The reason I am asking this question is I have been looking for my next $20 Liberty and have noticed on some of the coins I have been looking at say ( NGC only, no PCGS ) I guess my question is do they grade similar ? like if I cracked open an NGC slab and sent it in to PCGS what are the chances that I would receive the sand grade ? use to do this all the time with currency PCGS and PMG with good results 7 out of 10 would maintain grade two would go down and one would go up.
Anyway, settle on the side of either one, as long as there is a CAC Green or Gold sticker attached (a legitimate sticker...accept no substitutes).
Thanks for the answers, I did notice that NGC slabs generally set fo less the PCGS ones, might be up for some cracking...LOL
Which, when given a little thought, that is illogical logic, and gobbledygobbledness, and before anyone goes bananas and jumps all over me, think about it.
P G C S is the best grading service ever (psst...who are they?) Don't hit me..I didn't do anything except copy what was posted.
A matter of choice really but there are marked differences, as noted such as price it seems you can get the same coin and grade cheaper in an NGC slab and still cheaper then that in a ANACS slab, so evidently TPG name means something.
For a guy like you, look up recent sales of the same coin with same grade. Find the one that sells for more. Use that TPG.
I am certain there is an example of sales/auction prices listed for a PCGS or NGC piece. I rest assured you do not have some 1 off $20.00 Liberty that has never been on the market. Legend, GC, CAC, PCGS, NGC ANA, Heritage, Stacks, etc.., etc., all have extensive listings, and I assume you know this. LOL.....
You have more faith in CAC than I do. My observation is that a lesser coin in an NGC holder is more likely to get a CAC sticker than the PCGS - CAC combination. Generally I think that PCGS is more conservative than NGC, but my most valuable coin is in an NGC holder because I liked it.
To answer the Ops original question the answer is no. They do not grade similar. They each use their own standards. In some ways these standards can be very similar, but in others they are not. And here's a pretty shocking fact: regardless of which grading service has the more difficult standard to meet, the coin in a PCGS holder typically sells for more. That is not my opinion, that is an empirical fact.
For as long as the 2 TPGs - NGC, PCGS - have existed that same basic question has been asked and debated so many times that not only is the horse dead and still being beaten, the guy beating the dead horse is also dead and there's a line waiting their turn to beat on him ! And ya know what ? There has never been nor will there ever be a consensus as to which of the two is better ! And, over the 20 years this forum has existed the resulting answer among CT forum members ends up being pretty evenly split, or as others put it - 50/50. My personal observations over the entire time they have existed are that NGC is tougher/more strict on some series, and PCGS is tougher/more strict on other series. And when crossovers are attempted each will upgrade, downgrade, or cross coins slabbed by the other. Again, with no definitive consensus regarding the outcome. So if one really wants an answer to the question - flip a coin. For that's as good a method of getting an answer as there is.