Why the disparity in three similar Bicentennial Proof quarters 1 1

[Mr.Bill347]

Please explain why I am seeing such a disparity in value in three similar PF69 bicentennial quarters.

[Ali E.]

For US price guide questions, please contact kstoutjesdyk@NGCcoin.com.

For NGC Registry scoring information, please read below. Thank you.

NGC Registry- Scoring Program

We place a score value on each coin that is based on the relative rarity of its type, date and grade. This value takes many factors into account such as grade, population, market value, eye appeal and expert opinion. When a set is ranked in the registry, its rank is judged based on the total of the individual scores of all the coins. 

There is, however, no one perfect source that accounts for all the elements needed to be considered when ranking sets in the Registry. Comparative values of coins in the market can appear distorted (especially at the top end). On the other hand, the grades alone are a poor indicator of how much "finer" a coin is because the grade does not reflect the rarity of a coin. 

Through extensive market research, we are able to provide a ranking system that recognizes the intelligence of the market, but offers a more true reflection of relative rarity than does market value, because it appropriately adjusts for market distortions.