Extraordinary claims require extraordinary evidence. Before accepting such valuations, it's crucial to verify the source of this information and ensure that it comes from reputable numismatic experts or organizations.
Valuations in the millions for individual quarters are exceptionally rare and usually reserved for coins with exceptional historical significance, extreme rarity, or unique characteristics. Without further context or specifics about why these particular quarters are valued so high, it's challenging to assess the claim's credibility.
The value of collectible coins, including Bicentennial Quarters, can fluctuate based on market demand, economic conditions, and changes in collector preferences. While some rare coins may command high prices, these valuations can change over time.
As with any high-value collectible item, authentication and certification are critical. Coins valued in the millions would likely undergo rigorous authentication and grading processes by reputable organizations such as PCGS or NGC to verify their authenticity and quality.
It's worth researching historical sales records and auction results for similar coins to gauge whether such valuations are realistic. Comparing past sales of rare coins can provide insight into the potential value of these Bicentennial Quarters.