. Mint, standardized national coinage, and set the dollar as the country's base currency.
Denominations
Under the Act, the $10 gold piece was called an "eagle," with fractional versions such as the half-eagle ($5) and quarter-eagle ($2.50), as well as the later double eagle ($20) introduced in 1849.
Saint-Gaudens' Double Eagle
From 1792 until 1933, Eagles circulated as a central part of U.S. coinage and became the foundation for some of America's most celebrated numismatic designs—none more famous than Augustus Saint-Gaudens' Double Eagle, widely regarded as a masterpiece of U.S. coinage art.
The 1933 Turning Point
The End of Gold Circulation
The production of gold Eagles came to a halt in 1933 when President Franklin D. Roosevelt signed Executive Order 6102, which prohibited private ownership of gold coins, bullion, and certificates. The order, later reinforced by the Gold Reserve Act of 1934, was designed to combat the economic crisis of the Great Depression by curbing hoarding. As a result, gold coins lost their legal tender status, and circulation ceased.
This legislation also prevented more than 445,000 of the 1933 Double Eagles from being released. Almost all were ordered melted, with just two preserved in the U.S. National Numismatic Collection. Over time, investigations revealed that around 20 coins had been unlawfully taken from the Mint. Nine were later recovered and destroyed, but 11 survived in private hands.
Today, only 13 known 1933 Double Eagles exist, making it one of the rarest and most coveted coins in the world.
Design of the Gold American Eagle
The Gold Bullion Act of 1985 not only authorized the creation of the Gold American Eagle but also set clear design requirements for the $50 coin. By law, the largest denomination must feature an image "symbolic of Liberty" on the obverse and a reverse design showing "a family of eagles, with the male carrying an olive branch while flying above a nest with a female eagle and hatchlings."
The coin must also include inscriptions of its $50 face value, gold content in troy ounces, the year of issue, and the traditional mottos associated with U.S. currency: "Liberty," "In God We Trust," "United States of America," and "E Pluribus Unum." In addition, each Gold American Eagle must be struck with reeded edges.
Obverse Design
Saint-Gaudens' Masterpiece
Lady Liberty
The design depicts Lady Liberty in motion, striding forward with a torch in her right hand and an olive branch in her left.
Artistic Details
Her flowing hair and gown are framed by rays of sunlight rising from the horizon, with the U.S. Capitol building faintly visible in the background.
Historical Significance
In 1904, President Theodore Roosevelt, frustrated by what he called the "hideousness" of U.S. coinage, personally commissioned his friend, sculptor Augustus Saint-Gaudens, to redesign coins.
High Relief Vision
Roosevelt urged Saint-Gaudens to create coins in a high-relief style reminiscent of ancient Greek coinage, which he admired for its beauty.
Reverse Design
The Family of Eagles
Designer
This design was created by artist Miley Busiek, who first used it on President Ronald Reagan's inauguration medallion.
Inspiration
Busiek drew inspiration from Reagan's 1980 Republican National Convention speech, which emphasized unity and collective purpose.
Symbolism
Instead of showing the eagle as a solitary figure, she envisioned a family of eagles working together, symbolizing strength and continuity for future generations.
2021 Type 2
The 2021 Gold American Eagle Type 2 Proof New Reverse Design
The obverse of the Gold American Eagle continues to feature Augustus Saint-Gaudens' iconic full-length portrayal of Lady Liberty, first introduced on the $20 Double Eagle in 1907. For the 2021 Type 2 release, the U.S. Mint enhanced this historic design by returning to Saint-Gaudens' original bronze casts and archival assets.
These refinements restored legacy details such as the Capitol building, stars, torch, sun rays, and other design elements, ensuring a closer reflection of the artist's vision. Notably, Liberty's eyes now appear more defined, the sun's rays have been reshaped, Saint-Gaudens' initials were reinstated, and the olive branch motif was refined. Additionally, the 2021 one-ounce Proof issue introduced a reeded-edge variation as an anti-counterfeiting measure.
New Reverse
Jennie Norris' Eagle Portrait
Since its debut in 1986, the Gold American Eagle Proof coin had always featured the "Family of Eagles" reverse, created by Miley Busiek Frost and sculpted by Sherl J. Winter. However, the 2021 Type 2 issue marked the program's first design transition in 35 years.
The new reverse design, created by Jennie Norris of the Mint's Artistic Infusion Program, presents a bold, close-up portrait of an American eagle. Inspired by her experience as a volunteer raptor handler, Norris sought to capture the intensity and nobility of the eagle's gaze. "The American Eagle is such a noble bird," Norris explained, "I wanted to reflect his pride and timeless wisdom through the closeness of his stare."
Unlike Busiek's narrative of a family of eagles in flight and in the nest, Norris's design focuses on stillness and presence. The eagle's penetrating gaze, paired with intricate lifelike details, gives the impression of a living, breathing creature.
West Point Mint
Today, all Proof Gold American Eagles are produced at the West Point Mint in West Point, New York—also the site of the U.S. Military Academy. The facility is responsible for striking every Proof and Uncirculated Bullion American Eagle in gold, silver, platinum, and palladium, as well as all gold commemorative coins and select silver commemoratives.
The West Point Mint was originally built in 1937, just four years after President Franklin D. Roosevelt ordered all privately owned gold to be surrendered to the U.S. government during the Great Depression. Initially established as a bullion depository, it specialized in storing silver and quickly earned the nickname "The Fort Knox of Silver."
Although the site did not gain official U.S. Mint status until 1988—two years after Gold American Eagles first entered circulation—the West Point facility was already producing U.S. coinage during its earlier years. In fact, coins bearing the "W" mint mark were struck as early as 1983, five years before West Point was formally recognized as an official branch of the Mint.
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This chart is based on historical gold bullion prices as reported by the official Commodities Exchange (COMEX). Performance of Gold American Eagles reflects the average ask price of all Investment Grade Proof 70 coins and sets included in the Classic, Modern, and Millennium Groups, as offered by Citadel Gold during the period shown. Please note: as with all investments, there are inherent risks, and past performance does not guarantee future results. Representatives of Citadel Gold are not licensed investment advisors. You should consult with an independent financial advisor before making any decision regarding the purchase or sale of an investment asset.
