Coin collecting is an exciting hobby for many people, and some rare coins are worth surprisingly high prices. Some special diamond and bicentennial quarters are in great demand in the world of American numismatists (numismatists).
These coins are attracting the attention of numismatists and collectors due to their rarity, historical significance and market demand. Let’s know about those five rare diamonds and a special quarter that are considered priceless gems in the world of numismatists.
1894-S Barber Dame
The 1894-S Barber Dame is one of the rarest and most valuable numismatists in America. It was minted only 24 times at the San Francisco Mint, and less than 10 coins have been found today.
Why is it valued?
- It was extremely valuable, with only 24 mints.
- There’s a lot of mystery surrounding its origins (some believe these coins were made for bank executives, either).
- It’s a priceless dime for merchants’ collections.
- Benchmark Price: In good condition, it has sold for over $1 million, while some special editions have been worth over $2 million.
1916-D Mercury Dime

The 1916-D Mercury Dime is an extremely rare dime. It was made at the Denver Mint, but only 264,000 coins were minted, one of the lowest mintages compared to other 20th century dimes.
Why is it valued?
- This was the first year of the Mercury Dime design.
- It had an extremely low mintage number.
- It’s very hard to find a job in high grade.
- Discount Price: Coins in good condition can sell for thousands of dollars, while uncirculated coins graded MS-65 or higher can sell for over $100,000.
1942/1 Mercury Dime (Overdate Error)
This was struck when a 1941 die was punched onto a 1942 die, leaving a ‘1’ marked ‘2’ as pictured below. This overdate error occurred at both the Philadelphia and Denver Mints, although the Denver version is more rare.
Why is it valued?
- Visible overdate error.
- Placement is very difficult in high grades.
- Overwhelmingly the highest among flawed document collections.
- Discount Price: The price of this coin can vary based on condition. Can range from a few hundred dollars in low grades to over $10,000 in high grades.
1968 No-S Roosevelt Dime
The 1968 No-S Roosevelt Dime is a modern minting error in which a certificated coin (proof coin) was struck loose at the San Francisco Mint without an ‘S’ mint mark.
Why is it valued?
- The certificate has an ‘S’ mint mark.
- Only a few coins are known to exist.
- It is one of the rarest of the modern U.S. dimes.
- Restaurant price: It is said to be worth $20,000 to $30,000.
1975 No-S Roosevelt Dime

Like the 1968 No-S Dime, the 1975 No-S Roosevelt Dime is also a certificate that was struck loose at the San Francisco Mint by mistake without an ‘S’ mint mark. This error makes it one of the rarest dimes in U.S. history.
Why is it valued?
- The certificate does not include the ‘S’ mint mark.
- Only a few coins are known.
- This rarity is well known in modern U.S. markets.
- Discount Price: High quality coins have sold for over $50,000.
Bicentennial Quarter (1976)
The 1976 Bicentennial quarter was dedicated to America’s 200th anniversary. Although millions were made, some special editions and flawed coins have made it rare and valuable.
Why might it be undervalued?
- Silver Composition: Some Bicentennial quarters were minted in 40% silver, making them more valuable than the copper-nickel version.
- Market Condition: If the coin is dry without any splotches and grades MS-67 or higher, it might be worth more.
- Errors and Variations: Minting errors, such as a double die strike or minting on the wrong planchet, can increase the value.
Selling Price:
- Most Bicentennial quarters are only minted, their value equivalent to (25 cents).
- The silver version can sell for a price of $10 to $20.
- Rare error coins or coins with heavy high grades can reach prices of $5,000 to $10,000.
Note: Some claims state that Bicentennial quarters can be worth up to a million dollars, but in reality the most valuable versions only fetch thousands of dollars.
Conclusion
These five rare name and Bicentennial quarters continue to be a hotbed of association due to their rarity, historical significance, and unique tautology. If you don’t have a priceless treasure, give it a consideration by having it authenticated and graded by a professional – because you may have a priceless treasure!
Frequently Asked Questions (FAQs)
What is the rarest U.S. dime?
The 1894-S Barber dime is the rarest, as only less than 10 coins are known to exist.
How much can a 1916-D Mercury dime be worth?
High-grade coins can sell for over $100,000.
Why is the 1975 No-S Roosevelt dime so valuable?
It is a proof coin with no ‘S’ mint mark, making it rare.
Are Bicentennial quarters worth anything?
Most common quarters are only 25 cents, but silver and error versions can fetch up to thousands of dollars.
How do I know if my coin is valuable?
Check the mint mark, error, and quality and contact an expert to have the coin authenticated.