NGC is the official grading service of the PNG

Numismatic Guaranty Corporation of America (NGC)

Approaching its 20 th anniversary, NGC is now one of the world’s leading rare coin grading company, currently certifying over 160,000 coins per month. More than 2,200 active members throughout the world compose our dealer network, the largest of any certification company. Today, NGC-certified coins can be seen trading on electronic exchanges and in every major numismatic auction.

NGC has emerged as a market leader as a result of its unique talent resource, the foremost experts in a broad range of numismatic fields from US coins, to medals and tokens, to die varieties, and to world coins. Once they have joined NGC, our full-time grading experts are no longer active in the commercial coin marketplace, and are prohibited from buying or selling coins to ensure impartiality.

NGC has been an innovator in numismatics, pioneering new digital imaging services, and improvements in rare coin storage and display. In addition to being guaranteed for their grade and authenticity, all coins certified by NGC are encapsulated in our proprietary holder, proven the most effective barrier for long-term storage of numismatic properties. Beyond its grading services, NGC provides hobby educational products such as census information of coins graded and numismatic educational curriculum. NGC is also the Official Grading Service of the congressionally chartered organization of the coin hobby, the American Numismatic Association (ANA). NGC is also the official grading service of the Professional Numismatist Guild.

If you're not using NGC, the official grading service of the PNG, be sure to ask these questions before choosing a service.

GRADING SERVICE QUESTIONNAIRE

1) How many years has your company been grading, authenticating and encapsulating numismatic items?

2) How many numismatic items has your company graded since its inception?

3) On average, how many numismatic items is your company presently grading monthly?

4) Does your company offer a grading and authenticity guarantee?

5) Does your company publish your guarantee in writing on a website or in company literature?

6) Does your company offer to Buy Back numismatic items when necessary?

7) Does your company maintain ongoing census or population statistics for your numismatic items?

8) Are your numismatic items environmentally protected in the holder?

9) Does your company have an established grading standard?

10) How are your grading standards applied and maintained?

11) Does your company have an established dealer or collector network?

12) Is there an active bid/ask sight unseen market for your company’s numismatic items?

13) Are your company’s items traded on a recognized numismatic trading network?

14) What percentage, in your estimation, of the overall collector/dealer market place trades in your material?

15) Does your company provide ample insurance coverage when numismatic material in on your premises?

16) What is your company’s grading procedure? The number of graders that grade each numismatic item?

17) What safeguards does your company have in place to keep your graders from grading numismatic material they own?

18) Does your company provide an ongoing educational program for your graders and authenticators?