I have had no personal experience with either. A non-statistical review of Morgan silver dollar sales at important auctions seems to indicate that PCGS rated coins sell for more than NGC coins rated at the same level.
PCGS just grades the coin itself..not how many coins you send in for grading!!
you said it...not me!!
John W said:So are you saying that if I send in 10 coins to be graded at PCGS they will just grade them honestly, but if I send 10 coins to NGC they will grade them higher because I'm a frequent flyer?
Gary said:PCGS just grades the coin itself..not how many coins you send in for grading!!
I posted this on another thread, but I think it belongs here too:
To settle the grading debate there should be an independent audit made. From this audit, a statistically driven grading calibration could be made. I think Mark Apsalon(Spare Change youtube fame) could pull this off with some help from a statistician. It would have to be a large sample of coins, say 100 or so. or maybe more. The sample would have to be large enough to represent enough data to yield a significant result. Then the data could be statistically analyzed for deviations in grading for each coin(a statistical spread). Those with the highest statistical spreads could then be regraded by the same companies to see how consistent they are with the first sets of grading.
Then, after the second round of grading each grading company could present the reasons for the grade they gave either in interview or written format. Until some real statistical analysis is done among the grading companies, you might as well just talk about the weather instead. It would probably be a lot more interesting and a lot more accurate than speculation on which company slabs coins the most accurately. I know that a lot of you claim to have enough experience with all the grading companies to make informed opinions, but the hard data would be a nice way to settle this debate, don't you think? Has this ever been done in any meaningful way? This is a question for all of the resident 'expert numismatists' that frequent this site.
The coins for the samples would be interspersed with the other coins. Then extracted back out by the independent agent that will tabulate the results. In the same way, technical grading could be used to measure imperfections manifested on each coin within the survey. In my opinion appeal and color should really be the only aspects of coin grading that would ever really need human involvement as computers and laser imagery can do a much more accurate and consistent job of scouting out how accurately the die has portrayed the image on to the metal. What are you opinions on technical grading for the less subjective aspects of coin grading? I personally would trust it more than human grading because computers don't have "bad days" like their human counterparts.