If you are going to spend a substantial amount of money on a scarce to rare coin, it is imperative to buy coins that are properly graded. Monetary Portfolio Consultants, L.L.C. utilizes the world's foremost independent grading laboratories. These two major labs are the Numismatic Guaranty Corporation(NGC) and the Professional Coin Grading Service (PCGS). These independent labs do not buy or sell coins, but act as impartial intermediaries between buyers and sellers.

For more information on these grading systems, visit the links below:

NGC
http://www.ngccoin.com/home.cfm

PCGS
http://www.pcgs.com/

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