1999-S Delaware Silver Quarter Value: Is Your Coin a Treasure?
The 1999-S Delaware Silver States Quarter is worth anywhere from $8 in typical proof condition to over $100 for high-grade Deep Cameo specimens. While most found in collections are worth a modest premium over their silver melt value, certain “perfect” grades can fetch much higher prices at auction.
| Condition / Grade | Estimated Value |
|---|---|
| PR 65 (Typical Proof) | $8.00 – $12.00 |
| PR 69 Deep Cameo | $15.00 – $25.00 |
| PR 70 Deep Cameo (Perfect) | $80.00 – $150.00 |
| Silver Melt Value Only | ~$5.00 (Fluctuates) |
Understanding the 1999-S Delaware Silver Proof Quarter
If you have discovered a 1999 Delaware quarter with a distinct “S” mint mark and a shiny, mirror-like finish, you might be holding a piece of numismatic history. 1999 marked the very first year of the 50 State Quarters Program, and Delaware was the first state honored. While millions of copper-nickel quarters were minted for circulation, the San Francisco Mint produced special Silver Proof versions specifically for collectors.
Identifying these coins can be tricky if you aren’t an expert, which is why many beginners use a free coin identifier app to instantly distinguish between a standard clad quarter and the more valuable 90% silver version. The silver edition is significantly heavier and lacks the copper-colored “sandwich” edge seen on everyday change.
When checking your collection with CoinKnow, look closely at the “S” mark. Unlike “P” (Philadelphia) or “D” (Denver) quarters found in your pocket, these were never intended to be spent. They were sold in sets, but over the years, many have been broken out of their plastic cases or inherited by people who may not realize the 1999 quarter value hinges largely on its silver content and strike quality. These coins feature Caesar Rodney on his historic 1776 ride to cast his vote for independence.
Silver Content vs. Numismatic Rarity
The primary driver for the base value of the 1999-S Delaware Silver Quarter is its metal composition. These coins are struck in 90% silver and 10% copper. This means that even if the coin is scratched or damaged, it will always be worth at least its “melt value.” As silver prices fluctuate, the baseline price for this coin moves accordingly, usually staying above the $5 mark.
However, for serious collectors, the value goes far beyond the metal. Numismatic value refers to the rarity and condition of the coin. A 1999-S Delaware Silver Quarter that has been kept in its original US Mint packaging will command a higher price than one that has been handled with bare fingers. Fingerprint oils can actually etch the delicate surface of a proof coin over time, permanently lowering its grade.
| Metal Composition | Weight | Diameter |
|---|---|---|
| 90% Silver, 10% Copper | 6.25 Grams | 24.3 mm |
The Importance of “Deep Cameo” Designations
When researching the 1999-S Delaware Silver Quarter’s worth and pricing data, you will often see the term “DCAM” or “Deep Cameo.” This refers to the visual contrast on the coin. On a high-quality proof, the raised parts of the design (like Caesar Rodney and the lettering) look frosted and white, while the flat background looks like a black mirror.
The more intense this contrast is, the more likely the coin is to reach a high grade. The CoinKnow app can help you examine these details by providing high-resolution reference images for comparison. A “Deep Cameo” designation is almost mandatory for the coin to reach the $20+ price range. Professional grading services like PCGS or NGC are the final authorities on whether a coin justifies the DCAM label.
Because 1999 was the inaugural year of the program, demand was incredibly high. The Mint produced 804,565 of these silver proof sets. While that sounds like a lot, many sets have been lost or damaged over the last two decades, making well-preserved individual silver quarters increasingly desirable for those trying to complete a “Silver State Quarter” album.
Grading and How It Affects Price
In the world of coin collecting, “grade” is everything. For proof coins like the Delaware Silver Quarter, the scale runs from 1 to 70. A PR65 (Proof 65) is considered a standard, attractive coin with some minor imperfections. A PR69 is nearly perfect to the naked eye. A PR70 is a “perfect” coin—no scratches, no spots, and a flawless strike even under 5x magnification.
The jump in value between a PR69 and a PR70 is massive. While a PR69 might sell for $20, a PR70 can easily top $100 because collectors who want the “best of the best” are willing to pay a heavy premium. If you find a silver quarter that looks absolutely pristine, do not touch the surfaces! Hold it only by the edges. Any contact can drop the grade significantly.
| Grade Level | Visual Description | Market Value |
|---|---|---|
| PR 60-64 | Noticeable marks or cloudiness | $7 – $10 |
| PR 67-68 | Very clean, minor spots only | $12 – $18 |
| PR 69 DCAM | Virtually perfect to the naked eye | $20 – $30 |
| PR 70 DCAM | Flawless under magnification | $100+ |
Common Errors vs. Proof Quality
While “errors” are the holy grail of rare coins, they are extremely rare on proof quarters because the Mint uses a much stricter quality control process for these collector items. However, some 1999 quarters have been found with striking errors, such as “doubled dies” (where the lettering or design looks doubled) or “off-center strikes.”
If you think you see an error on your 1999-S Delaware Silver Quarter, use CoinKnow to zoom in on the details. An error on a silver proof coin is a statistical anomaly and could potentially be worth hundreds or even thousands of dollars to a specialist. Most “errors” found by beginners, however, turn out to be simple “post-mint damage”—scratches that happened after the coin left the Mint.
Keep in mind that there are also “Clad Proofs.” These have the “S” mint mark but are made of the same copper-nickel as normal change. They look shiny like silver, but they aren’t. Always check the edge of the coin. If you see a brown copper stripe, it’s a clad proof worth about $1.00. If the edge is solid bright silver/white, you have the more valuable silver version.
Where to Sell Your 1999 Delaware Silver Quarter
If you’ve determined that your coin is a high-grade silver specimen, you have several options for selling. For individual coins valued under $30, local coin shops or eBay are your best bet. If you believe your coin is a PR70 (perfect grade), it is worth the investment to have it professionally certified by a service like PCGS before selling it.
Auctions are another popular route for high-end coins. Many collectors use online platforms to track realized prices from the last several months to ensure they are getting a fair market rate. Always remember that buyers will pay more for coins that are still in their original Mint lenses or protective flips, as this guarantees the coin hasn’t been exposed to environmental damage.
FAQ
1999-S Delaware Silver Quarter Frequently Asked Questions
Q: How can I tell if my 1999-S Delaware quarter is silver or clad?
A: The easiest way is to look at the edge of the coin. A silver quarter will have a solid silver/white edge with no copper stripe. Additionally, a silver quarter weighs 6.25 grams, while a clad quarter weighs only 5.67 grams.
Q: Why is 1999 a significant year for quarters?
A: 1999 was the first year of the 50 State Quarters Program. Delaware was the very first state featured, making it highly collectible for people who want the first “first” of the series.
Q: Is a 1999-S Delaware quarter found in circulation worth much?
A: If it’s a silver version found in circulation, it has likely been scratched (“impaired proof”). It will still be worth its silver melt value (around $5), but it won’t carry the high numismatic premium of a pristine PR69 or PR70 coin.
Q: What is the highest price ever paid for a 1999-S Delaware Silver Quarter?
A: While prices fluctuate, perfect PR70 Deep Cameo specimens have been known to sell for over $200 at major auctions during periods of high collector demand, though the average for a PR70 is usually closer to $100.
