2018-S Roosevelt Dime Value: Is Your Proof Coin Worth Money?
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The 2018-S Roosevelt Dime is worth anywhere from $2 in standard proof condition to over $50 for high-grade Deep Cameo specimens. While these coins weren’t made for everyday pockets, finding one in a collection or a “mint run” can be an exciting discovery for any casual collector.
| Condition / Grade | Estimated Value |
|---|---|
| PR 65 (Standard Proof) | $2.00 – $4.00 |
| PR 69 Deep Cameo | $10.00 – $15.00 |
| PR 70 Deep Cameo (Perfect) | $35.00 – $65.00 |
| Silver Reverse Proof (RP 70) | $40.00+ |
What Makes the 2018-S Roosevelt Dime Special?
The “S” mint mark on a 2018 Roosevelt dime signifies that the coin was struck at the San Francisco Mint. Unlike the dimes you receive as change at the grocery store—which usually feature “P” (Philadelphia) or “D” (Denver) marks—the San Francisco coins are typically “Proof” coins.
If you are unsure whether your found treasure is a common strike or a rare Proof, you can use a top coin identifier and value app to scan the surface and details immediately.
Proof coins are manufactured using a special process. The planchets (metal blanks) are polished, and the dies strike the coin multiple times to ensure sharp, crisp details. This results in a mirror-like background and frosted foreground.
Because these coins were sold in official United States Mint sets rather than released into circulation, finding one in “the wild” is quite rare. If you do find one in your pocket change, it is likely an “impaired proof,” meaning someone spent it by mistake, and its value may be slightly lower due to wear.
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Understanding the Two Varieties of 2018-S Dimes
In 2018, the San Francisco Mint actually produced two distinct types of Roosevelt dimes for collectors: the standard copper-nickel clad version and the 90% silver version.
Distinguishing between the two is vital because the silver content adds automatic “melt value” regardless of the coin’s condition. The clad version consists of a copper core with a nickel coating, while the silver version is heavy and has a distinct “ring” when gently dropped.
Many collectors use the CoinKnow app to track which variety they have in their inventory. It helps to keep a digital record of whether your 2018-S is a base metal proof or a precious metal strike.
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The value of these coins is heavily influenced by their metal content. For instance, the 2018 dime value information shows that silver proofs carry a premium even if they aren’t in perfect 70-grade condition.
| Composition Type | Metal Content | Average Market Price |
|---|---|---|
| Clad Proof (S) | 75% Copper, 25% Nickel | $3.50 |
| Silver Proof (S) | 90% Silver, 10% Copper | $12.00 |
| Reverse Proof (S) | 90% Silver | $45.00 |
The Rarity of the 2018-S Reverse Proof Dime
One of the most exciting releases of that year was the 2018-S Silver Reverse Proof Roosevelt Dime. This coin was part of the 50th Anniversary San Francisco Silver Mint Set.
Unlike a standard proof, where the background is shiny and the images are frosted, a Reverse Proof has a frosted background and a mirror-like finish on Roosevelt’s portrait. This creates a stunning visual contrast that is highly sought after by modern coin enthusiasts.
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According to recent market trends, the comprehensive 2018 Roosevelt dime price data indicates that these special anniversary coins maintain a much higher value than standard proofs.
When assessing a Reverse Proof, look for “spotting” or “milk spots,” which are white cloudy patches that can form on silver coins. A clean, spot-free 2018-S Reverse Proof is the “holy grail” for this specific year’s mintage.
Grading and How It Impacts 2018-S Roosevelt Dime Value
For modern coins like the 2018-S, “condition” is everything. Professional graders like PCGS or NGC use a 70-point scale. Since proof coins are handled with care at the mint, many of them arrive in PR 68 or PR 69 condition.
The jump in value from a PR 69 to a PR 70 is significant. A PR 69 might be worth $12, while a PR 70 (a visually perfect coin) can fetch $50 or more.
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If you are evaluating your collection at home, tools like CoinKnow can help you compare high-resolution photos of graded coins against your own. This helps you decide if it’s worth the $20-$30 fee to have your coin professionally certified.
Most everyday Americans find “impaired” proofs. These are coins that were once proofs but have scratches (hairlines) from being touched or circulated. An impaired 2018-S is usually only worth its face value (10 cents) or its silver value if it’s the 90% version.
| Grading Tier | Description | Price Range (Clad) |
|---|---|---|
| Impaired | Scratched/Circulated | $0.10 – $0.50 |
| PR 67-68 | Minor imperfections | $4.00 – $7.00 |
| PR 69 DCAM | Near Perfect | $12.00 |
| PR 70 DCAM | Museum Quality | $40.00+ |
Are There Any Noted Errors for the 2018-S Dime?
Errors on modern proof coins are extremely rare because the U.S. Mint employs strict quality control for its collector products. However, they are not impossible.
Common errors to look for include “Die Doubling” (where parts of the design appear doubled) or “Struck Through” errors (where a foreign object like a piece of grease or thread was caught between the die and the coin).
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If you suspect you have an error coin, don’t clean it! Cleaning a coin with chemicals or cloth can permanent damage the surface and destroy its numismatic value.
Instead, use CoinKnow to scan the coin for specific error markers. A confirmed major error on a 2018-S Roosevelt Dime could potentially increase the value from a few dollars to several hundred dollars, as error collectors pay a premium for unique “mistakes” from the mint.
Conclusion: Is It Worth Keeping?
The 2018-S Roosevelt Dime is a beautiful example of modern American minting. While it likely won’t fund a retirement, it is a fantastic piece for a “Type Set” or a gift for a new collector.
If you find a 2018 dime with an “S” mint mark, check its edge. If the edge is solid silver, you have a valuable precious metal coin. If it has a copper stripe, you have a clad proof. Both are worth more than their 10-cent face value, but the silver versions are the true winners for your wallet.
Always remember that the market for modern coins fluctuates based on the price of silver and the interest of the collecting community. Keeping your coins in protective flips (plastic holders) will ensure they stay in top grade for years to come.
Your Old Coin Could Be Valuable!
Identify It & Know Its Real Value — Free Download
FAQ
Q: How can I tell if my 2018-S dime is silver or clad?
A: The easiest way is to look at the edge (the side) of the coin. If you see a copper-colored stripe, it is a clad coin. If the edge is brilliant silver all the way through, it is a 90% silver proof. You can also weigh them; a silver dime weighs 2.50 grams, while a clad dime weighs 2.27 grams.
Q: Why isn’t my 2018-P or 2018-D dime worth as much?
A: Dimes from Philadelphia (P) and Denver (D) were minted in the billions for general circulation. Because they are so common, they are usually only worth their 10-cent face value unless they are in absolutely flawless, high-grade condition.
Q: Are 2018-S Dimes rare?
A: They are “low mintage” compared to circulation dimes, but they are not rare in the world of collectibles. Around 500,000 to 1 million of these were produced for sets, which is enough to satisfy current collector demand.
Q: What is a “Deep Cameo” (DCAM)?
A: “Deep Cameo” refers to the contrast between the frosted design (Roosevelt’s head) and the mirror-like background. If the contrast is very sharp and heavy, the coin receives this designation, which increases its value.
