Buying Mint State ungraded Coins for Profit
Buying Mint State (MS) ungraded coins—often called “raw” coins—can be highly profitable because you are essentially arbitrating the value difference between an uncertified coin and a certified one. If you can accurately spot a high-quality coin that the seller mispriced or under-graded, you can purchase it cheaply, send it to a professional grading service, and sell it at a significant premium.
Here is exactly how investors turn a profit with raw Mint State coins.
The Profit Mechanism: The Grading Premium
The core strategy relies on value asymmetry [finance]. A coin’s value does not scale linearly; it climbs exponentially at the top tier of the Mint State scale (MS-60 to MS-70).
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- The Price Gap: A raw coin is generally priced cautiously by dealers as a baseline MS-60 or MS-63 because its condition isn’t guaranteed.
- The Certification Bump: If you buy a coin for an MS-62 price, but your eye appeal assessment is correct and it scores an MS-65 or higher at a third-party grading service like PCGS or NGC, its market value can double, triple, or increase by 10x.
Core Strategies for Profit
Successful raw coin flipping generally follows three distinct pathways:
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- Cherrypicking Varieties: Look for rare die varieties, errors, or mintmarks that the seller overlooked. Buying a rare variety at the “common” Mint State price yields instant equity.
- Grading Arbitrage: Spotting “under-graded” coins sitting in estate sales, junk silver bins, or poorly photographed online auctions.
- Bulk Submission: Buying large quantities of uncirculated modern coins directly from mint sets, selecting the absolute flawless examples, and submitting them in bulk to get the elusive MS-70 grade.
The Hidden Risks & Costs
While profitable, this is an advanced strategy that carries steep wealth-degrading risks if you lack expertise.
Risk/Cost Factor Impact on Profit Mitigation Strategy Grading Fees Submission, shipping, and insurance costs eat into thin margins.Artificial Cleaning Cleaned or altered coins are denied straight grades, wiping out value.Counterfeits Ungraded coins lack authenticity guarantees.Subjective Grading Your MS-65 estimate might be judged as an MS-62 by PCGS/NGC.
| Only submit coins where the price gap between grades is at least $50–$100. | ||||||||||
| Learn to spot unnatural luster and hairline scratches under a 10x loupe. | ||||||||||
| Buy a high-precision scale and digital calipers; only buy from reputable sources. | ||||||||||
| Be conservative. Calculate your profit math assuming the coin grades one level lower than you think. |
Buying Mint State ungraded Coins for Profit