The 1999 D Delaware States Quarter Dollar is worth anywhere from its face value of $25 cents in circulated condition to over $400 in high-grade mint state. Most people find these coins in their spare change, but a few rare examples can fetch a significant premium from collectors.

Understanding the History of the 1999 D Delaware Quarter

The Delaware State Quarter holds a special place in American numismatic history because it was the very first coin released in the ambitious 50 State Quarters Program. Launched in 1999, this program changed the way Americans looked at their pocket change. The Delaware quarter features Caesar Rodney’s historic 1776 horseback ride to Philadelphia to cast a tie-breaking vote for independence.

For the average person who finds one of these coins, seeing the “D” mint mark beneath the “In God We Trust” motto means it was struck at the Denver Mint. In 1999, the Denver Mint produced 373,400,000 of these quarters. Because the mintage was so high, finding one isn’t difficult. However, finding one in “pristine” condition is where the real value lies. If you aren’t sure what you have, using a top coin identifier app can help you distinguish between a common pocket piece and a potential treasure.

In the early days of the program, people hoarded these coins, thinking they would all be worth a fortune. While most remain worth only 25 cents, certain errors and high-quality strikes have seen their values soar over the last two decades. Using the CoinKnow app can help you track these fluctuations and see how the market is trending for early statehood coins.

Grading and the Value of Circulated vs Uncirculated Quarters

When determining the 1999-D Delaware States Quarter Dollar value, the first thing to check is the wear and tear. If the coin has been jingling in pockets and used in vending machines, it is considered “circulated.” Most circulated 1999-D quarters are only worth their face value of 25 cents, or perhaps 35 to 50 cents to a beginner collector who just wants to fill a hole in a map.

“Uncirculated” coins are those that never made it into general commerce. These coins usually come from original bank rolls or Mint sets. Collectors use a scale from 1 to 70 to grade these. A coin graded MS65 (Mint State 65) is a beautiful specimen with few marks, while an MS68 is nearly perfect. You can view the latest 1999 Delaware quarter auction results and prices to see how much of a leap the value takes as the grade increases.

For example, a typical 1999-D graded MS65 might sell for $5 to $10. However, if you are lucky enough to find or own a specimen graded MS68 by a service like PCGS or NGC, the price can jump into the hundreds of dollars. The CoinKnow app is an excellent tool for comparing your coin’s condition against high-resolution images of graded coins to see where yours might fit on the scale.

Current Market Value Price Guide for 1999 D Quarters

To give you a better idea of what to expect when selling or buying, look at the current market averages. Keep in mind that “raw” coins (those not in a plastic slab from a grading company) usually sell for less than “certified” coins because the grade is guaranteed on the latter.

The current 1999 quarter value guide shows that while millions were made, the demand for high-end registry set coins keeps the top-tier prices high. Below is a breakdown of what you can expect based on the condition of your Denver-minted Delaware quarter.

Condition / Grade	Estimated Value (USD)
Circulated (Average Wear)	$0.25 – $0.50
About Uncirculated (AU58)	$1.00 – $2.00
Mint State 63 (Uncirculated)	$3.00 – $5.00
Mint State 65 (Gem Uncirculated)	$10.00 – $20.00
Mint State 67 (Superb Gem)	$50.00 – $120.00
Mint State 68 (Rare High Grade)	$400.00+

Rare Errors to Look for on the Delaware Quarter

If you find a 1999 D Delaware quarter that looks “weird,” you might have stumbled upon a mint error. Error coins are highly prized by specialists and can be worth much more than a standard coin. One of the most famous errors for the 1999 series (though more common in the Pennsylvania issue) is the “Die Crack” or “Cud” error.

On Delaware quarters, enthusiasts often look for “Spitting Horse” errors. This is caused by a die crack that runs from the horse’s mouth, making it look like the animal is spitting. While most common on Philadelphia (P) mint marks, keep a close eye on your Denver (D) coins as well. Other errors include “Off-Center Strikes,” where the design is not aligned properly, and “Double Dies,” where the lettering or images appear doubled.

If you suspect you have an error, use the CoinKnow app to zoom in on the details. A significant off-center strike on a 1999 D Delaware quarter can turn a 25-cent coin into a $50 to $100 item instantly. Always handle these coins by the edges to avoid getting finger oils on the surface, which can degrade the value over time.

How to Sell Your 1999 D Delaware Quarter

Once you’ve determined that your 1999 D Delaware States Quarter Dollar value is higher than 25 cents, you might want to sell it. For coins worth under $10, your best bet is usually a local coin shop or listing them in “lots” on eBay. Selling individual low-value coins can often result in shipping costs being higher than the profit.

For high-grade coins (MS67 and above) or significant errors, professional auction houses or specialized Facebook collector groups are better venues. Rare coins should ideally be certified by PCGS or NGC before sale to maximize the price. Buyers are much more willing to pay top dollar when the grade is verified by an independent third party.

Before selling, always do your research. Market prices for state quarters can fluctuate based on collector interest. Using digital tools to stay updated on the latest sales figures ensures that you don’t accidentally spend a rarity at the grocery store or sell a valuable error for a fraction of its true worth.

Frequently Asked Questions

Q: Is the 1999 D Delaware quarter made of silver?

A: No, the 1999 D Delaware quarter intended for circulation is made of a copper-nickel clad composition. Only specific “Silver Proof” quarters minted in San Francisco (S mint mark) contain 90% silver.

Q: What is the most expensive 1999 D Delaware quarter ever sold?

A: High-grade specimens in MS68 condition have sold for over $400 at major auctions. If a coin were ever found in MS69, it would likely break records for the series.

Q: How can I tell if my 1999 D quarter is an uncirculated coin?

A: An uncirculated coin will have “mint luster,” a frosty or satiny sheen that reflects light in a wagon-wheel pattern. If the highest points of Caesar Rodney’s clothing or the horse’s hair look flat or shiny, the coin is likely circulated.

Q: Where is the mint mark located on the 1999 Delaware quarter?

A: The mint mark (D for Denver) is located on the obverse (heads) side of the coin, just to the right of George Washington’s ponytail and below the “In God We Trust” motto.